Query problem

I having trouble with the query below. I'm trying to
return the number of calls base on severity. The
#TempTable has 3 severities listed (1,2,&3). There are
no calls for severity 1, but i still want it to return a
record with a count of 0. A sample of what the query is
returning is at the bottom of this message. Please help.
select
Call.severity,
count(call.callno) as callcount
from
Call
left join Severity
On Call.Severity = Severity.severityID
where
datetimesubmitted between '01/01/2004' and '01/31/2004'
and
status <> 'CANCELLED'
group by Call.severity
severity callcount
-- --
2 4
3 25
Since you've posted no DDL or sample data I can't say for sure, but you can
try:
select
Severity.severityID,
SUM(CASE WHEN Call.Severity = Severity.severityID THEN 1 ELSE 0 END) as
callcount
from
Severity
left join Call
On Call.Severity = Severity.severityID
where
datetimesubmitted between '01/01/2004' and '01/31/2004'
and
status <> 'CANCELLED'
group by Severity.severityID
"Vic" <vduran@.specpro-inc.com> wrote in message
news:179e501c421a7$41aa2060$a001280a@.phx.gbl...
> I having trouble with the query below. I'm trying to
> return the number of calls base on severity. The
> #TempTable has 3 severities listed (1,2,&3). There are
> no calls for severity 1, but i still want it to return a
> record with a count of 0. A sample of what the query is
> returning is at the bottom of this message. Please help.
>
> select
> Call.severity,
> count(call.callno) as callcount
> from
> Call
> left join Severity
> On Call.Severity = Severity.severityID
> where
> datetimesubmitted between '01/01/2004' and '01/31/2004'
> and
> status <> 'CANCELLED'
> group by Call.severity
>
> severity callcount
> -- --
> 2 4
> 3 25
sql

Query problem

I having trouble with the query below. I'm trying to
return the number of calls base on severity. The
#TempTable has 3 severities listed (1,2,&3). There are
no calls for severity 1, but i still want it to return a
record with a count of 0. A sample of what the query is
returning is at the bottom of this message. Please help.
select
Call.severity,
count(call.callno) as callcount
from
Call
left join Severity
On Call.Severity = Severity.severityID
where
datetimesubmitted between '01/01/2004' and '01/31/2004'
and
status <> 'CANCELLED'
group by Call.severity
severity callcount
-- --
2 4
3 25Since you've posted no DDL or sample data I can't say for sure, but you can
try:
select
Severity.severityID,
SUM(CASE WHEN Call.Severity = Severity.severityID THEN 1 ELSE 0 END) as
callcount
from
Severity
left join Call
On Call.Severity = Severity.severityID
where
datetimesubmitted between '01/01/2004' and '01/31/2004'
and
status <> 'CANCELLED'
group by Severity.severityID
"Vic" <vduran@.specpro-inc.com> wrote in message
news:179e501c421a7$41aa2060$a001280a@.phx
.gbl...
> I having trouble with the query below. I'm trying to
> return the number of calls base on severity. The
> #TempTable has 3 severities listed (1,2,&3). There are
> no calls for severity 1, but i still want it to return a
> record with a count of 0. A sample of what the query is
> returning is at the bottom of this message. Please help.
>
> select
> Call.severity,
> count(call.callno) as callcount
> from
> Call
> left join Severity
> On Call.Severity = Severity.severityID
> where
> datetimesubmitted between '01/01/2004' and '01/31/2004'
> and
> status <> 'CANCELLED'
> group by Call.severity
>
> severity callcount
> -- --
> 2 4
> 3 25

Query Performance (am I in the ms right forum for performance Q's

I get a massive bookmark in the execution plans when I run the below SQL to
return 23 rows of data...The volumens are as below. If I take out the
reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
and I get drastically improved performance. a11 is well indexed. A new index
was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] O
N
[dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id])
ON [PRIMARY]
GO
and it has provided many other performance gains on a number of other pieces
of SQL. How do I begin to think about/code for this lack of performance.
Don't worry I don't expect you to understand the tables or business but if
any experiences have been overcome please post.
select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
select count(*) from prt_lu_product(nolock) -- Rows: 1719900
select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
select count(*) from ITv_lu_day(nolock) -- Rows: 4831
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
-- Duration: 0:05:02.00 - 23 rows
select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
a15.ITv_year_id year_id,
count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
a11.Policy_id end)) WJXBFS1
into #ZZT5J0300BKMD00J
from fat_bse_po_risk_detail a11
join prt_lu_product a12
on (a11.Product_id = a12.Product_id)
join POt_lu_policy a13
on (a11.Policy_id = a13.Policy_id)
join vht_lu_vehicle a14
on (a11.Vehicle_id = a14.Vehicle_id)
join ITv_lu_day a15
on (a11.Inception_date_id = a15.Inception_date_id)
where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a11.Tr_sub_type_id in (430, 433, 3530)
and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a12.Pr_Group_id in (2, 3)
and a11.f_Ren_Flag = '4'
and a11.Po_tr_bus_type_id > 0)
group by a14.Vh_VhAll_group_id,
a15.ITv_year_id
I get a massive bookmark in the execution plans when I run the below SQL to
return 23 rows of data...The volumens are as below. If I take out the
reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
and I get drastically improved performance. a11 is well indexed. A new index
was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] O
N
[dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id])
ON [PRIMARY]
GO
and it has provided many other performance gains on a number of other pieces
of SQL. How do I begin to think about/code for this lack of performance.
Don't worry I don't expect you to understand the tables or business but if
any experiences have been overcome please post.
select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
select count(*) from prt_lu_product(nolock) -- Rows: 1719900
select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
select count(*) from ITv_lu_day(nolock) -- Rows: 4831
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
-- Duration: 0:05:02.00 - 23 rows
select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
a15.ITv_year_id year_id,
count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
a11.Policy_id end)) WJXBFS1
into #ZZT5J0300BKMD00J
from fat_bse_po_risk_detail a11
join prt_lu_product a12
on (a11.Product_id = a12.Product_id)
join POt_lu_policy a13
on (a11.Policy_id = a13.Policy_id)
join vht_lu_vehicle a14
on (a11.Vehicle_id = a14.Vehicle_id)
join ITv_lu_day a15
on (a11.Inception_date_id = a15.Inception_date_id)
where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a11.Tr_sub_type_id in (430, 433, 3530)
and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a12.Pr_Group_id in (2, 3)
and a11.f_Ren_Flag = '4'
and a11.Po_tr_bus_type_id > 0)
group by a14.Vh_VhAll_group_id,
a15.ITv_year_idThis query involves many tables, of which you posted no information
(other than the row count). You also did not post or properly describe
the query plan. So there is not enough information to give detailed
advice.
If removing the predicate "a11.Tr_sub_type_id in (430, 433, 3530)"
increases the performance dramatically, then check out which index is
used (for that query), and add Tr_sub_type_id to this index (or create a
new index with this definition).
The query may benefit from a nonclustered index on
POt_lu_policy(Policy_id,Po_corp_unit_id)
You mention that you added an index to the TRt_lu_Trans_Subtype table,
but this seems irrelevant, since this table is not used in the query.
You could also consider running the Index Tuning Wizard.
Other generic advice:
- Make sure your statistics are up to date
- Make sure the expressions in a join clause have the same data type
definition
- Pay special attention to the clustered index definition of the largest
table
Hope this helps,
Gert-Jan
marcmc wrote:
> I get a massive bookmark in the execution plans when I run the below SQL t
o
> return 23 rows of data...The volumens are as below. If I take out the
> reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappea
rs
> and I get drastically improved performance. a11 is well indexed. A new ind
ex
> was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype]
ON
> [dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id
]) ON [PRIMARY]
> GO
> and it has provided many other performance gains on a number of other piec
es
> of SQL. How do I begin to think about/code for this lack of performance.
> Don't worry I don't expect you to understand the tables or business but if
> any experiences have been overcome please post.
> select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
> select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
> select count(*) from prt_lu_product(nolock) -- Rows: 1719900
> select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
> select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
> select count(*) from ITv_lu_day(nolock) -- Rows: 4831
> SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
> -- Duration: 0:05:02.00 - 23 rows
> select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
> a15.ITv_year_id year_id,
> count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
> a11.Policy_id end)) WJXBFS1
> into #ZZT5J0300BKMD00J
> from fat_bse_po_risk_detail a11
> join prt_lu_product a12
> on (a11.Product_id = a12.Product_id)
> join POt_lu_policy a13
> on (a11.Policy_id = a13.Policy_id)
> join vht_lu_vehicle a14
> on (a11.Vehicle_id = a14.Vehicle_id)
> join ITv_lu_day a15
> on (a11.Inception_date_id = a15.Inception_date_id)
> where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a11.Tr_sub_type_id in (430, 433, 3530)
> and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
> and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
> and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a12.Pr_Group_id in (2, 3)
> and a11.f_Ren_Flag = '4'
> and a11.Po_tr_bus_type_id > 0)
> group by a14.Vh_VhAll_group_id,
> a15.ITv_year_id
>
> I get a massive bookmark in the execution plans when I run the below SQL t
o
> return 23 rows of data...The volumens are as below. If I take out the
> reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappea
rs
> and I get drastically improved performance. a11 is well indexed. A new ind
ex
> was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype]
ON
> [dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id
]) ON [PRIMARY]
> GO
> and it has provided many other performance gains on a number of other piec
es
> of SQL. How do I begin to think about/code for this lack of performance.
> Don't worry I don't expect you to understand the tables or business but if
> any experiences have been overcome please post.
> select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
> select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
> select count(*) from prt_lu_product(nolock) -- Rows: 1719900
> select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
> select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
> select count(*) from ITv_lu_day(nolock) -- Rows: 4831
> SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
> -- Duration: 0:05:02.00 - 23 rows
> select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
> a15.ITv_year_id year_id,
> count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
> a11.Policy_id end)) WJXBFS1
> into #ZZT5J0300BKMD00J
> from fat_bse_po_risk_detail a11
> join prt_lu_product a12
> on (a11.Product_id = a12.Product_id)
> join POt_lu_policy a13
> on (a11.Policy_id = a13.Policy_id)
> join vht_lu_vehicle a14
> on (a11.Vehicle_id = a14.Vehicle_id)
> join ITv_lu_day a15
> on (a11.Inception_date_id = a15.Inception_date_id)
> where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a11.Tr_sub_type_id in (430, 433, 3530)
> and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
> and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
> and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a12.Pr_Group_id in (2, 3)
> and a11.f_Ren_Flag = '4'
> and a11.Po_tr_bus_type_id > 0)
> group by a14.Vh_VhAll_group_id,
> a15.ITv_year_id
>sql

Query Performance (am I in the ms right forum for performance Q's

I get a massive bookmark in the execution plans when I run the below SQL to
return 23 rows of data...The volumens are as below. If I take out the
reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
and I get drastically improved performance. a11 is well indexed. A new index
was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] ON
[dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id]) ON [PRIMARY]
GO
and it has provided many other performance gains on a number of other pieces
of SQL. How do I begin to think about/code for this lack of performance.
Don't worry I don't expect you to understand the tables or business but if
any experiences have been overcome please post.
select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
select count(*) from prt_lu_product(nolock) -- Rows: 1719900
select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
select count(*) from ITv_lu_day(nolock) -- Rows: 4831
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
-- Duration: 0:05:02.00 - 23 rows
select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
a15.ITv_year_id year_id,
count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
a11.Policy_id end)) WJXBFS1
into #ZZT5J0300BKMD00J
from fat_bse_po_risk_detail a11
join prt_lu_product a12
on (a11.Product_id = a12.Product_id)
join POt_lu_policy a13
on (a11.Policy_id = a13.Policy_id)
join vht_lu_vehicle a14
on (a11.Vehicle_id = a14.Vehicle_id)
join ITv_lu_day a15
on (a11.Inception_date_id = a15.Inception_date_id)
where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a11.Tr_sub_type_id in (430, 433, 3530)
and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a12.Pr_Group_id in (2, 3)
and a11.f_Ren_Flag = '4'
and a11.Po_tr_bus_type_id > 0)
group by a14.Vh_VhAll_group_id,
a15.ITv_year_id
I get a massive bookmark in the execution plans when I run the below SQL to
return 23 rows of data...The volumens are as below. If I take out the
reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
and I get drastically improved performance. a11 is well indexed. A new index
was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] ON
[dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id]) ON [PRIMARY]
GO
and it has provided many other performance gains on a number of other pieces
of SQL. How do I begin to think about/code for this lack of performance.
Don't worry I don't expect you to understand the tables or business but if
any experiences have been overcome please post.
select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
select count(*) from prt_lu_product(nolock) -- Rows: 1719900
select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
select count(*) from ITv_lu_day(nolock) -- Rows: 4831
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
-- Duration: 0:05:02.00 - 23 rows
select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
a15.ITv_year_id year_id,
count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
a11.Policy_id end)) WJXBFS1
into #ZZT5J0300BKMD00J
from fat_bse_po_risk_detail a11
join prt_lu_product a12
on (a11.Product_id = a12.Product_id)
join POt_lu_policy a13
on (a11.Policy_id = a13.Policy_id)
join vht_lu_vehicle a14
on (a11.Vehicle_id = a14.Vehicle_id)
join ITv_lu_day a15
on (a11.Inception_date_id = a15.Inception_date_id)
where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a11.Tr_sub_type_id in (430, 433, 3530)
and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a12.Pr_Group_id in (2, 3)
and a11.f_Ren_Flag = '4'
and a11.Po_tr_bus_type_id > 0)
group by a14.Vh_VhAll_group_id,
a15.ITv_year_id
This query involves many tables, of which you posted no information
(other than the row count). You also did not post or properly describe
the query plan. So there is not enough information to give detailed
advice.
If removing the predicate "a11.Tr_sub_type_id in (430, 433, 3530)"
increases the performance dramatically, then check out which index is
used (for that query), and add Tr_sub_type_id to this index (or create a
new index with this definition).
The query may benefit from a nonclustered index on
POt_lu_policy(Policy_id,Po_corp_unit_id)
You mention that you added an index to the TRt_lu_Trans_Subtype table,
but this seems irrelevant, since this table is not used in the query.
You could also consider running the Index Tuning Wizard.
Other generic advice:
- Make sure your statistics are up to date
- Make sure the expressions in a join clause have the same data type
definition
- Pay special attention to the clustered index definition of the largest
table
Hope this helps,
Gert-Jan
marcmc wrote:
> I get a massive bookmark in the execution plans when I run the below SQL to
> return 23 rows of data...The volumens are as below. If I take out the
> reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
> and I get drastically improved performance. a11 is well indexed. A new index
> was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] ON
> [dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id]) ON [PRIMARY]
> GO
> and it has provided many other performance gains on a number of other pieces
> of SQL. How do I begin to think about/code for this lack of performance.
> Don't worry I don't expect you to understand the tables or business but if
> any experiences have been overcome please post.
> select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
> select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
> select count(*) from prt_lu_product(nolock) -- Rows: 1719900
> select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
> select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
> select count(*) from ITv_lu_day(nolock) -- Rows: 4831
> SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
> -- Duration: 0:05:02.00 - 23 rows
> select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
> a15.ITv_year_id year_id,
> count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
> a11.Policy_id end)) WJXBFS1
> into #ZZT5J0300BKMD00J
> from fat_bse_po_risk_detail a11
> join prt_lu_product a12
> on (a11.Product_id = a12.Product_id)
> join POt_lu_policy a13
> on (a11.Policy_id = a13.Policy_id)
> join vht_lu_vehicle a14
> on (a11.Vehicle_id = a14.Vehicle_id)
> join ITv_lu_day a15
> on (a11.Inception_date_id = a15.Inception_date_id)
> where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a11.Tr_sub_type_id in (430, 433, 3530)
> and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
> and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
> and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a12.Pr_Group_id in (2, 3)
> and a11.f_Ren_Flag = '4'
> and a11.Po_tr_bus_type_id > 0)
> group by a14.Vh_VhAll_group_id,
> a15.ITv_year_id
>
> I get a massive bookmark in the execution plans when I run the below SQL to
> return 23 rows of data...The volumens are as below. If I take out the
> reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
> and I get drastically improved performance. a11 is well indexed. A new index
> was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] ON
> [dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id]) ON [PRIMARY]
> GO
> and it has provided many other performance gains on a number of other pieces
> of SQL. How do I begin to think about/code for this lack of performance.
> Don't worry I don't expect you to understand the tables or business but if
> any experiences have been overcome please post.
> select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
> select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
> select count(*) from prt_lu_product(nolock) -- Rows: 1719900
> select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
> select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
> select count(*) from ITv_lu_day(nolock) -- Rows: 4831
> SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
> -- Duration: 0:05:02.00 - 23 rows
> select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
> a15.ITv_year_id year_id,
> count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
> a11.Policy_id end)) WJXBFS1
> into #ZZT5J0300BKMD00J
> from fat_bse_po_risk_detail a11
> join prt_lu_product a12
> on (a11.Product_id = a12.Product_id)
> join POt_lu_policy a13
> on (a11.Policy_id = a13.Policy_id)
> join vht_lu_vehicle a14
> on (a11.Vehicle_id = a14.Vehicle_id)
> join ITv_lu_day a15
> on (a11.Inception_date_id = a15.Inception_date_id)
> where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a11.Tr_sub_type_id in (430, 433, 3530)
> and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
> and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
> and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a12.Pr_Group_id in (2, 3)
> and a11.f_Ren_Flag = '4'
> and a11.Po_tr_bus_type_id > 0)
> group by a14.Vh_VhAll_group_id,
> a15.ITv_year_id
>

Query Performance

I get a massive bookmark in the execution plans when I run the below SQL to
return 23 rows of data...The volumens are as below. If I take out the
reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
and I get drastically improved performance. a11 is well indexed. A new index
was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] ON
[dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id]) ON [PRIMARY]
GO
and it has provided many other performance gains on a number of other pieces
of SQL. How do I begin to think about/code for this lack of performance.
Don't worry I don't expect you to understand the tables or business but if
any experiences have been overcome please post.
select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
select count(*) from prt_lu_product(nolock) -- Rows: 1719900
select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
select count(*) from ITv_lu_day(nolock) -- Rows: 4831
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
-- Duration: 0:05:02.00 - 23 rows
select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
a15.ITv_year_id year_id,
count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
a11.Policy_id end)) WJXBFS1
into #ZZT5J0300BKMD00J
from fat_bse_po_risk_detail a11
join prt_lu_product a12
on (a11.Product_id = a12.Product_id)
join POt_lu_policy a13
on (a11.Policy_id = a13.Policy_id)
join vht_lu_vehicle a14
on (a11.Vehicle_id = a14.Vehicle_id)
join ITv_lu_day a15
on (a11.Inception_date_id = a15.Inception_date_id)
where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a11.Tr_sub_type_id in (430, 433, 3530)
and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a12.Pr_Group_id in (2, 3)
and a11.f_Ren_Flag = '4'
and a11.Po_tr_bus_type_id > 0)
group by a14.Vh_VhAll_group_id,
a15.ITv_year_id
I get a massive bookmark in the execution plans when I run the below SQL to
return 23 rows of data...The volumens are as below. If I take out the
reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
and I get drastically improved performance. a11 is well indexed. A new index
was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] ON
[dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id]) ON [PRIMARY]
GO
and it has provided many other performance gains on a number of other pieces
of SQL. How do I begin to think about/code for this lack of performance.
Don't worry I don't expect you to understand the tables or business but if
any experiences have been overcome please post.
select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
select count(*) from prt_lu_product(nolock) -- Rows: 1719900
select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
select count(*) from ITv_lu_day(nolock) -- Rows: 4831
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
-- Duration: 0:05:02.00 - 23 rows
select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
a15.ITv_year_id year_id,
count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
a11.Policy_id end)) WJXBFS1
into #ZZT5J0300BKMD00J
from fat_bse_po_risk_detail a11
join prt_lu_product a12
on (a11.Product_id = a12.Product_id)
join POt_lu_policy a13
on (a11.Policy_id = a13.Policy_id)
join vht_lu_vehicle a14
on (a11.Vehicle_id = a14.Vehicle_id)
join ITv_lu_day a15
on (a11.Inception_date_id = a15.Inception_date_id)
where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a11.Tr_sub_type_id in (430, 433, 3530)
and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a12.Pr_Group_id in (2, 3)
and a11.f_Ren_Flag = '4'
and a11.Po_tr_bus_type_id > 0)
group by a14.Vh_VhAll_group_id,
a15.ITv_year_id
Marc,
reconstruct you query, not using a11.Tr_sub_type_id in (430, 433, 3530), but
use a union (all), each with its own a11.Tr_sub_type_id = condition.
Quentin
"marcmc" <marcmc@.discussions.microsoft.com> wrote in message
news:19F88AA4-D9D6-4B1C-BAAD-A8DE2259F182@.microsoft.com...
>I get a massive bookmark in the execution plans when I run the below SQL to
> return 23 rows of data...The volumens are as below. If I take out the
> reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark
> disappears
> and I get drastically improved performance. a11 is well indexed. A new
> index
> was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] ON
> [dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id]) ON [PRIMARY]
> GO
> and it has provided many other performance gains on a number of other
> pieces
> of SQL. How do I begin to think about/code for this lack of performance.
> Don't worry I don't expect you to understand the tables or business but if
> any experiences have been overcome please post.
>
> select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
> select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
> select count(*) from prt_lu_product(nolock) -- Rows: 1719900
> select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
> select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
> select count(*) from ITv_lu_day(nolock) -- Rows: 4831
> SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
> -- Duration: 0:05:02.00 - 23 rows
> select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
> a15.ITv_year_id year_id,
> count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
> a11.Policy_id end)) WJXBFS1
> into #ZZT5J0300BKMD00J
> from fat_bse_po_risk_detail a11
> join prt_lu_product a12
> on (a11.Product_id = a12.Product_id)
> join POt_lu_policy a13
> on (a11.Policy_id = a13.Policy_id)
> join vht_lu_vehicle a14
> on (a11.Vehicle_id = a14.Vehicle_id)
> join ITv_lu_day a15
> on (a11.Inception_date_id = a15.Inception_date_id)
> where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a11.Tr_sub_type_id in (430, 433, 3530)
> and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
> and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
> and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a12.Pr_Group_id in (2, 3)
> and a11.f_Ren_Flag = '4'
> and a11.Po_tr_bus_type_id > 0)
> group by a14.Vh_VhAll_group_id,
> a15.ITv_year_id
>
>
> I get a massive bookmark in the execution plans when I run the below SQL
> to
> return 23 rows of data...The volumens are as below. If I take out the
> reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark
> disappears
> and I get drastically improved performance. a11 is well indexed. A new
> index
> was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] ON
> [dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id]) ON [PRIMARY]
> GO
> and it has provided many other performance gains on a number of other
> pieces
> of SQL. How do I begin to think about/code for this lack of performance.
> Don't worry I don't expect you to understand the tables or business but if
> any experiences have been overcome please post.
>
> select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
> select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
> select count(*) from prt_lu_product(nolock) -- Rows: 1719900
> select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
> select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
> select count(*) from ITv_lu_day(nolock) -- Rows: 4831
> SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
> -- Duration: 0:05:02.00 - 23 rows
> select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
> a15.ITv_year_id year_id,
> count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
> a11.Policy_id end)) WJXBFS1
> into #ZZT5J0300BKMD00J
> from fat_bse_po_risk_detail a11
> join prt_lu_product a12
> on (a11.Product_id = a12.Product_id)
> join POt_lu_policy a13
> on (a11.Policy_id = a13.Policy_id)
> join vht_lu_vehicle a14
> on (a11.Vehicle_id = a14.Vehicle_id)
> join ITv_lu_day a15
> on (a11.Inception_date_id = a15.Inception_date_id)
> where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a11.Tr_sub_type_id in (430, 433, 3530)
> and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
> and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
> and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a12.Pr_Group_id in (2, 3)
> and a11.f_Ren_Flag = '4'
> and a11.Po_tr_bus_type_id > 0)
> group by a14.Vh_VhAll_group_id,
> a15.ITv_year_id
>

Query Performance

I get a massive bookmark in the execution plans when I run the below SQL to
return 23 rows of data...The volumens are as below. If I take out the
reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
and I get drastically improved performance. a11 is well indexed. A new index
was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtyp
e] ON
[dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id])
ON [PRIMARY]
GO
and it has provided many other performance gains on a number of other pieces
of SQL. How do I begin to think about/code for this lack of performance.
Don't worry I don't expect you to understand the tables or business but if
any experiences have been overcome please post.
select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
select count(*) from prt_lu_product(nolock) -- Rows: 1719900
select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
select count(*) from ITv_lu_day(nolock) -- Rows: 4831
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
-- Duration: 0:05:02.00 - 23 rows
select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
a15.ITv_year_id year_id,
count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
a11.Policy_id end)) WJXBFS1
into #ZZT5J0300BKMD00J
from fat_bse_po_risk_detail a11
join prt_lu_product a12
on (a11.Product_id = a12.Product_id)
join POt_lu_policy a13
on (a11.Policy_id = a13.Policy_id)
join vht_lu_vehicle a14
on (a11.Vehicle_id = a14.Vehicle_id)
join ITv_lu_day a15
on (a11.Inception_date_id = a15.Inception_date_id)
where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a11.Tr_sub_type_id in (430, 433, 3530)
and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a12.Pr_Group_id in (2, 3)
and a11.f_Ren_Flag = '4'
and a11.Po_tr_bus_type_id > 0)
group by a14.Vh_VhAll_group_id,
a15.ITv_year_idBookmark lookup means the index Query Optimizer uses does not contain the
columns needed in the query. I believe SQL is using the different index on
a11 table if you have "a11.Tr_sub_type_id in (430, 433, 3530)" in the WHERE
clause. One thing you can try is to add an index hint after the table name
in the FROM statement.
Is this why you posted the Index Tuning Wizard question?
"marcmc" wrote:

> I get a massive bookmark in the execution plans when I run the below SQL t
o
> return 23 rows of data...The volumens are as below. If I take out the
> reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappea
rs
> and I get drastically improved performance. a11 is well indexed. A new ind
ex
> was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subt
ype] ON
> [dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id
]) ON [PRIMARY]
> GO
> and it has provided many other performance gains on a number of other piec
es
> of SQL. How do I begin to think about/code for this lack of performance.
> Don't worry I don't expect you to understand the tables or business but if
> any experiences have been overcome please post.
>
> select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
> select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
> select count(*) from prt_lu_product(nolock) -- Rows: 1719900
> select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
> select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
> select count(*) from ITv_lu_day(nolock) -- Rows: 4831
> SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
> -- Duration: 0:05:02.00 - 23 rows
> select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
> a15.ITv_year_id year_id,
> count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
> a11.Policy_id end)) WJXBFS1
> into #ZZT5J0300BKMD00J
> from fat_bse_po_risk_detail a11
> join prt_lu_product a12
> on (a11.Product_id = a12.Product_id)
> join POt_lu_policy a13
> on (a11.Policy_id = a13.Policy_id)
> join vht_lu_vehicle a14
> on (a11.Vehicle_id = a14.Vehicle_id)
> join ITv_lu_day a15
> on (a11.Inception_date_id = a15.Inception_date_id)
> where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a11.Tr_sub_type_id in (430, 433, 3530)
> and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 12
0)
> and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
> and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a12.Pr_Group_id in (2, 3)
> and a11.f_Ren_Flag = '4'
> and a11.Po_tr_bus_type_id > 0)
> group by a14.Vh_VhAll_group_id,
> a15.ITv_year_id
>
>
>

Query Performance

I get a massive bookmark in the execution plans when I run the below SQL to
return 23 rows of data...The volumens are as below. If I take out the
reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
and I get drastically improved performance. a11 is well indexed. A new index
was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] O
N
[dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id])
ON [PRIMARY]
GO
and it has provided many other performance gains on a number of other pieces
of SQL. How do I begin to think about/code for this lack of performance.
Don't worry I don't expect you to understand the tables or business but if
any experiences have been overcome please post.
select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
select count(*) from prt_lu_product(nolock) -- Rows: 1719900
select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
select count(*) from ITv_lu_day(nolock) -- Rows: 4831
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
-- Duration: 0:05:02.00 - 23 rows
select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
a15.ITv_year_id year_id,
count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
a11.Policy_id end)) WJXBFS1
into #ZZT5J0300BKMD00J
from fat_bse_po_risk_detail a11
join prt_lu_product a12
on (a11.Product_id = a12.Product_id)
join POt_lu_policy a13
on (a11.Policy_id = a13.Policy_id)
join vht_lu_vehicle a14
on (a11.Vehicle_id = a14.Vehicle_id)
join ITv_lu_day a15
on (a11.Inception_date_id = a15.Inception_date_id)
where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a11.Tr_sub_type_id in (430, 433, 3530)
and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a12.Pr_Group_id in (2, 3)
and a11.f_Ren_Flag = '4'
and a11.Po_tr_bus_type_id > 0)
group by a14.Vh_VhAll_group_id,
a15.ITv_year_id
I get a massive bookmark in the execution plans when I run the below SQL to
return 23 rows of data...The volumens are as below. If I take out the
reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark disappears
and I get drastically improved performance. a11 is well indexed. A new index
was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype] O
N
[dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id])
ON [PRIMARY]
GO
and it has provided many other performance gains on a number of other pieces
of SQL. How do I begin to think about/code for this lack of performance.
Don't worry I don't expect you to understand the tables or business but if
any experiences have been overcome please post.
select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
select count(*) from prt_lu_product(nolock) -- Rows: 1719900
select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
select count(*) from ITv_lu_day(nolock) -- Rows: 4831
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
-- Duration: 0:05:02.00 - 23 rows
select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
a15.ITv_year_id year_id,
count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
a11.Policy_id end)) WJXBFS1
into #ZZT5J0300BKMD00J
from fat_bse_po_risk_detail a11
join prt_lu_product a12
on (a11.Product_id = a12.Product_id)
join POt_lu_policy a13
on (a11.Policy_id = a13.Policy_id)
join vht_lu_vehicle a14
on (a11.Vehicle_id = a14.Vehicle_id)
join ITv_lu_day a15
on (a11.Inception_date_id = a15.Inception_date_id)
where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a11.Tr_sub_type_id in (430, 433, 3530)
and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
and a12.Pr_Group_id in (2, 3)
and a11.f_Ren_Flag = '4'
and a11.Po_tr_bus_type_id > 0)
group by a14.Vh_VhAll_group_id,
a15.ITv_year_idMarc,
reconstruct you query, not using a11.Tr_sub_type_id in (430, 433, 3530), but
use a union (all), each with its own a11.Tr_sub_type_id = condition.
Quentin
"marcmc" <marcmc@.discussions.microsoft.com> wrote in message
news:19F88AA4-D9D6-4B1C-BAAD-A8DE2259F182@.microsoft.com...
>I get a massive bookmark in the execution plans when I run the below SQL to
> return 23 rows of data...The volumens are as below. If I take out the
> reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark
> disappears
> and I get drastically improved performance. a11 is well indexed. A new
> index
> was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype]
ON
> [dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id
]) ON [PRIMARY]
> GO
> and it has provided many other performance gains on a number of other
> pieces
> of SQL. How do I begin to think about/code for this lack of performance.
> Don't worry I don't expect you to understand the tables or business but if
> any experiences have been overcome please post.
>
> select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
> select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
> select count(*) from prt_lu_product(nolock) -- Rows: 1719900
> select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
> select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
> select count(*) from ITv_lu_day(nolock) -- Rows: 4831
> SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
> -- Duration: 0:05:02.00 - 23 rows
> select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
> a15.ITv_year_id year_id,
> count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
> a11.Policy_id end)) WJXBFS1
> into #ZZT5J0300BKMD00J
> from fat_bse_po_risk_detail a11
> join prt_lu_product a12
> on (a11.Product_id = a12.Product_id)
> join POt_lu_policy a13
> on (a11.Policy_id = a13.Policy_id)
> join vht_lu_vehicle a14
> on (a11.Vehicle_id = a14.Vehicle_id)
> join ITv_lu_day a15
> on (a11.Inception_date_id = a15.Inception_date_id)
> where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a11.Tr_sub_type_id in (430, 433, 3530)
> and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
> and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
> and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a12.Pr_Group_id in (2, 3)
> and a11.f_Ren_Flag = '4'
> and a11.Po_tr_bus_type_id > 0)
> group by a14.Vh_VhAll_group_id,
> a15.ITv_year_id
>
>
> I get a massive bookmark in the execution plans when I run the below SQL
> to
> return 23 rows of data...The volumens are as below. If I take out the
> reference to a11.Tr_sub_type_id in (430, 433, 3530), the bookmark
> disappears
> and I get drastically improved performance. a11 is well indexed. A new
> index
> was to add the CREATE UNIQUE CLUSTERED INDEX [IX_TRt_lu_Trans_Subtype]
ON
> [dbo].[TRt_lu_Trans_Subtype]([Tr_sub_type_id], [Tr_type_id
]) ON [PRIMARY]
> GO
> and it has provided many other performance gains on a number of other
> pieces
> of SQL. How do I begin to think about/code for this lack of performance.
> Don't worry I don't expect you to understand the tables or business but if
> any experiences have been overcome please post.
>
> select count(*) from fat_bse_po_risk_detail(nolock) -- Rows: 11674571
> select count(*) from POt_lu_policy(nolock) -- Rows: 2967597
> select count(*) from prt_lu_product(nolock) -- Rows: 1719900
> select count(*) from TRt_lu_Trans_Subtype(nolock) -- Rows: 9326
> select count(*) from vht_lu_vehicle(nolock) -- Rows: 3154009
> select count(*) from ITv_lu_day(nolock) -- Rows: 4831
> SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
> -- Duration: 0:05:02.00 - 23 rows
> select a14.Vh_VhAll_group_id Vh_VhAll_group_id,
> a15.ITv_year_id year_id,
> count(distinct(case when a12.Pr_Group_id = 5 then a11.Vehicle_id else
> a11.Policy_id end)) WJXBFS1
> into #ZZT5J0300BKMD00J
> from fat_bse_po_risk_detail a11
> join prt_lu_product a12
> on (a11.Product_id = a12.Product_id)
> join POt_lu_policy a13
> on (a11.Policy_id = a13.Policy_id)
> join vht_lu_vehicle a14
> on (a11.Vehicle_id = a14.Vehicle_id)
> join ITv_lu_day a15
> on (a11.Inception_date_id = a15.Inception_date_id)
> where (a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a11.Tr_sub_type_id in (430, 433, 3530)
> and a11.Inception_date_id >= CONVERT(datetime, '2003-04-01 00:00:00', 120)
> and a11.Inception_date_id < CONVERT(datetime, '2005-04-01 00:00:00', 120)
> and a13.Po_corp_unit_id in ('GEI', 'GNI', 'GED')
> and a12.Pr_Group_id in (2, 3)
> and a11.f_Ren_Flag = '4'
> and a11.Po_tr_bus_type_id > 0)
> group by a14.Vh_VhAll_group_id,
> a15.ITv_year_id
>