Questions tagged [recompile]
The recompile tag has no usage guidance.
17
questions
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SQL Server 2014 Cardinality Estimator estimate final number of rows after OUTER JOIN is less than number of rows from initial table
I have a [SQL query] for SQL Server 2019.
It works fine with option
(USE HINT ('FORCE_LEGACY_CARDINALITY_ESTIMATION'))
and very bad without this hint.
I found out, that SQL Server 2014 Cardinality ...
0
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1
answer
552
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Difference between with recompile and Option(recompile)
I've read online that with recompile will recompile the whole procedure whereas Option(recompile) will only the recompile a specific statement that it is used on. If a certain statement in the ...
- 11
4
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1
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181
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Execution plan with a lot of ComputeScalar operations
I executed the same query with and without OPTION (RECOMPILE). When I compare the 2 plans, visually the one main difference I see is that the plan without option recompile shows a lot of ComputeScalar ...
- 368
8
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1
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1k
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Why does OPTION RECOMPILE cause a predicate pushdown?
I have a SQL query that is made out of a nested mess of views and table-valued functions going on for at least 4 levels deep (I didn't have the time or patience to go through it all, it's hundreds of ...
- 943
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2
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149
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Oracle 12cR2 RAC - ORA-06508
Environment:
DB Version: Oracle Database 12cR2 EE on Exadata
RAC: True
Problem: ORA-06508 on procedure.
One of our users had a DBA role privilege, we don't want such a big
privilege to be defined ...
- 29
5
votes
2
answers
493
views
Why does SQL Server not perform constant (UNION ALL) branch elimination with OPTION(RECOMPILE) when selecting the result into a scalar variable?
We use some 'aggregate' views to select from multiple tables using a discriminator (note: these views are not partitioned views, because the discriminator is not in the base tables). This normally ...
- 195
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59
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Does SQL Server really require fully qualified object references to match a statement to a cached execution plan [duplicate]
From SQL Server Docs, section Execution Plan Caching and Reuse:
The algorithms to match new SQL statements to existing, unused execution plans in the cache require that all object references be fully ...
- 165
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44
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can't find column stats for newly created table
I am trying to simulate a plan recompilation due to auto update stats which is triggered when threshold(500 + 20 percent modifications) reached.
database current settings are:
I started with ...
- 1,233
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69
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Does plan recompilation happens to plan guide?
Does plan recompilation happens for plan guide due to the, for example, auto update stats?
P.S Do not take into account adding a hint OPTION (RECOMPILE) in the plan guide
- 1,233
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43
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Pull out top stored procs with high recompile rate
Is there any other easy way other than running profiler that I can pull out the worst offending stored procs with high recompiles?
Any helpful DMVs?
1
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2
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185
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Why does this stored proc cause a clustered index scan, but seek when using OPTION RECOMPILE?
I think I may know the answer based on my research, but am looking for confirmation on how/why the engine compiles the plan the way it does with
Parameters being passed in:
@ID int
,@OtherID INT
...
- 193
1
vote
2
answers
496
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Is it normal to UPDATE STATISTICS this frequently? [duplicate]
I have a stored procedure that processes data from a source table and is executed many times (about 20,000 executions) throughout the day.
I believe it's getting choked up sometimes, due to parameter ...
- 31.9k
3
votes
1
answer
135
views
Parameterized Plan Flushed
I cannot find documentation anywhere on what would trigger this recompilation reason. We are investigating a sudden query performance drop and the only thing that I can think of is that the plan got ...
- 33
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2k
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utlrp.sql fails to execute
I just created a docker image of Oracle 11g ee following this tutorial https://vitalflux.com/how-to-install-oracle-11g-ee-on-docker/ and loaded some tables inside.
The process worked fine and no ...
1
vote
1
answer
380
views
RECOMPILE function
We had a production level event over the weekend where execution of a function suddenly went from MS to nearly a minute.
Unfortunately, SQL wasn't able to execute the ALTER Function and it kept '...
- 13
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2
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435
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Compile Dynamic Sql before Running
I have a table, and want to test if dynamic sql will compile.
Example:
create Table dbo.Product
(
ProductId int,
ProductName varchar(255)
)
This will succeed: Column Name exists
declare ...
user162241
1
vote
2
answers
94
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SQL Server Execution Plan on server level
Case: I have application which is doing search from database. That is going very slowly (more than 40 seconds). With trace I caught a query. When I run query in SSMS, it takes 2-3 seconds, but when I ...
- 454