I‌ wanted to run a stored proc over 500 databases in production.

Question

I‌ wanted to run a stored proc over 500 databases in production.

Ed7

SSCrazy Eights

Points: 8516
More actions
March 11, 2019 at 2:44 pm

#377671

Hello Room,
I'm not hundred percent sure on how to program in T-SQL.
I wanted to run a stored proc over 500 databases in production.
and, the stored procedures will detect the expensive stored proc on each user databases :
SELECT
p.name AS [SP Name],
qs.total_logical_reads AS [TotalLogicalReads],
qs.total_logical_writes AS [TotalLogicalWrites],
qs.execution_count,
qs.total_elapsed_time,
qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time],
qs.cached_time
FROM sys.procedures AS p
INNER JOIN sys.dm_exec_procedure_stats AS qs
ON p.[object_id] = qs.[object_id]
WHERE qs.database_id = DB_ID()
AND qs.total_logical_reads > 0
ORDER BY qs.total_logical_reads DESC;
GO
Questions:
How can I can an automation to run or execute my stored proc on all 500 databases and store the output into a table?
I created a table called TopExpensiveSPs.
create table dbo.TopExpensiveSPs (
    ID                    INT                IDENTITY(1,1),
    SP_Name                VARCHAR(150)    NOT NULL,
    TotalLoficalReads    INT                NOT NULL,
    TotalLogicalWrite    smallINT        NOT NULL,
    Execution_Count        smallInt        NOT NULL,
    Total_ElapseTime    INT                NOT NULL,
    AvgElapseTime        INT                NOT NULL,
    Date                Date            NOT NULL
)

Would someone please help.
Thank you in advance for all your kind helps.
Best regards,
Edwin

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Lowell SSC Guru Points: 323504 More actions · Answer 1

procedure stats is server wide, but your JOIN and WHERE statement limits it to the current database context.
a minor tweak to use built in finctions and you can get all the results from all databases

SELECT db_name(qs.database_id) AS DatabaseName, OBJECT_SCHEMA_NAME(qs.object_id,qs.database_id) AS [SP Schema], OBJECT_NAME(qs.object_id,qs.database_id) AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], qs.total_logical_writes AS [TotalLogicalWrites], qs.execution_count, qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], qs.cached_time FROM sys.dm_exec_procedure_stats AS qs WHERE 1=1 --AND qs.database_id = DB_ID() AND qs.total_logical_reads > 0 ORDER BY qs.total_logical_reads DESC; GO GO

Lowell

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fahey.jonathan Hall of Fame Points: 3617 More actions · Answer 2

I know the question has been answered, and the solution in this case did not need to run a statement on every database. However, that functionality is sometimes needed, and there are several ways to get that done. I'm linking to an article on one person's solution because I thought it was good:
https://www.mssqltips.com/sqlservertip/2201/making-a-more-reliable-and-flexible-spmsforeachdb/

Grant Fritchey SSC Guru Points: 398690 More actions · Answer 3

Lowell's fix is awesome (as usual).

However, if you do find that you want to run something across all databases, or across all servers, I strongly recommend learning Powershell. Best of all, you don't have to learn everything because there are the DBA Tools that make all this easier.

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