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Tip of the Day
Language: SQL
Expertise: Intermediate
Oct 26, 2017

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


Identifying Unused Tables with T-SQL

You can identify unused Tables in the following way:

; with Unused (TableName , RowCount, DateCreated, DateModified)

AS (

SELECT unusedTable.name AS TableName

,PS.row_count AS RowCount

,unusedTable.create_date AS DateCreated

,unusedTable.modify_date AS DateModified

FROM sys.all_objects UnusedTable

JOIN sys.dm_db_partition_stats PS ON OBJECT_NAME(PS.object_id)=unusedTable.name

WHERE unusedTable.type ='U'

AND NOT EXISTS (SELECT OBJECT_ID

FROM sys.dm_db_index_usage_stats

WHERE OBJECT_ID = unusedTable.object_id )

)

SELECT TableName , RowCount, DateCreated, DateModified

FROM Unused

ORDER BY RowCount
Hannes du Preez
 
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