This is something that's bugged me though has never caused any real issues as I can generally locate this information by other means, but can someone explain why
NULL may be returned in the
number columns from the
sys.dm_exec_sql_text DMV, yet yield results in the
text column? I understand why output would return inversely (e.g. all columns but
text would yield data), but I've seen this behavior a number of times across a number of SQL Server versions and the documentation doesn't seem to imply this should be possible, or I'm just reading it wrong.
Here's an example of the query I'm running:
SELECT TOP 100 t.* , s.* , c.* FROM sys.dm_exec_query_stats s LEFT JOIN sys.dm_exec_connections c ON c.most_recent_sql_handle = s.sql_handle CROSS APPLY sys.dm_exec_sql_text(s.sql_handle) t WHERE s.execution_count > 1 AND DATEDIFF (second, creation_time, GETDATE()) > 0 AND t.dbid IS NULL
Here's a sample of one of the results from the
text column which implies this isn't related to temporary objects which is what I would normally guess to be the cause.
select * from [dbo].[Map_ProviderSpecialty]
What situation is occurring where these columns are returning