Finding duplicates - CROSS APPLY vs ROW_NUMBER vs other …
May 21, 2020 · The idea is to mark all extra dups with some flag leaving one row unmarked. Do you suggest to add something like string_aggregate into the query to get all possible duplicate IDs? In …
SQL 2000 - How to avoid Table Scan in simple Select query
Aug 13, 2014 · we have one of SQL 2000 Server which is supporting Old application. one of select query get blocked mostly once in week some how. and it is simple select query.
Problem with DB2 Server OpenQuery - social.msdn.microsoft.com
Feb 9, 2017 · Also, talk to the DB2 people at your organization and verify tat DB2 indeed uses 3-part naming scheme, and that you get the three parts correctly. I.e., DB2, DB2INST1 and TABLE_NAME …
SSRS and Large Oracle Dataset with Read-Only
Apr 6, 2012 · My SQL experience is advanced plus, so my query is as optimized as possible using all the typical optimization techniques. The query is painfully slow when running in DbVis) when …
Reg:THREADPOOL Wait Type.. - social.msdn.microsoft.com
Oct 1, 2018 · On SQL 2016 and later, Query Store is a great asset. On earlier versions, sys.dm_exec_query_stats can help, but data may also have to be collected by Trace or Extended …
How to create SSIS package dynamically for inserting data from flat ...
Oct 22, 2015 · Something like read the first row i.e. header of the csv file and build the dyanic query which would have the table script with columns from csv file. You would have to assume default …
CTE query speed it up somehow? - social.msdn.microsoft.com
Nov 28, 2017 · If above does not speed up the query .insert into the result of CTE into a temporary table and then delete from theAlarmHistoryLog JOIN #tmp BASED on cfriteria
Unable to copy database with different name in the same instance
Nov 17, 2014 · Yes. You can run the above query to change database back to multi user mode, another alternative query is as follows. When specifying WITH ROLLBACK IMMEDIATE in the ALTER …
check if a table exists in SQL 2005 - social.msdn.microsoft.com
Sep 30, 2012 · I'm trying to check if a certain table exists in a given database on a SQL 2005 Server.
optimizer incorrectly does clustered index scan instead of seek
May 10, 2013 · The query can take much longer (depending on what the max value actually is). It appears to do a clustered index scan (partial) , from the criteria point of 2.9Bil all the way to the max. …