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All versions of Microsoft SQL Server (not MySQL). Please also add a version-specific tag, like sql-server-2016, since it is often relevant to the question.

0 votes
2 answers
300 views

database design storing historical information

I have this database table Templates and I need to keep historical information. So in code what I am doing is inserting a new row with the updated data and then setting the IsCurrentVersion flag to f …
Jefferson's user avatar
0 votes
2 answers
2k views

stored procedure case statement

I am building this where condition by concatenating the @whereClause variable in my stored procedure. At this point I am using the case to add additional values. if there a better way to do this? SET …
Jefferson's user avatar
0 votes
0 answers
33 views

User profile keeping old records and add endDate

I have this table CustomerProfile that has the CustomerId, ProfileId,startDate and endDate. When the user add data to the profile it will insert a record with a startDate and endDate is null. If the u …
Jefferson's user avatar
2 votes
2 answers
701 views

Compare two table and update with endDate

I have two table CustomerProfile and NewData. The CustomerProfile has CustomerId,ProfileId,startDate and endDate. The NewData table is new data that is coming in just has the ProfileId.I create a temp …
Jefferson's user avatar
-1 votes
1 answer
161 views

Cluster Index Scan 96%

I am seeing this Cluster Index Scan at 96% and I am not sure why that is? In the table I have a clustered index on the PK and a non-clustered on the where condition so should this being using the non …
Jefferson's user avatar
2 votes
1 answer
135 views

Date time cast preferred method

What would be the preferred method for speed and less database stress using a between or less than? SELECT LogId FROM [Master].[dbo].log mlog WHERE cast(LogDate as Date) BETWEEN '2019-01-01' AND '2019 …
Jefferson's user avatar
0 votes
1 answer
301 views

query bad performance

Is there anything I can do to improve this query performance? I have included the execution plan and the Server Profiler output. Is there a index that can help? I see there is a Index Seek that is ta …
Jefferson's user avatar
3 votes
1 answer
135 views

Temp tables streamline query

I am trying to get to the Customer table from data in the SiteConfiguration table. I am getting the data and setting it to @AdditionalVoteViewers, which would be a string of emails address. I then spl …
Jefferson's user avatar