Several months ago someone commented on a calendar thread that you should not even try to calculate Easter in SQL Server because the math was too hard. That got me to thinking and I decided to see if that was actually the case. I found that there are several well known algorithms available - but […]
2020-04-06 (first published: 2020-03-31)
5,195 reads
Know who all the individual group members are for a given WINDOWS_GROUP login. This script uses the sys.xp_logininfo procedure to find group members for each login on an instance. This is useful when attempting to remove orphaned WINDOWS_LOGINS. May have issues working across your logged in domain.
2020-03-23 (first published: 2020-03-13)
1,625 reads
Easily graph your storage needs based on msdb backup data recorded automatically, no matter what your backup solution is.
2020-03-17 (first published: 2020-03-10)
1,712 reads
This script will find all orphaned users on all databases on an instance, and generate a script to drop each user. Simply execute, copy the values from the DropScript column to a new SSMS window and execute. There are two risks with this script. Use with caution: This script attempts to take into account users […]
2020-03-16 (first published: 2020-03-13)
1,357 reads
The script searches through every column of every record in a database to find a value. It works with numbers too. Simply assign a value to @MyString. Indicate what datatype(s) you wish to search through, and indicate if you want wildcards, and execute. The search is smart and will only search through columns where @MyString is […]
2020-03-05 (first published: 2020-03-02)
1,178 reads
This script finds auto created statistics that duplicate existing stats generated by indexes, and may help to speed up your statistics maintenance. Copy the results from the DropScript column to a new SSMS tab and execute.
2020-02-21
525 reads
This script returns a list of all the fields of a table with it properties, primary keys and user defined types.
2020-01-21 (first published: 2014-04-30)
1,729 reads
Dropping database in RDS follows different method than dropping the database in local SQL Server. Below is the command to DROP the database in Amazon RDS EXECUTE msdb.dbo.rds_drop_database N'demodb' GO However when the SQL Server is configured with Multi-zone mirroring, then you need to set the partner to OFF and drop all active connections and […]
2020-01-17
3,828 reads
2019-12-20 (first published: 2019-12-10)
2,112 reads
T-SQL script to purge all the tables including foreign key references. The script has been made smart enough to use TRUNCATE wherever there is no foreign key reference and to use DELETE wherever there is foreign key reference.
2019-12-10
2,612 reads
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
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Comments posted to this topic are about the item How We Handled a Vendor...
I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers