Scripts

Technical Article

Performance problem in SQL Server 2005

I have written stored procedure which simply read each row one by one and update the some column in same table.SP is running fine in SQL Server 2000 and completed within 5 minutes (around 5 million rows)But same SP in SQL Server 2005, its taking around more than one hour (for same number of rows)Note: […]

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2007-07-16

521 reads

Technical Article

Running Sum Query

Sometimes you need to calculate a running sum. Uses of this include adding a Month-To-Date column to a query of recent orders. I haven't seen anyone publish how to do this before (using this method).This query works by using the Row_Number() function and recursive query capability of SQL 2005.

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2007-07-16

547 reads

Technical Article

User Tables with Size  all DBs (SQL 2005 Only)

Hope this is helpful to someone.  This script will create a table and a stored procedure in the master database to gather and store table info for all datbases. The sp uses a temp table to hold the results returned by sp_spaceused, then transfers the information to the permanent table DatabaseTableSizes and adds the database […]

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2007-07-16 (first published: )

289 reads

Technical Article

Analyse tables for replication ( sql 2000 )

I have a requirement deploy transactional replication for an existing database which wasn't designed with replication in mind. I need to script/deploy based upon PK's, identity columns and timestamp columns. This query allows me to gather and save the information enabling me to generate the various scripts to replicate my database, replication through T SQL […]

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2007-07-12 (first published: )

796 reads

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Question of the Day

Getting the Average

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       NULL
All 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