A Few Mathematical UDFs
Alexander Chigrik presents a few Math UDFs he has developed for common functions.
2001-10-09
6,035 reads
T-SQL
Disable and Enable Keys (with some validation)
Here are two stored procedures for enabling and disabling all keys (primary and foreign) for a specified database. It makes sure the database specified is not the system databases and the users session is at the DB to have its keys enables/disabled.
2001-09-19
855 reads
Handling Delimited Strings in T-SQL
There may be cases where you want to work with delimited strings in T-SQL. Following two examples will cover most of the stuff that you will face while working with strings.
2001-09-01
3,184 reads
Optimize Character Field Usage
This stored procedure was designed to scan all your character based columns in a particular database and show the minimum, maximum and average data length. As well as give an efficiency rating of the data stored. Input: None Output: Table name, Column name, Defined datatype and length, Average length of data for that column, Minimum […]
2001-08-10
1,699 reads
Generate Insert Statements Easily
This script will generate insert statements for the given tables. You can pass the tables names, separated by commas, into sp_DataAsInsCommand stored procedure as in the example below: EXEC sp_DataAsInsCommand 'employee,titleauthor,pub_info' Updated on 5/25/01 to correct an issue with columns that are short like a column defined as char(1), to correct another issue with the […]
2001-08-09
4,657 reads
Tame Those Strings Part 6 - Bending Results
Continuing with Steve Jones series on string manipulation, this article looks at an interesting facet of the SELECT operator.
2026-02-05 (first published: 2001-07-04)
8,964 reads
Find The First Row
Ever needed to find the first occurrance of some data. This article looks at T-SQL querying for data in natural order.
2001-06-29
12,695 reads
ANSI Joins
Are you confused by all this inner join style syntax that is becoming more and more prominent lately? This article by Neil Boyle will help you find your footing in the ANSI join syntax.
2001-05-29
10,692 reads
Blogs
How AgentDBA Identifies Backup Failures
By Arun Sirpal
Every DBA has a box like this. Sitting untouched for months. Nobody’s proud of...
AI Helps Me with My Sloppiness
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
WITH clause gets a 26ai boost!
By way of background, a while back I did video called “My New Favourite...
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
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 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