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Calculating and Verifying Check Digits in T-SQL

A lot of numbers that we use everyday such as Bank Card numbers, Identification numbers, and ISBN codes, have check digits. As part of the routine data cleansing of such codes we must check that the code is valid- but do we? Dwain Camps shows how it can be done in SQL in such a way that it could even be used in a constraint, and keep bad data out of the database.

2014-07-23

12,368 reads

Technical Article

SQL Saturday #302 - Albany

SQL Saturday is coming to Albany, NY on July 26, 2014. This is a free full day of training and networking for SQL Server professionals. This event also features a paid-for precon session with Grant Fritchey on query performance tuning. The event is soon so register while space is available.

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2014-07-16

9,085 reads

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Question of the Day

Hyperscale Replicas I

What types of secondary replicas are available for the Azure SQL Database Hyperscale edition?

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