Joseph Gama


Technical Article

Find a string in Procedures, Triggers, etc

I want to thank James Travis for his original and excellent work and to Razvan Socol for alerting about a similar problem that led me to improve James' code. The problem is that when searching for a word that is split between two 8kb blocks, James' code would ignore it. The solution is to look […]

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2004-02-21

164 reads

Technical Article

UDF Luhn's formula-credit card number validation

This UDF will validate a credit card number using Luhn's formula.For example 49927398716 will return 1:print dbo.luhn('49927398716')print dbo.luhn(49927398716)11based on:Credit cards, validation and the Luhn formulabyEduardo Chaveshttp://www.webdevelopersjournal.com/articles/validation.htmlAlgorithm converted to TSQL by Joseph Gama

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2002-12-12

543 reads

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Adding and Dropping Columns II

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Question of the Day

Adding and Dropping Columns II

I have this table in my SQL Server 2022 database:

CREATE TABLE [dbo].[CityList]
(
[CityNameID] [int] NOT NULL IDENTITY(1, 1),
[CityName] [varchar] (30) ,
[Country2] [char] (3),
[stateprovince2] [char] (2),
[Country] [char] (3),
[stateprovince] [char]
) ON [PRIMARY]
GO
I decide to drop the stateprovince2 and country2 columns. What code should I use?

See possible answers