alzdba

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Technical Article

help to tighten use of  cmdshell  or sp_start_job

-- The goal is to avoid the use of sp_start_job in an application. So we have the application use RAISERROR to activate the job.--  1) because you can only start jobs you own--  2) we don't want to open the cmdshell to everyone--  3) we want control regarding jobs that run on our server.--  4) […]

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2007-05-31 (first published: )

2,150 reads

Technical Article

Detect invalid FK-data after using "WITH NOCHECK"

In situations where FK's have been created using the "WITH NOCHECK" option you can get into troubles because the FK-data is not checked ! (so there may be invalid data in the FK-column !)E.g. ALTER TABLE [dbo].[mytable] WITH NOCHECK add constraint [FK__USED_RESO__Actio__1162CF5F] FOREIGN KEY ( Action_Type ) REFERENCES [dbo].[Action_Types] ( Action_Type ) BOL states "... […]

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2007-05-29 (first published: )

537 reads

Technical Article

VB.Net support from your SQLServer DBA

Once devs are pushed toward using parameters, they get confused as to why their sp is not reused and has many compilations when in use.The reason is most of the time, that the parameters are defined with a wrong datatypemapping in the application or have different datatypes in a # of applications.I use this proc […]

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2006-02-16 (first published: )

299 reads

Technical Article

Intervention system for runaway jobs

Some of my developers had created jobs that executed VB applications that never ended. Aparently they could not figure out when, why and what was going wrong. They could not repro the situation.Now I've created this litle system so the users can assign max elaps times for their jobs. These jobs will then be intercepted […]

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2003-03-04

470 reads

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Question of the Day

The Updated Columns List

I have this table in SQL Server 2022:

CREATE TABLE CustomerLarge
  (CustomerID               INT NOT NULL IDENTITY(1, 1) CONSTRAINT CustomerLargePK PRIMARY KEY CLUSTERED
 , CustomerName             VARCHAR(20)
 , CustomerContactFirstName VARCHAR(40)
 , CustomerContactLastName  VARCHAR(40)
 , Address                  VARCHAR(20)
 , Address2                 VARCHAR(20)
 , City                     VARCHAR(20)
 , CountryCode              CHAR(3)
 , Postal                   VARCHAR(20)
)
GO
If I check the columns_updated() function return in a trigger, what is the data returned?

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