Big transactions cause the Tlog to grow.When you do a clean of a large table, the delete statement can cause a very long transactionSometimes it's necessary to prevent this.So we divide one big delete into several little ones.A table with call centre data gets +/- 1-mlj records a day. Every day we run a script […]
2002-08-27
827 reads
Assuming we have the following table (that stores hierarchical data) :CREATE TABLE [staff] ( [employee] [int] NOT NULL , [employee_name] [varchar] (10) NULL , [supervisor] [int] NULL , PRIMARY KEY CLUSTERED ( [employee] ) ON [PRIMARY] , FOREIGN KEY ( [supervisor] ) REFERENCES [staff] ( [employee] ))I ‘ll built a […]
2002-08-23
847 reads
This article shows you how to design the storage for email addresses, how to validate email addresses, how to retrieve demographic information from email addresses efficiently, using computed columns and indexes. It also covers the security aspect of dealing with email addresses.
2002-08-01
1,340 reads
2002-07-19
581 reads
a Basic example of how to manipulate an IDENTITY COLUMN AN HOW TO STOP the automatic counting using SET IDETNTITY_INSERT
2002-07-18
713 reads
procedure is an extended xp called xp_getNetName to get the computer network identifcation name
2002-07-18
775 reads
THERE is an extended sp called xp_fileexists given a full path to a file Name information is a 3 Bit vector 0/1 if a file doesn't/does exist0/1 is given name is a directory0/1 if the parent directory exists
2002-07-18
1,088 reads
this procedure gets a tableName,X axis column, Y axis column and a Value and draw a Pivot table from the Original Table Script also include an How to Use section
2002-07-15
1,361 reads
This SELECT will give you a summarized report for the options selected for ALL the databases on your SQL Server. It's compatible with versions 7 and 2000.
2002-07-11
656 reads
Alternate method for generating a rowset with all of the numbers in a specified range.
2002-07-11
421 reads
By Steve Jones
I don’t have SQL Server installed on my laptop. In an effort to keep...
Slow-running queries can degrade your Redshift cluster’s performance and lead to increased costs. Identifying...
By gbargsley
If you've been here before, you know this blog is usually about SQL Server,...
Hi all Can I get some perspective from the community please on performing in-place...
Comments posted to this topic are about the item How Long is a Long...
Comments posted to this topic are about the item T-SQL Trigonometric Functions in SQL...
In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?
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