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
833 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
864 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
595 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
728 reads
procedure is an extended xp called xp_getNetName to get the computer network identifcation name
2002-07-18
785 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
1,096 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
1,380 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
671 reads
Alternate method for generating a rowset with all of the numbers in a specified range.
2002-07-11
430 reads
A RAG pipeline that answers questions in the demo is not the same thing...
By Steve Jones
“A multitude of bad ideas is necessary for one good idea” – from Excellent...
Yesterday I gave a talk for MSSQLTips called “Building a DBA Agent for Your...
Comments posted to this topic are about the item Adding new column with DEFAULT
I've got a web application for my side business. I've added a SQL Server...
Comments posted to this topic are about the item Looking for New Blood
Which number will the COUNT() return after executing the following statements:
DROP TABLE IF EXISTS #test; CREATE TABLE #test (id INT) INSERT INTO #test (id) SELECT * FROM GENERATE_SERIES(1, 3) AS gs ; ALTER TABLE #test ADD flag BIT CONSTRAINT DF_#test_flag DEFAULT 0; go UPDATE #test SET flag = 0 WHERE id = 1 UPDATE #test SET flag = 1 WHERE id = 2 INSERT INTO #test (id) VALUES (4) SELECT COUNT(*) FROM #test AS t WHERE flag = 0See possible answers