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SQL SERVER – 2005 Comparison EXCEPT operator vs. NOT IN

Pinal Dave
SQL Tips and Tricks
SQL Index, SQL Operator, SQL Scripts, SQL Server

The EXCEPT operator returns all of the distinct rows from the query to the left of the EXCEPT operator when there are no matching rows in the right query. The EXCEPT operator is equivalent of the Left Anti Semi Join. EXCEPT operator works the same way NOT IN. EXCEPTS returns any distinct values from the query to the left of the EXCEPT operand that do not also return from the right query.

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SQL SERVER – Top 15 free SQL Injection Scanners – Link to Security Hacks

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks, SQLAuthority News
SQL Download, SQL Server Security
SQL injection is a technique for exploiting web applications that use client-supplied data in SQL queries, but without first stripping potentially harmful characters. Checking for SQL Injection vulnerabilities involves auditing your web applications and the best way to do it is by using automated SQL Injection Scanners. Security-Hacks.com compiled a…
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SQL SERVER – Script/Function to Find Last Day of Month

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks
SQL DateTime, SQL Function, SQL Scripts, SQL Utility
Following query will find the last day of the month. Query also take care of Leap Year. Script: DECLARE @date DATETIME SET @date='2008-02-03' SELECT DATEADD(dd, -DAY(DATEADD(m,1,@date)), DATEADD(m,1,@date)) AS LastDayOfMonth GO DECLARE @date DATETIME SET @date='2007-02-03' SELECT DATEADD(dd, -DAY(DATEADD(m,1,@date)), DATEADD(m,1,@date)) AS LastDayOfMonth GO ResultSet: LastDayOfMonth ----------------------- 2008-02-29 00:00:00.000 (1 row(s) affected)…
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SQL SERVER – 2005 Understanding Trigger Recursion and Nesting with examples

Pinal Dave
SQL, SQL Performance, SQL Server, SQL Tips and Tricks
SQL Scripts, SQL Server Security, SQL Stored Procedure, SQL Trigger
Trigger events can be fired within another trigger action. One Trigger execution can trigger even on another table or same table. This trigger is called NESTED TRIGGER or RECURSIVE TRIGGER. Nested triggers SQL Server supports the nesting of triggers up to a maximum of 32 levels. Nesting means that when…
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