SQL Performance Archives - Page 91 of 100 - SQL Authority with Pinal Dave

SQL SERVER – 2005 – Forced Parameterization and Simple Parameterization – T-SQL and SSMS

October 25, 2007

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Scripts, SQL Server Management Studio

SQL Server compiles query and saves the procedures cache plans in the database. When the same query is called it uses compiled execution plan which improves the performance by saving compilation time. Queries which are parametrized requires less recompilation and dynamically built queries needs compilations and recompilation very frequently. Forced…

SQL SERVER – 2005 – Limitation of Online Index Rebuld Operation

October 21, 2007

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Index

Just a day ago, during one interview question of Online Indexing come up. I really enjoy discussing this issue as I was talking with candidate who was very smart. Following two questions were discussed. 1) What is Online Index Rebuild Operation? Online operation means when online operations are happening the…

SQL SERVER – Set Server Level FILLFACTOR Using T-SQL Script

October 20, 2007

Pinal Dave

SQL Performance

SQL Index, SQL Performance, SQL Scripts, SQL Server

As the title is very clear what this post is about I will not write long description. I have listed definition of FILLFACTOR from BOL here.

SQL SERVER – Explanation and Understanding NOT NULL Constraint

October 15, 2007

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Constraint and Keys, SQL Joins, SQL NULL, SQL Scripts

NOT NULL is integrity CONSTRAINT. It does not allow creating of the row where column contains NULL value. Most discussed question about NULL is what is NULL? I will not go in depth analysis it. Simply put NULL is unknown or missing data. When NULL is present in database columns,…

SQL SERVER – Three Rules to Use UNION

October 14, 2007

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Joins, SQL Scripts, SQL Union clause

I have previously written two articles on UNION and they are quite popular. I was reading SQL book Sams Teach Yourself Microsoft SQL Server T-SQL in 10 Minutes By Ben Forta and I came across three rules of UNION and I felt like mentioning them here. UNION RULES A UNION…

SQL SERVER – 2005 – Explanation of TRY…CATCH and ERROR Handling With RAISEERROR Function

October 3, 2007

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Error Messages, SQL Scripts

One of the developer at my company thought that we can not use RAISEERROR function in new feature of SQL Server 2005 TRY…CATCH. When asked for explanation he suggested SQL SERVER – 2005 Explanation of TRY…CATCH and ERROR Handling article as excuse suggesting that I did not give example of…

SQL SERVER – 2005 – OUTPUT Clause Example and Explanation with INSERT, UPDATE, DELETE

October 1, 2007

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Scripts

SQL Server 2005 has new OUTPUT clause, which is quite useful. OUTPUT clause has accesses to inserted and deleted tables (virtual tables) just like triggers. OUTPUT clause can be used to return values to client clause. OUTPUT clause can be used with INSERT, UPDATE, or DELETE to identify the actual…