SQL SERVER - Delete Duplicate Records - Rows frontimage1

Is your SQL Server running slow and you want to speed it up without sharing server credentials? In my Comprehensive Database Performance Health Check, we can work together remotely and resolve your biggest performance troublemakers in less than 4 hours.

Once you learn my business secrets, you will fix the majority of problems in the future.

SQL SERVER - Delete Duplicate Records - Rows frontimage2

Have you ever opened any PowerPoint deck when you face SQL Server Performance Tuning emergencies? SQL Server Performance Tuning Practical Workshop is my MOST popular training with no PowerPoint presentations and 100% practical demonstrations.

Essentially I share my business secrets to optimize SQL Server performance.

For SQL Server Emergency Help, you can reach out to me at pinal@sqlauthority.com with words URGENT in the email subject line for other services mention “Comprehensive Database Performance Health Check“.

SQL SERVER – Fix: Sqllib error: OLEDB Error encountered calling IDBInitialize::Initialize. hr = 0x80004005. SQLSTATE: 08001, Native Error: 17

Error received: Sqllib error: OLEDB Error encountered calling IDBInitialize::Initialize. hr = 0x80004005. SQLSTATE: 08001, Native Error: 17 Error state: 1, Severity: 16 Source: Microsoft OLE DB Provider for SQL Server Error message: [DBNETLIB]SQL Server does not exist or access denied The simple fix: Microsoft SQL Server 2005 >> Configuration Tools…
Read More

SQL SERVER – DBCC command to RESEED Table Identity Value – Reset Table Identity

DBCC CHECKIDENT can reseed (reset) the identity value of the table. For example, YourTable has 25 rows with 25 as last identity. If we want next record to have identity as 35 we need to run following T SQL script in Query Analyzer. DBCC CHECKIDENT (yourtable, reseed, 34) If table…
Read More

SQL SERVER – Union vs. Union All – Which is better for performance?

This article is completely re-written with better example SQL SERVER – Difference Between Union vs. Union All – Optimal Performance Comparison. I suggest all of my readers to go here for update article. UNION The UNION command is used to select related information from two tables, much like the JOIN…
Read More

SQL SERVER – Script to Determine Which Version of SQL Server 2000-2005 is Running

To determine which version of SQL Server 2000/2005 is running, connect to SQL Server 2000/2005 by using Query Analyzer, and then run the following code: SELECT SERVERPROPERTY('productversion'), SERVERPROPERTY ('productlevel'), SERVERPROPERTY ('edition') The results are: The product version (for example, 8.00.534). The product level (for example, “RTM” or “SP2”). The edition…
Read More

SQL SERVER – QUOTED_IDENTIFIER ON/OFF and ANSI_NULL ON/OFF Explanation

When create or alter SQL object like Stored Procedure, User Defined Function in Query Analyzer, it is created with following SQL commands prefixed and suffixed. What are these – QUOTED_IDENTIFIER ON/OFF and ANSI_NULL ON/OFF? SET QUOTED_IDENTIFIER ON GO SET ANSI_NULLS ON GO--SQL PROCEDURE, SQL FUNCTIONS, SQL OBJECTGO SET QUOTED_IDENTIFIER OFF…
Read More
Menu