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SQL Server 2005 DMV - quick information to find resource allocation & DDL bottleneck

Published 9 June 8 3:29 AM | SSQA.net

Initially I preferred to put this blog post within Performance tuning blog section here, but as it relates to the TSQL script thought this is best place to go. Anyways, if you have a performance problem the foremost option is to find whether the server...

Filed under: sql server, performance, dmv, tsql, contention, ddl, bottleneck

SQL Server 2008 TSQL enhancements - what I like?

Published 4 April 8 9:58 AM | SSQA.net

Simple, short and crisp - I would like to say about TSQL enhancements within SQL Server 2008. You may already aware about what's new and how best you can take advantage within your code, most of the Developers would agree about IntelliSense functionality...

Filed under: sql server, performance, blogs, technet, merge, tsql, plan guide, new features, tvp, table-value

SQL Server 2008 - TSQL behavioural changes and enhancements

Published 31 March 8 2:0 PM | SSQA.net

As usual the new release of SQL Server version 2008 had few changes from 2000 to 2005 and as usual this control-of-flow sequence should occur in order to take advantage of performance with transaction/rollback advantages. Such direction of flow should...

Filed under: sql server, performance, transaction, article, 2008, tsql, enhancement, begin

SQL Server Analysis Services MDX Query performance monitoring - highlights

Published 29 January 8 3:27 AM | SSQA.net

When it comes to monitor the query performance whether it is TSQL or MDX, the process is similar. You need to have a better understanding on how queries are executed (architecture), what tools are available for monitoring and best practices to improve...

Filed under: sql server, performance, mdx, query, best practices, tsql, monitoring, Analysis Services, baseline, benchmarking

SQL Server 2005 Enterprise Edition - make data available while creating indexes on large tables!

Published 25 January 8 3:41 AM | SSQA.net

Though it is not a best practice to perform a CREATE INDEX on large tables during the online hours where you have number of users accessing the metadata of SQL Server database. Within SQL Server 2005 Enterprise Edition you can perform ONLINE indexes operation...

Filed under: sql server, performance, indexes, cache, users, tsql, best practice, backups, create, online, monitoring, operating system, busy, creation

How to use TSQL to find the size of total and free physical memory within the SQL Server?

Published 24 January 8 4:28 PM | SSQA.net

Recently I have to search for the information on the total size of free physical memory on the SQL Server which is causing lots of performance issues, when reported to CSS they have supplied the following TSQL to get more information in this regard: With...

Filed under: sql server, performance, memory, microsoft, dump, physical, tsql, select, css, size

TSQL to findout blocking and locks on a SQL Server?

Published 7 December 7 1:8 PM | SSQA.net

Have you ever performed huge operations such as deleting records of a table and processing inserts on that table at the same time? This is a common task that every application will have to perform and you can avoid by fine tuning your queries (mostly...

Filed under: sql server, performance, indexes, blocking, security, insert, tsql, locks, deletes

Identifying top 20 most expensive queries in terms of read I/O (referred from Technet Magazine)

Published 15 November 7 7:16 AM | SSQA.net

It is worth mentioning the valueable query I have been through when referring to Technet Magazine, the following query has given me useful information in finding out what are my top 20 most expensive queries that are consuming most of disk I/O (read &...

Filed under: sql server, performance, microsoft, technet, dmv, top, tsql, reads, system resources, expensive query, identity, writes

Show text from sql_handle

Published 4 October 7 5:50 AM | SSQA.net

Based upon the query or stored procedure execution the plan will be stored in the cache, but it may not be in readable format as it is stored in Hexadecimal when you simply query SYSPROCESSES table. So in order to extract the query plan that is in cache...

Filed under: sql server, performance, xml, top, tsql, execution, list, query plan, showpan

Another Best Practices article: Identifying and Resolving MDX Query Performance Bottlenecks

Published 5 September 7 4:34 AM | SSQA.net

Best Practices are good enough to follow, but simply do not read and digest. Try to implement them within your environment to keep up the performance. Similary there are many things involved within the SQL Server 2005 Analysis Services such as MDX queries...

Filed under: sql server, performance, mdx, tuning, ssas, query, best practices, tsql

Triggers within CLR - advantage over TSQL

Published 4 September 7 4:10 AM | SSQA.net

You may be aware the DML and DDL triggers can be nested up to 32 levels, because any reference to such trigger code counts as one-level in the nesting limit. Even though it is possible to control whether AFTER triggers can be nested through the nested...

Filed under: sql server, performance, query, clr, trigger, table, tsql, recursive, cte

TSQL to detect long running queries against the database

Published 29 August 7 6:37 AM | SSQA.net

When I'm performing a performance analysis on a 24/7 application and dealing with PSS I had been given the following TSQL to identify the long running queries against a database. select r.session_id, s.host_name, s.program_name, s.host_process_id...

Filed under: sql server, performance, databases, query, tsql, running, long

TSQL cursors vs API cursors - poor cursor usage

Published 27 August 7 8:54 AM | SSQA.net

Cursors are based for a definitive purpose, but heavy usage of such methods will prove as costly expense on database performance. The process of cursor is prolonged, as a cursor first has to be defined with its features set, then populated after positioning...

Filed under: application, sql server, performance, usage, cursor, tsql, api, heavy

How to Analyze the PERFMON (SYSMON) data?

Published 20 August 7 1:26 PM | SSQA.net

As you may aware the PERFMON (SYSMON) utility provides much information to analyze on the systems resource usage, I support and suggest to make use of this tool as much as you can with a default templates within our environment. You may be aware the data...

Filed under: sql server, perfmon, performance, analysis, databases, tuning, sysmon, tsql

TSQL to generate GRANT statements from a database

Published 17 August 7 5:45 AM | SSQA.net

select p . state_desc + ' ' + p . permission_name + ' OBJECT::' + s . name collate Latin1_general_CI_AS + o . name collate Latin1_general_CI_AS + ' TO ' + u . name collate Latin1_general_CI_AS + 'GO' , p .* from sys.database_permissions...

Filed under: sql server, performance, access, permission, system, tsql, grant

Display the server-level information the application role can currently view.

Published 9 August 7 5:28 AM | SSQA.net

SELECT sid, status, name, dbname, hasaccess, loginname FROM master.dbo.syslogins; GO SELECT spid, kpid, lastwaittype, waitresource, dbid FROM master.dbo.sysprocesses; GO...( read more ) Read More...

Filed under: performance, view, tsql, tables, application role

TSQL to identify the transaction with the most locks

Published 31 July 7 9:25 AM | SSQA.net

SELECT request_session_id, COUNT (*) num_locks FROM sys.dm_tran_locks GROUP BY request_session_id ORDER BY count (*) DESC...( read more ) Read More...

Filed under: sql server, performance, transaction, tsql, locks

Performace overhead and resolution when using CLR vs TSQL

Published 31 July 7 3:42 AM | SSQA.net

Integration with .NET framework CLR within SQL Server gives extra flexibility for the developers to use other programming languages such as C# or VB.net by creating functions, stored procedures, triggers, data types, and aggregates are among the kinds...

Filed under: sql server, performance, memory, server, clr, tsql, managed code

Retrieve SessionID and batch information

Published 24 July 7 4:37 AM | SSQA.net

You may be aware using SP_WHO or SP_WHO2 statements you can get information about a session id and statement that is running since good olden days of SQL Server. Within SQL 2005 version you can take help of TSQL: SELECT session_id, text FROM sys.dm_exec_requests...

Filed under: performance, cache, tsql, tables, object_name, forced

Usage and good practices with UPDATE STATISTICS feature in SQL 2005

Published 23 July 7 5:39 AM | SSQA.net

UPDATE STATISTICS is very helpful to get the performance by updating the distribution of key values for one or more statistics groups or set of collections in the specified table or indexed view. So how this is handled within the SQL Server, you may be...

Filed under: performance, security, dmv, query, optimization, tsql, statistics, update statistics