Randy starts a multiple part series on tuning queries. We've asked Randy to really start from scratch and walk through the process. This week he takes a look at viewing query plans in Query Analyzer.
2019-11-08 (first published: 2003-08-19)
26,302 reads
Building high performance applications with SQL Server can be a challenge if you do not understand how the query processor works and how the server uses indexes. SQL Server expert Randy Dyess brings a look at how bookmark lookups are used when satisfying a query and how this can impact the performance of your query.
2008-07-18 (first published: 2005-05-30)
39,003 reads
In this article Randy Dyness shows you how to avoid temp tables whenever to maximize the performance of your queries.
2008-05-30 (first published: 2002-04-09)
70,010 reads
Did you know that you can obtain the execution plans for your SQL Server 2000 queries using Profiler? It is an interesting concept, especially when you need to troubleshoot the queries on a system that you did not develop and cannot obtain source code for. SQL Server guru andy Dyess brings us the technique you can use to find those queries and execution plans.
2005-04-18
16,800 reads
Understanding the different types of joins used by the optimizer will help developers and DBAs understand how the optimizer is routing their queries. Developers often create queries without knowing that it would only take a few tweaks to produce an execution plan that utilizes one optimizer join method over another. These small tweaks can have dramatic effects on the optimization of the query and the ultimate satisfaction of the query by the end-users.
2005-02-09
22,567 reads
Some good info on password changes in Yukon (SQL 2005). Based on the beta, but worth taking a look at.
2004-03-19
8,952 reads
Randy says that the biggest reason we have so many injection vulnerabilities is that all the asp books use inline sql for their examples! We STILL encounter developers who don't understand injection. Read and pass on to your dev team.
2004-02-24
15,808 reads
We've had a good run of jobs about job management lately, Randy sent us another one that looks at the job of job management and shows us how he tackled the problem.
2003-04-02
24,125 reads
This article explains how to use a simple batch file and script file to manage multiple databases on multiple servers.
2002-10-24
10,046 reads
This article briefly discusses SQL Server's data and procedure cache and shows you the common Transact-SQL statements/command and system tables that you can use to interact with the cache through Transact-SQL.
2002-08-15
14,254 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...
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Telp/Wa 62 821-8200-203 Gedung Perkantoran Hijau Arkadia, Tower C - Ground Floor, unit C103,...
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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