¿Qué es un generador de perfiles de consultas?

What is a query profiler?

Query Profiler is a query optimization tool that helps you profile and improve MySQL query performance, as well as track the differences in profiling results when executing the query several times. Profiling can also be used to determine the unexpected behavior of queries.

An SQL server profiler is a tool for tracing, recreating, and troubleshooting problems in MS SQL Server, Microsoft’s Relational Database Management System (RDBMS). The profiler lets developers and Database Administrators (DBAs) create and handle traces and replay and analyze trace results.

METHOD 2 – Manual steps

1. Click Start, point to Programs, click Microsoft SQL Server 20xx (your version), click Performance Tools, and then click SQL Server Profiler.
2. On the File menu, click New Trace… to open the ‘Connect to Server’ dialog box.
3. In the Server name box, type the name of the SQL Server.

Using Query Analyzer, you can execute queries and stored procedures and get a visual display of the SQL Server execution plan. Similar to Profiler, Query Analyzer is found in the SQL Server folder in the All Program menu. It, too, requires that you complete the Connect to SQL Server dialog.

You can open Query Analyzer from Enterprise Manager by clicking Tools > Query Analyzer. Tip: Before you open Query Analyzer, use Enterprise Manager to navigate to the database you’d like to work with. That way, Query Analyzer will open using that database.

Query Profiling Infrastructure. The SQL Server Database Engine provides the ability to access runtime information on query execution plans. One of the most important actions when a performance issue occurs, is to get precise understanding on the workload that is executing and how resource usage is being driven.

Database profiler is used to collect information regarding the queries which are executed on an individual database instance. If you are working with an enterprise level application and if you have been simultaneously executing queries then maybe in some queries you have to face a deadlock.

To achieve better query performance with the least resource consumption, use the MySQL EXPLAIN plan in Query Profiler. The EXPLAIN plan allows you to get a full picture of how operations are executed and in which the most appropriate order the tables are joined and accessed to run the statements in MySQL databases.

In Windows Authentication mode, the user account that runs SQL Server Profiler must have permission to connect to the instance of SQL Server. To perform tracing with SQL Server Profiler, users must also have the ALTER TRACE permission.