Normal users cannot see MYSQL Indexes because the indexes are just applied to speed up the MySQL statements and use the Database Search Engine to discover the table records rapidly. The table in the database ha
Indexes can slow INSERT, UPDATE, and DELETE performance. If you find that an index hinders overall performance or you no longer need it, you can delete it. To delete an index In Object Explorer, right-click the table with indexes you want to delete and clickDesign(Modifyin SP1 or earlier...
Step 3. Use SQL Query Analyzer to Optimize Queries and Indexes Step 4. Defragment Indexes Additional Resources Applies To Microsoft® SQL Server™ 2000 Overview This How To helps you to optimize your queries by indexing your tables correctly. The purpose of an index in SQL Server is to al...
2. ExpandDatabases-> ExpandAdventureWorks2008R2database -> ExpandTables-> ExpandSales.Customertable -> ExpandIndexesand theright clickthe index which you want to disable and clickDisable. This will open up Disable Index popup. How to Disable an Index in SQL Server 3. This will open up Disable...
Database: Oracle, SQL Server, PostgreSQL Not: MySQL This method is similar to method 1 but uses theDENSE_RANKmethod. In fact, it’s almost exactly the same. The syntax looks like this: DELETEFROMtableaWHEREa.ROWIDIN(SELECTridFROM(SELECTROWID rid,DENSE_RANK()OVER(PARTITIONBYunique_columnsORD...
Introduction to Indexes in PostgreSQL Indexes are handy in PostgreSQL to fast retrieval of data; we can create an index on a column of the table which used in select operation for retrieving fast data; PostgreSQL index is the same as a pointer on a table; for example, If one book and we...
Common table expressions: when and how to use them Import data from a CSV using PostgreSQL JOIN relationships and JOINing tables Creating multicolumn indexes in SQL Selecting records from the last 24 hours in PostgreSQL How to kickstart PostgreSQL on Mac OS X How COUNT(DISTINCT [field...
How to: Delete Full-Text Indexes from Databases Article 12/03/2014 Delete a full-text index when it is no longer needed. Note A new version of Table Designer appears for databases in the SQL Server 2012 format. This topic describes the old version of Table Designer, which you use with ...
This mature SQL database recovery tool provides the following services. Repairs corrupted SQL database files (MDF/NDF files) Recovers deleted records in SQL server Repairs damaged SQL server database components - tables, triggers, indexes, keys, rules & stored procedures Export SQL database to ...
By deleting indexes, or index tags, that you never use, you can improve performance by removing the need for Visual FoxPro to update those tags. To delete an index, delete the index tag in the compound index (.cdx) file or delete the entire standalone index (.idx) file. ...