CREATE INDEX statement in SQL is used to create indexes in tables. The indexes are used to retrieve data from the database more quickly than ... ... <看更多>

This tutorial covers the different ways you can create or remove indexes on the columns in your tables. Also discussed are the different ... ... <看更多>

How do you create an index in MySQL ? Here you go! ... <看更多>

In MySQL, if you use ALTER TABLE tbl ADD INDEX (col) instead of ALTER TABLE tbl ADD INDEX col (col) , then using ALTER TABLE tbl ADD INDEX (col) more than once ... ... <看更多>

The activity of altering big tables are done in phases: Create a new table with required fields and indexes say in test DB (just structure); Dump the data ... ... <看更多>

MySQL : Create index if not exists. GitHub Gist: instantly share code, notes, and snippets. ... <看更多>