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To delete an existing index from a table, you use the DROP INDEX statement as follows: DROP INDEX index_name ON table_name [algorithm_option | lock_option]; Code language: SQL (Structured Query Language) ( sql )
The DROP INDEX command is used to delete an index in a table. MS Access: DROP INDEX index_name ON table_name; SQL Server: DROP INDEX table_name.index_name; DB2/Oracle: DROP INDEX index_name; MySQL: ALTER TABLE table_name.
DROP INDEX drops the index named index_name from the table tbl_name. This statement is mapped to an ALTER TABLE statement to drop the index. See Section 15.1.9, “ALTER TABLE Statement” .
28 cze 2024 · The DROP INDEX statement in MySQL is used to delete an existing index from a table. Removing unnecessary or redundant indexes can help optimize database performance and manage storage effectively. Syntax of DROP INDEX: The basic syntax for the DROP INDEX statement is as follows: DROP INDEX index_name ON table_name;
The basic syntax for the DROP INDEX statement is as follows: DROP INDEX [index_name] ON table_name; Here, index_name is the name of the index to be dropped, and table_name is the name of the table from which the index is to be removed.
Learn how to efficiently remove indexes in MySQL using the DROP INDEX command for non-primary keys and the ALTER TABLE command for primary keys. Simplify database maintenance with step-by-step instructions.
The DROP statement in MySQL database is used to remove or delete an existing database object such as a table, index, view, or procedure. Whenever we use DROP statement with any of the database objects, like indexes, it will remove them permanently along with their associated data.
