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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 )
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.
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.
ALTER TABLE {your_table_name} DROP INDEX {your_index_name} OR. DROP INDEX {your_index_name} ON {your_tbl_name}
MySQL DROP INDEX. In MySQL, the DROP INDEX statement is used to remove one or more indexes from a table. Indexes in a database are structures that enhance the speed of data retrieval operations on database tables. They provide a quick way to look up data based on the values in specific columns.
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.
