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  • How to check indexes for a database or table in mysql ?

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    There are chances that you want to check for the indexes that you created on the tables in past because there can be a large number of indexes on numerous of tables depending on the size of the database

    If you want to see the indexes for a particular table

    SHOW INDEXES FROM <table_name>
    

    And when you have to see all the indexes for the complete database you have to use this command

    SELECT DISTINCT
        TABLE_NAME,
        INDEX_NAME
    FROM INFORMATION_SCHEMA.STATISTICS
    WHERE TABLE_SCHEMA = 'your_database_name';
    

    Removing the where clause will show you all indexes in all databases.

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