Seeing indexes in a MySQL table
To show indexes on a MySQL table use any of the following commands in a MySQL client:
SHOW INDEX FROM table_name or SHOW INDEX IN table_name
SHOW INDEXES FROM table_name or SHOW INDEXES IN table_name
SHOW KEYS FROM table_name or SHOW KEYS IN table_name
Replace table_name with the actual table name. You can optionally append the following clause at the end of any query above to select the database to use.
FROM db_name or IN db_name
Replace db_name with the database name.
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Please feel free to use the comments form below if you have any questions or need more explanation on anything. I recommend thoroughy testing on a production-like test system first before moving to production.