如何查看 MySQL 中的数据库或表的索引？

Question

How do I see if my database has any indexes on it?

How about for a specific table?

转载于:https://stackoverflow.com/questions/5213339/how-to-see-indexes-for-a-database-or-table-in-mysql

Answer 1

To see the index for a specific table use SHOW INDEX:

SHOW INDEX FROM yourtable;

To see indexes for all tables within a specific schema you can use the STATISTICS table from INFORMATION_SCHEMA:

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

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