Created
September 3, 2012 02:42
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mysql operations
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# 查foreign key | |
# login in mysql | |
mysql -u root -p | |
use information_schema; | |
select TABLE_NAME,COLUMN_NAME,CONSTRAINT_NAME, REFERENCED_TABLE_NAME,REFERENCED_COLUMN_NAME from KEY_COLUMN_USAGE where REFERENCED_TABLE_NAME = '<TABLE NAME>'; | |
# 列出wed_development的所有FK | |
SELECT i.TABLE_SCHEMA, i.TABLE_NAME, i.CONSTRAINT_TYPE, i.CONSTRAINT_NAME, k.REFERENCED_TABLE_NAME, k.REFERENCED_COLUMN_NAME | |
FROM information_schema.TABLE_CONSTRAINTS i | |
LEFT JOIN information_schema.KEY_COLUMN_USAGE k ON i.CONSTRAINT_NAME = k.CONSTRAINT_NAME | |
WHERE i.CONSTRAINT_TYPE = 'FOREIGN KEY' and i.TABLE_SCHEMA='wed_development'; | |
# 列出index | |
SHOW INDEX FROM mytable FROM mydb; | |
SHOW INDEX FROM mydb.mytable; |
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