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我想创建查询导致这样的完整信息:获取有关约束
column_name, constraint_name, constraint_type, referenced_table_name, referenced_column_name
我有尝试这样的事情
SELECT col.column_name, cons.constraint_name, cons.constraint_type,col.referenced_table_name, col.referenced_column_name
FROM information_schema.table_constraints cons, information_schema.key_column_usage col
WHERE col.table_name = 'countries'
AND cons.constraint_name = col.constraint_name
AND cons.table_name = col.table_name
但是,我拿错列名... :(
请帮我...
constraint_type就像是(主键,外键,唯一的等) – Flashidkz 2012-01-13 16:16:44