摘要： Show theFOREIGN KEY or CONSTRAINTSHOW CREATE TABLE ;ORuse INFORMATION_SCHEMA;select TABLE_NAME,COLUMN_NAME,CONSTRAINT_NAME,REFERENCED_TABLE_NAME,REFERENCED_COLUMN_NAME from KEY_COLUMN_USAGEwhere TABLE_SCHEMA = "" and TABLE_NAME = ""Drop theFOREIGN KEY or CONSTRAINTalter table dro 阅读全文