
比如mssql中:
alter
table
tbl_xxx
add
constraint
fk_xxx
foreign
key
(lodno)
references
tbl_aaa
(lono)
on
update
cascade
on
delete
cascade
注意on
update
cascade
on
delete
cascade
只ORACLE 可以下面这样 select column_name from dba_cons_columns where constraint_name = any ( select constraint_name from dba_constraints where table_name= &a) 把&a 替换成你要查询的表名记得采纳啊
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