oracle查看禁用/启用/删除外键约束sql

 1、查看禁用外键sql

 select ‘alter table ‘||table_name||‘ disable constraint ‘||constraint_name||‘;‘ from user_constraints where constraint_type=‘R‘; 

 2、查看启用外键sql 

select ‘alter table ‘||table_name||‘ enable constraint ‘||constraint_name||‘;‘ from user_constraints where constraint_type=‘R‘;

 3、查看删除外键sql 

select ‘alter table ‘||table_name||‘ drop constraint ‘||constraint_name||‘;‘ from user_constraints where constraint_type=‘R‘;