Oracle查找表的外键引用关系
select t1.table_name,
t2.table_name as "TABLE_NAME(R)",
t1.constraint_name,
t1.r_constraint_name as "CONSTRAINT_NAME(R)",
a1.column_name,
a2.column_name as "COLUMN_NAME(R)"
from user_constraints t1, user_constraints t2, user_cons_columns a1, user_cons_columns a2
where t1.owner = upper('DCI') and
t1.r_constraint_name = t2.constraint_name and
t1.constraint_name = a1.constraint_name and
t1.r_constraint_name = a2.constraint_name;
DCI是用户名称 查看被视图或者触发器、存储过程使用过：
select * from user_dependencies t where t.referenced_name = 'TABLE_NAME';