Oracle DB 12.1.0.2 中SYS.ALL_CONSTRAINTS的定义 和 SYS.ALL_CONS_COLUMNS的定义
SYS.ALL_CONSTRAINTS的定义如下: CREATEORREPLACEVIEWALL_CONSTRAINTSAS
selectOWNER,CONSTRAINT_NAME,CONSTRAINT_TYPE,
TABLE_NAME,SEARCH_CONDITION,SEARCH_CONDITION_VC,
R_OWNER,R_CONSTRAINT_NAME,DELETE_RULE,ST