SYS.ALL_CONS_COLUMNS的定义如下: CREATE OR REPLACE VIEW ALL_CONS_COLUMNS (owner, constraint_name, table_name, column_name, position) AS select u.name, c.name, o.name, decode(ac.name, null, col.name, ac.name), cc.pos# from sys.user$ u, sys.con$ c, sys.col$ col, sys.ccol$ ...
FROM all_cons_columns WHERE TABLE_NAME = 'EMPLOYEES' AND CONSTRAINT_NAME IN ( SELECT CONSTRAINT_NAME FROM all_constraints WHERE TABLE_NAME = 'EMPLOYEES' AND CONSTRAINT_TYPE = 'U'); 该语句将返回所有属于EMPLOYEES表的唯一性约束列的名称。 总的来说,all_constraints表是Oracle数据库中一个非常重要的...
index_ownerTEXTUser name of the index owner. index_nameTEXTThe name of the index. constraint_defTEXTThe definition of the constraint. ← Prev ALL_CONS_COLUMNS ↑ Up Database Compatibility for Oracle Developers Catalog Views Guide Next → ...
Alias all columns in a given table Alias column with variable value in SQL Script All MonthNames and Month numbers in sql server All queries combined using a UNION, INTERSECT or EXCEPT operator must have an equal number of expressions in their target lists. all the events in the workload wer...
migration generation wants to drop all unique constraints and create them again. I ran this migration however it wants to do it on the next generate as well. The only thing I can tell(without digging into the code) is that the order indownis backwards on the columns in the SQL statement...
SYS.ALL_CONS_COLUMNS的定义如下: CREATE OR REPLACE VIEW ALL_CONS_COLUMNS (owner, constraint_name, table_name, column_name, position) AS select u.name, c.name, o.name, decode(ac.name, null, col.name, ac.name), cc.pos# from sys.user$ u, sys.con$ c, sys.col$ col, sys.ccol$ ...
SYS.ALL_CONS_COLUMNS的定义如下: CREATE OR REPLACE VIEW ALL_CONS_COLUMNS (owner, constraint_name, table_name, column_name, position) AS select u.name, c.name, o.name, decode(ac.name, null, col.name, ac.name), cc.pos# from sys.user$ u, sys.con$ c, sys.col$ col, sys.ccol$ ...