PRINT('Loop through all tables and switch all constraints to have a delete rule of CASCADE') DECLAREDataBaseTables0 CURSORFOR SELECTSCHEMA_NAME(t.schema_id)ASschema_name, t.nameAStable_name FROMsys.tablesASt; OPENDataBaseTables0; FETCHNEXTFROMDataBaseTables0 INTO@TableOwner,@TableName; WHILE@...
PRINT('Loop through all tables and switch all constraints to have a delete rule of CASCADE') DECLAREDataBaseTables0 CURSORFOR SELECTSCHEMA_NAME(t.schema_id)ASschema_name, t.nameAStable_name FROMsys.tablesASt; OPENDataBaseTables0; FETCHNEXTFROMDataBaseTables0 INTO@TableOwner,@TableName; WHILE@...
--创建表 ALTER TABLE WEICK.STU DROP PRIMARY KEY CASCADE; DROP TABLE WEICK.STU CASCADE CONSTRAINTS; CREATE TABLE WEICK.STU ( NO VARCHAR2(10 BYTE) PRIMARY KEY,--添加主键自动生成唯一索引 NAME VARCHAR2(10 BYTE), GENTLE VARCHAR2(2 BYTE), AGE NUMBER(2), DEPT VARCHAR2(20 BYTE) ); --创建...
1,主键的删除 ALTER TABLE TABLENAME DROP PRIMARY_KEY 运行上面的SQL能够删除主键;假设不成功能够用 ALTER TABLE TABLENAME...DROP CONSTRAINTS COLUMN CASCADE; –删除约束 ALTER TABLE TABLENAME DISABLE PRIMARY_COLUMN ; –设置被设置为主键的列为无效...DROP INDEX INDEX_NAME; –删除主键索引 2,查看主键约束...
PRINT('Loop through all tables and switch all constraints to have a delete rule of CASCADE') DECLAREDataBaseTables0 CURSORFOR SELECTSCHEMA_NAME(t.schema_id)ASschema_name, t.nameAStable_name FROMsys.tablesASt; OPENDataBaseTables0; FETCHNEXTFROMDataBaseTables0 ...
if not object_id('tempdb..##table') is null drop table ##table create table ##table(ident int default 1,ctext varchar(4000) null default '') if not object_id('tempdb..#table_define') is null drop table #table_define if not object_id('tempdb..#table_constraints') is null ...
see fk syntax: | [ FOREIGN KEY ] REFERENCES [ schema_name . ] referenced_table_name [ ( ref_column ) ] [ ON DELETE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ] [ ON UPDATE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ] FragmentationOption specifies how index fragme...
cmdidMakeTableQuery cmdidManageConstraints cmdidManageIndexes cmdidManageRelationships cmdidMarkerCmd0 cmdidMarkerCmd1 cmdidMarkerCmd2 cmdidMarkerCmd3 cmdidMarkerCmd4 cmdidMarkerCmd5 cmdidMarkerCmd6 cmdidMarkerCmd7 cmdidMarkerCmd8 cmdidMarkerCmd9 cmdidMarkerEnd cmdidMarkerLast ...
see fk syntax: | [ FOREIGN KEY ] REFERENCES [ schema_name . ] referenced_table_name [ ( ref_column ) ] [ ON DELETE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ] [ ON UPDATE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ] FragmentationOption specifies how index fragme...