SQL如何插入字段说明

Oracle\x0d\x0a通过 COMMENT ON TABLE / COMMENT ON COLUMN 追加表/字段的备注。\x0d\x0aCREATE TABLE "MR_DEPT" (\x0d\x0a"DEPT_ID" NUMBER NOT NULL ,\x0d\x0a"PARENT_ID" NUMBER,\x0d\x0a"DEPT_NAME" CHAR(20) NOT NULL ,\x0d\x0a"STATUS" NUMBER DEFAULT 1 NOT NULL ,\x0d\x0aPRIMARY KEY ("DEPT_ID") \x0d\x0a) \x0d\x0a/\x0d\x0aCOMMENT ON TABLE "MR_DEPT" IS '部门表'\x0d\x0a/\x0d\x0aCOMMENT ON COLUMN "MR_DEPT"."DEPT_ID" IS '部门编号'\x0d\x0a/\x0d\x0aCOMMENT ON COLUMN "MR_DEPT"."PARENT_ID" IS '上级部门编号'\x0d\x0a/\x0d\x0aCOMMENT ON COLUMN "MR_DEPT"."DEPT_NAME" IS '部门名'\x0d\x0a/\x0d\x0aCOMMENT ON COLUMN "MR_DEPT"."STATUS" IS '状态'\x0d\x0a/\x0d\x0a\x0d\x0aSQL Server 通过存储过程追加\x0d\x0aCREATE TABLE test_table(\x0d\x0a Test_ID int IDENTITY(1,1) PRIMARY KEY NOT NULL ,\x0d\x0a Test_Key varchar(10) NOT NULL ,\x0d\x0a Test_Value varchar(20) NOT NULL \x0d\x0a)\x0d\x0ago\x0d\x0a\x0d\x0aEXECUTE sp_addextendedproperty N'MS_Description', '测试表', N'user', N'dbo', N'Table', N'test_table', NULL, NULL\x0d\x0ago\x0d\x0a\x0d\x0aEXECUTE sp_addextendedproperty N'MS_Description', '主键(自增长)', N'user', N'dbo', N'Table', N'test_table', N'column' , N'Test_ID'\x0d\x0ago\x0d\x0a\x0d\x0aEXECUTE sp_addextendedproperty N'MS_Description', '种类', N'user', N'dbo', N'Table', N'test_table', N'column' , N'Test_Key'\x0d\x0ago\x0d\x0a\x0d\x0aEXECUTE sp_addextendedproperty N'MS_Description', '数值', N'user', N'dbo', N'Table', N'test_table', N'column' , N'Test_Value'\x0d\x0ago\x0d\x0a\x0d\x0aMySQL 包含在建表语句中。\x0d\x0aCREATE TABLE test_table(\x0d\x0a Test_ID int NOT NULL AUTO_INCREMENT PRIMARY KEY COMMENT '主键(自增长)' ,\x0d\x0a Test_Key varchar(10) NOT NULL COMMENT '种类' ,\x0d\x0a Test_Value varchar(20) NOT NULL COMMENT '数值' \x0d\x0a)\x0d\x0aCOMMENT = '测试表'

SQL语句添加字段说明语法：EXECUTE sp_addextendedproperty N'MS_Description','列属性说明',N'user',N'dbo',N'table',N'table_name(表名)',N'column',N'column_name(列名)'

--以下示例是给Card表的字段CardID添加注释/说明为“卡号”

EXECUTE sp_addextendedproperty N'MS_Description','卡号',N'user',N'dbo',N'table',N'Card',N'column',N'CardID'

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