COMMENT ON TABLE bills is '运单记录'; COMMENT ON COLUMN bills.id IS 'id号'; COMMENT ON COLUMN bills.goodsdesc IS '货物名称'; COMMENT ON COLUMN bills.beginunit IS '启运省份'; COMMENT ON COLUMN bills.begincity IS '启运城市'; COMMENT ON COLUMN bills.pubtime IS '发布时间'; COMMENT ON...
TABLESPACE pg_default;ALTERTABLEschema2023.some_info OWNERtopostgres; COMMENTONTABLEschema2023.some_infoIS'一些信息'; COMMENTONCOLUMNschema2023.some_info.idIS'主键'; COMMENTONCOLUMNschema2023.some_info.nameIS'名称'; COMMENTONCOLUMNschema2023.some_info.moneyIS'价值:人民币计价'; COMMENTONCOLUMNschema20...
表的备注信息增加:commentontable '表名'is'备注信息'; 表的列名备注信息增加:commentontable '表名.列名'is'备注信息'; 表的列名备注信息查询:select*frompg_descriptionjoinpg_classonpg_description.objoid=pg_class.oidwhererelname='表名'
public|commenttest|table|postgres|8192bytes| AI代码助手复制代码 由于commenttest是一个刚刚创建的新表,因此Description列为空。可以通过以下命令添加注释: postgres=# COMMENTONTABLE commenttestIS'A table of students in different departments';COMMENT AI代码助手复制代码 现在再次运行\d+,可以看到描述列填充了注释。
表的备注信息增加:comment on table '表名' is '备注信息'; 表的列名备注信息增加:comment on table '表名.列名' is '备注信息'; 表的列名备注信息查询:select * from pg_description join pg_class on pg_description.objoid = pg_class.oid where relname = '表名'©...
COMMENT定义或者改变一个对象的注释。COMMENT ON { TABLE object_name | COLUMN table_name.column_name | AGGREGATE agg_name (agg_type) | CAST (source_type AS target_type) | CONSTRAINT constraint_name ON table_name | CONVERSION object_name | DATABASE object_name | DOMAIN object_name | FUNCTION...
GRANT SELECT, UPDATE, INSERT, DELETE ON TABLE public.user TO mydata_dml; GRANT SELECT ON TABLE public.user TO mydata_qry; 删除账号 #撤回在public模式下的权限 revoke select on all tables in schema public from 用户名; #撤回在information_schema模式下的权限 ...
flashback table 表名 to before drop [rename to 新表名] flashback table tt to before drop rename to yy; --闪回到修改前的状态 (一定不能改表结构) --删除dept表的数据 delete from dept; --前提是开启了行移动功能 alter table 表名 enable/disable row movement; ...
public | commenttest | table | postgres | 8192 bytes | 由于commenttest是⼀个刚刚创建的新表，因此Description列为空。可以通过以下命令添加注释：postgres=# COMMENT ON TABLE commenttest IS 'A table of students in different departments';COMMENT 现在再次运⾏\d+，可以看到描述列填充了注释。post...