-- 查看该索引所在表的名称,以及构成该索引的键值数量和具体键值的字段编号。postgres=#SELECTindnatts,indkey,relnameFROMpg_index i, pg_class cWHEREc.relname='testtable2'ANDindrelid=c.oid;*indnatts|indkey|relname---+---+---2|13|testtable2 (1row)-- 查看指定表包含的索引,同时列出索引的名称。
revoke select on all tablesinschema information_schema from 用户名;#撤回在pg_catalog模式下的权限 revoke select on all tablesinschema pg_catalog from 用户名;#撤回对数据库的操作权限 revoke all on database 数据库名 from 用户名; 模式Schema PostgreSQL 模式SCHEMA 可以看着是一个表的集合。一个模式可以...
GRANT UPDATE ON demo TO demo_role; --赋予demo_role demo表的update权限 GRANT SELECT ON ALL TABLES IN SCHEMA PUBLIC to demo_role; --赋予demo_role所有表的SELECT权限 特殊符号:ALL代表所访问权限,PUBLIC代表所有用户 GRANT ALL ON demo TO demo_role; --赋给用户所有权限 GRANT SELECT ON demo TO PU...
2、通过SQL语句查询 "select * from pg_tables" —— 得到当前db中所有表的信息(这里pg_tables是系统视图) "select tablename from pg_tables where schemaname='public'" —— 得到所有用户自定义表的名字(这里"tablename"字段是表的名字,"schemaname"是schema的名字。用户自定义的表,如果未经特殊处理,默认都...
But as you can see, they will list all the tables in the database, so you probably will need filtering anyway. The ANSI standard way As I said, there is a SQL-standard way to show tables in PostgreSQL by queryinginformation_schema: ...
#创建数据库 create database db1 owner u1; #授权 grant all privileges on database db1 to u1; #修改密码 \password u1 #显示当前用户 select current_user; #显示当前schema select current_schema; show search_path; #查看系统参数 show work_mem; show all; #设置系统参数 set work_mem='8MB'; #...
Third, use the \dt command from the PostgreSQL command prompt to show tables in the dvdrental database: \dt Output: List of relations Schema | Name | Type | Owner ---+---+---+--- public | actor | table | postgres public | address | table | postgres public | category | table ...
ALTER DEFAULT PRIVILEGES [ FOR { ROLE | USER } target_role [, ...] ] [ IN SCHEMA schema_name [, ...] ] abbreviated_grant_or_revoke where abbreviated_grant_or_revoke is one of: GRANT { { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFERENCES | TRIGGER } [, ...] | ALL ...
ALTER COLLATION _name_ SET SCHEMA _new_schema_ ALTER CONVERSION 修改一个编码转换的定义。 ALTER CONVERSION name RENAME TO new_name ALTER CONVERSION name OWNER TO new_owner ALTER DATABASE 修改一个数据库。 ALTER DATABASE name SET parameter { TO | = } { value | DEFAULT } ...
1、E = 外部表（由许多外部数据包装器之一提供）2、I = 索引3、m = 物化视图4、s = 序列5、t = 表格6、v = 视图postgres=# \dt List of relations Schema | Name | Type | Owner---+---+---+--- public | example_tbl | table | postgres 4、显示角色和成员 角色用于连接到 ...