\set [NAME [VALUE]] set internal variable, or list all if no parameters \unset NAME unset (delete) internal variable Large Objects \lo_export LOBOID FILE \lo_import FILE [COMMENT] \lo_list \lo_unlink LOBOID large object operations
SELECT r.rolname, r.rolsuper, r.rolinherit, r.rolcreaterole, r.rolcreatedb, r.rolcanlogin, r.rolconnlimit, r.rolvaliduntil, ARRAY(SELECT b.rolname FROM pg_catalog.pg_auth_members m JOIN pg_catalog.pg_roles b ON (m.roleid = b.oid) WHERE m.member = r.oid) as memberof , r....
在PostgreSQL中删除重复记录其实很简单,不论有多少行重复,只要在要删除重复记录的表中table加一列rownum字段( id为table表中的主键) ,类型设置为serial类型即可,然后执行sql delete from deltest where rownum notin(selectmax(rownum) from deltest); 最后删除列rownum即可 ===...
CREATE ROLE 角色名; 假设我们现在需要创建一个经理的角色,就可以用下面的代码: AI检测代码解析 mysql> CREATE ROLE 'manager'@'localhost'; Query OK, 0 rows affected (0.06 sec) 1. 2. 这里的意思是,创建一个角色,角色名称是“manager”,角色可以登录的主机 是“localhost”,意思是只能从数据库服务器运行...
\unset NAME unset (delete) internal variable apple=# 查看所有系统表: 在psql工具中使用\d或者\d+列出当前当前数据库中的所有的表。 从information_schema.columns中查询表中的列。 apple=# \dt pg_*List of relations Schema| Name | Type |Owner---+---+---+---pg_catalog| pg_aggregate | table...
mail=# select grantee, privilege_type from information_schema.role_table_grants where table_name='aliases'; grantee | privilege_type ---+--- mailreader | INSERT mailreader | SELECT mailreader | UPDATE mailreader | DELETE mailreader | TRUNCATE mailreader | REFERENCES mailreader | TRIGGER (7 ...
CREATE ROLE abc_rw; CREATE ROLE abc_rr; ##赋予访问数据库权限,schema权限 grant connect ON DATABASE abc to abc_rw; GRANT USAGE ON SCHEMA abc TO abc_rw; ##赋予读写权限 grant select,insert,update,delete ON ALL TABLES IN SCHEMA abc to abc; ...
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 ...
我有一个运行docker-compose的postgres 10.6容器。我曾尝试使用该命令创建用户,但它不起作用。docker-compose exec kong-databasepsql-U postgres -c 'CREATE ROLE joe PASSWORD 'md5b5f5ba1a423792b526f799ae4eb3d59e^docker-compose exec kong-databasepsql-U postgres -c 'CREATEROLE davide LOGIN ...
CREATE ROLE mydatabase=# \password test_user Enter new password: Enter it again: mydatabase=# 【命令: \conninfo】 功能介绍: 显示有关当前连接的信息 mydatabase=# \c testdb gpadmin 127.0.0.1 5432 You are now connected to database "testdb" as user "gpadmin" on host "127.0.0.1" ...