CREATE FUNCTION distributors_id_max() RETURNS INT4 AS 'SELECT max(id) FROM distributors' LANGUAGE 'sql'; BEGIN; COPY distributors FROM 'input_file'; SELECT setval('serial', distributors_id_max()); END; 兼容性 SQL92 CREATE SEQUENCE是 Postgres 语言扩展.在 SQL92 里没有CREATE SEQUENCE语句. 在...
目前,要想在 Postgres 里面只赋予几列权限,你必须创建一个包含那几列的视图(view),然后把权限赋予那几个视图。 使用psql z 命令获取关于现存对象权限的更多信息: Database = lusitania +---+---+ | Relation | Grant/Revoke Permissions | +---+---+ | mytable | {"=rw","miriam=arwR","group tod...
PostgreSQL is a relational DBMS that provides a variety of functionalities to its users. The new user has limited rights to access database objects by default. Therefore, the “GRANT” statement is utilized to assign a specific role to the selected users. For instance, the syntax of the “GR...
s2 | postgres (3 rows)t1=# create user u1 password ‘123456';CREATE ROLE t1=# create user u2 password ‘123456';CREATE ROLE t1=# grant all privileges on schema s1 to u1;GRANT t1=# grant all privileges on schema s2 to u1;GRANT t1=# \c - u1 You are now connected to database “...
在 He3DB 的源代码中, GrantRole(@src\backend\commands\user.c) 是处理角色授予和撤销的函数,通常用于执行相关的 SQL 语句。当调用 GrantRole 函数时,会根据 GrantRoleStmt 结构体中的信息执行授予或撤销角色的操作。 /* * GrantRoleStmt
目前,要想在 Postgres 里面只赋予几列权限,你必须创建一个包含那几列的视图(view),然后把权限赋予那几个视图。 使用psql z 命令获取关于现存对象权限的更多信息: Database = lusitania +---+---+ | Relation | Grant/Revoke Permissions | +---+---+ | mytable | {"=rw","miriam=arwR","group...
Database superusers can grant or revoke membership in any role to anyone. Roles having theCREATEROLEprivilege can grant or revoke membership in any role that is not a superuser. There are three pre-defined roles that have the following meanings: ...
TO USER newUser WITHGRANTOPTION;GRANTCONNECT ON DATABASE TO USER newUser withgrantoption; 浏览0提问于2015-02-04得票数 2 回答已采纳 2回答 在postgres google云中将用户升级为超级用户 、 如何使用google云控制台在Postgres serwer中创建具有超级用户角色的用户?
CREATE USER miriam IN GROUP todos;参考 REVOKE 语句重新分配访问权限.用法 给所有用户向表 films 插入记录的权限：GRANT INSERT ON films TO PUBLIC;赋予用户 manuel 操作视图 kinds 的所有权限：GRANT ALL ON kinds TO manuel;兼容性 SQL92 SQL92 GRANT 语法允许对表中的某单独列/字段设置权限，并且...
目前，要想在 Postgres 里面只赋予几列权限，你必须创建一个包含那几列的视图（view），然后把权限赋予那几个视图。使用 psql \z 命令获取关于现存对象权限的更多信息：Database = lusitania +---+---+ | Relation | Grant/Revoke Permissions | +---+---+ | mytable |...