Old database name –This is defined as an old database name from the database server, which we have renamed to a different name. Rename To –This keyword is defined as using this keyword, we can change the database name with a different name in PostgreSQL. We have used rename to keywo...
一、数据库角色: 1. 创建角色: CREATE ROLErole_name; 2. 删除角色: DROP ROLErole_name; 3. 查询角色: 检查系统表pg_role,如: SELECT usename FROMpg_role; 也可以在psql中执行\du命令列出所有角色。 二、角色属性: 一个数据库角色可以有一系列属性,这些属性定义他的权限,以及与客户认证系统的交互。 1....
Type the name of the PostgreSQL server in the Instance text box. In the Database text box, type the name of the database you want to create to contain your geodatabase. Note: Type the database name in lowercase; upper- and mixed-case object names are not supported for ...
CREATE [OR REPLACE] FUNCTION myfunction ([inputparam] type {default}) RETURNS returntype AS $$ SQL body $$ LANGUAGE 'language_name'; CREATE FUNCTION 与存储过程一样,$$ 符号用于启动和结束字符串。 函数采用以下参数: 名称 - (可选)可包含架构名称。 argmode - 参数模...
lang_name - 用于编写过程的语言。 可以是 sql、c、internal 或用户定义过程语言的名称,例如 plpgsql。 在以下示例中,创建名为 myprocedure 的存储过程,该存储过程采用输入参数 a 和 b。 IN 是参数的默认值,因此我们不必将其显式标识为输入参数。 调用存储过程时,分配给这些参数的值...
psql --host=<server-name>.postgres.database.azure.com --username=<admin-user>@<server-name> --dbname=postgres 根据提示输入密码。 备注 postgres 是使用 Azure Database for PostgreSQL 创建的默认管理数据库。 可以使用 psql 中的 CREATE DATABASE 命令创建其他数据库。
TABLESPACE = TABLESPACE_NAME CONNECTION LIMIT = max_concurrent_connection; PostgreSQL- How to Create Database using Command Line In order to create a database, the PostgreSQL server must be up and running. The syntax to create database is: ...
Executing the above-stated meta-command will retrieve the name of the schema in which the relation is located, the name of the relation, its type, and its owner. Execute the stated command with the “+” symbol to describe the relations with more details like “persistence”, “access metho...
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The name of the archive class table is the same as the original business table name with an underscore and H appended to it. For example, if a feature class named buildings is enabled for archiving, an archive class, buildings_H, is created.This archive class table is stored in th...