1、使用 CREATE DATABASE SQL 语句来创建。 2、使用 createdb 命令来创建。 3、使用 pgAdmin 工具。 CREATE DATABASE 创建数据库 CREATE DATABASE 命令需要在 PostgreSQL 命令窗口来执行,语法格式如下: CREATE DATABASE dbname; 例如,我们创建一个 shulanxtdb 的数据库: postgres=# CREATE DATABASE shulanxtdb; ...
In PostgreSQL, you can use the“createdb”command to create/make a new database. You can run the "createdb" command directly from the Command Prompt, unlike the“CREATE DATABASE”command. The“createdb”command can add some comments/descriptions to the database altogether. The basic syntax of ...
CREATE DATABASE创建一个新的PostgreSQL数据库。 要创建一个数据库,你必须是一个超级用户或者具有特殊的CREATEDB特权。见CREATE ROLE。 默认情况下,新数据库将通过克隆标准系统数据库template1被创建。可以通过写TEMPLATEname指定一个不同的模板。特别地,通过写TEMPLATE template0你可以创建一个原始的数据库(其中没有用户...
In PostgreSQL, the database objects are created using the CREATE command. In this write-up, we will discuss how to use the Postgres “CREATE” command for Table, View, Sequence, INDEX, Function, and Tablespace Creation. Case 1: Use the CREATE Command For Table Creation Tables are among the...
In Databases like MySQL, you can use the“IF NOT EXISTS”option with theCREATE DATABASEcommand to create a database only if it doesn’t exist already. However, PostgreSQL doesn’t support the“IF NOT EXISTS”option for theCREATE DATABASEstatement. But thankfully Postgres supports an alternative...
PostgreSQL-create database 注意事项 1、数据库初始化指定字符集与排序规则 A initdb --encoding=UTF8 --locale=C -D /pdata/data--wal-segsize=64 B initdb --encoding=UTF8 --locale=zh_CN.UTF-8 --lc-collate=zh_CN.utf8 --lc-ctype=zh_CN.utf8 -D /pdata/data...
create database指定字符集 postgresql 前言 最近正在做一个项目,需要导出数据库中的表,但是数据库中有很多带有虚拟列的表,而且表中的数据非常的庞大,有些表中的数据上亿条,项目经理让我研究如何快速导出这些数据。 下面是我研究的一些经历: (1)、我先使用plsql developer导出dmp(实际上是通过emp导出),但是不能...
dblink_exec is used to execute the CREATE DATABASE command dynamically. 3. Conditional Logic: The database is created only if it does not exist. Example 2: Emulating Behavior Without Extensions If dblink is unavailable, you can use a script outside PostgreSQL to achieve similar functionality: ...
1) Create a database with default parameters First, open the Command Prompt on Windows or Terminal on Unix-like systems and connect to the PostgreSQL server: psql -U postgres Second, execute the CREATE DATABASE statement to a new database with default parameters: CREATE DATABASE sales; Output...
To create a geodatabase in PostgreSQL, do the following: Confirm the ArcGIS, PostgreSQL, and operating system combinations you want to use are supported. Obtain an ArcGIS Server keycodes file and place it in a location you can access from the ArcGIS client you'll use to create...