HOW TO: How to import UUID function into Postgre 9.3

本文介绍如何在PostgreSQL中安装并使用UUID-ossp扩展,包括打开命令控制台进入PostgreSQL目录,通过psql命令连接数据库,创建并验证UUID-ossp扩展是否成功安装,最后演示如何生成UUID。

1. Open a command console and go to the directory where you installed Postgre server.

e.g. D:\Program Files\PostgreSQL\9.3\bin>

2. Drill down into BIN folder and issue following command.

psql -d <database name> -U <username>

3. Issue  CREATE EXTENSION command to import extension

CREATE EXTENSION "uuid-ossp" ;

NOTICE: There is a semicolon at the end of command.

4. After above steps, you can check if the extension has been imported successfully by calling following command.

 select * from pg_extension;

5. If succeed, you should be able to see the list as below.

  extname  | extowner | extnamespace | extrelocatable | extversion | extconfig | extcondition
-----------+----------+--------------+----------------+------------+-----------+--------------
 plpgsql   |       10 |           11 | f              | 1.0        |           |
 uuid-ossp |    89286 |         2200 | t              | 1.0        |           |

6. Now, you may generate UUID by uuid_generate_v4()

select uuid_generate_v4() ;

 

 




本文转自mfrbuaa博客园博客,原文链接:http://www.cnblogs.com/mfrbuaa/p/5136755.html,如需转载请自行联系原作者

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