之前分享过利用Oracle数据库自带功能生成随机全局唯一识别符,这次介绍利用4gl生成
security.RandomGenerator.CreateUUIDString
Creates a new universal unique identifier (UUID).
Syntax
security.RandomGenerator.CreateUUIDString()
RETURNS STRING
Usage
This method generates an universal unique identifier and returns the value as STRING.
The generated string follows the UUID version 4 specification. Version 4 UUIDs have the form xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx where x is any hexadecimal digit and y is one of 8, 9, A, or B.
上述摘自4js官方文档。
进入xshell界面
vim 新建一个4gl文档
vim test1.4gl
IMPORT security
MAIN
DEFINE l_test1 BIGINT
CALL security.RandomGenerator.CreateRandomNumber() RETURNING l_test1
DISPLAY l_test1
END MAIN
执行r.cs 编译
执行程序
fglrun test1
即可看到已经利用4gl自动产生UUID