Defining and Manipulating Variables › User-defined Variables

User-defined Variables

User-defined variables are variables you can define to represent values that you need to run a specific program. After you have defined a variable, you can assign a value to it with the SET command. There are three types of user-defined variables:

• Persistent variables exist as long as the user has an active CA TPX session. They are accessible from any ACL/E program in any session. You define persistent variables with the UDEFINE command and delete them with the UDELETE command.
• Transient variables exist only for the life of the ACL/E program in which they are defined. They are accessible only from the current ACL/E program and its subroutines. You define transient variables with the VDEFINE command and delete them with the VDELETE command.
• Global variables are defined as CA TPX global variables. They are accessible by any ACL/E program and remain until they are deleted by a program. You define global variables with the GDEFINE command and delete them with the GDELETE command.