CATCH Blocks

ABL provides CATCH blocks to enable you to trap an error or stop object and write code to handle the object. This set of topics discuss CATCH block syntax, usage, error handling precedence, UNDO scope, and nested CATCH blocks.

• Introduction to CATCH blocks
• CATCH block syntax and usage
• Blocks that support CATCH blocks
• Precedence of CATCH blocks
• UNDO scope and relationship to a CATCH block
• CATCH blocks within CATCH blocks