Datastage Triggers

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There are three types of trigger:
Conditional. A conditional trigger fires the target activity if the source activity fulfills the specified condition. The condition is defined by an expression, and can be one of the following types:
OK. Activity succeeds.
Failed. Activity fails.
Warnings. Activity produced warnings.
ReturnValue. A routine or command has returned a value.
Custom. Allows you to define a custom expression.
User status. Allows you to define a custom status message to write to the log.
Unconditional. An unconditional trigger fires the target activity once the source activity completes, regardless of what other triggers are fired from the same activity.
Otherwise. An otherwise trigger is used as a default where a source activity has multiple output triggers, but none of the conditional ones have fired.