| 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. |
Datastage Triggers
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