Use the Break key to perform the following function:
| Function | Results |
|---|---|
| Single-break | Interrupt BTEQ |
The break key command has the following syntax:
where:
<break_key> represents pressing the PA1 key on the mainframe keyboard.
<Unlocking_terminal> comprises the following sequence of steps:
- Press RESET
- Press PA1
- Press RESET
- Press PA1
When BTEQ is in the process of displaying multi-page output for a query, the keyboard is not locked and pressing the PA1 key sends a user interrupt to BTEQ.
In contrast, when the TSO terminal is waiting for an outstanding request, the keyboard is locked to prevent input. To unlock the terminal keyboard and send a user interrupt to BTEQ, follow the sequence of steps above to unlock the terminal and interrupt BTEQ.