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Run a SQL statement and return 1 if a value was found, or 0 if no record exists
Executes a SQL statement and checks whether the result is non-empty. Returns "1" in the result buffer if a non-null value was returned, "0" otherwise. Use for conditional branching based on record existence.
| Parameter | Description |
|---|---|
| cmd | SQL statement to execute (should return a single value) |
Exists "SQL statement to execute (should return a single value)"