# Săpt 2 Notes — Oracle OUT Param Probe

**Script**: `poc/async_out_param_probe.py`
**Date**: 2026-04-11
**Status**: PASSED ✅

## Latency (measured 2026-04-11)

| Operation | Time |
|-----------|------|
| connect | 21.9ms |
| CREATE PROCEDURE | 9.2ms |
| callproc (OUT param) | 1.0ms |
| DROP PROCEDURE | 54.6ms |
| **Total** | **87.5ms** |

## OUT Param Result

- Procedure: `MARIUSM_AUTO.test_out(p OUT NUMBER)` sets `p := 42`
- Python: `cursor.var(oracledb.NUMBER)` → `cursor.callproc(...)` → `out_var.getvalue()` = **42.0**
- Assert `== 42`: **PASSED**

## Cleanup

- `DROP PROCEDURE MARIUSM_AUTO.test_out` executed successfully
- Cleanup OK ✅ — no residual objects left in schema

## Key Findings

- `oracledb.cursor.var(oracledb.NUMBER)` correctly round-trips Oracle `OUT NUMBER` parameters
- The returned value from `.getvalue()` is a Python `float` (42.0), so `int()` cast is needed for IDs
- `callproc` latency is ~1ms once connected — Oracle OUT params add negligible overhead
- DDL (CREATE/DROP) requires ~10-55ms each — avoid in hot paths
- This pattern matches exactly what `ComandaService.creeaza_comanda()` uses for `out_id_ordl` and `out_nrord`