ManuelSimon
/ transacciones_rollback.sql
Created
October 14, 2017 18:46
— forked from emersoncortez/transacciones_rollback.sql
Transacciones con PostgreSQL - ROLLBACK.
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| -- La cuenta A será cargada (se le quitará) y | |
| -- la cuenta B será abonada (se le sumará) | |
| -- Inicio de la transacción | |
| BEGIN; | |
| -- Cargando la cuenta A. | |
| UPDATE cuentas SET saldo_cuenta = saldo_cuenta - monto WHERE nombre_cuenta = 'A'; | |
| -- Abonando la cuenta B. |