ROW_COUNT
Sintassi
ROW_COUNT()
Spiegazione
ROW_COUNT() restituisce il numero di righe inserite, modificate o eliminate dall'ultima istruzione. E' lo stesso numero visualizzato dal client mysql e restituito dalla funzione dell'API C mysql_affected_rows().
Esempi
MariaDB [test]> create table t (A INT); Query OK, 0 rows affected (0.08 sec) MariaDB [test]> INSERT INTO t VALUES(1),(2),(3); Query OK, 3 rows affected (0.00 sec) Records: 3 Duplicates: 0 Warnings: 0 MariaDB [test]> SELECT ROW_COUNT(); +-------------+ | ROW_COUNT() | +-------------+ | 3 | +-------------+ 1 row in set (0.00 sec) MariaDB [test]> DELETE FROM t WHERE A IN(1,2); Query OK, 2 rows affected (0.01 sec) MariaDB [test]> SELECT ROW_COUNT(); +-------------+ | ROW_COUNT() | +-------------+ | 2 | +-------------+ 1 row in set (0.00 sec) MariaDB [test]>
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