maxdb_rollback
(no version information, might be only in CVS)
maxdb_rollback -- Rolls back current transaction
Description
bool
maxdb_rollback ( resource link )
Rollbacks the current transaction for the database specified by the
link parameter.
Return values
Retorna TRUE em caso de sucesso ou FALSE em falhas.
Example
Exemplo 1. Procedural style
<?php $link = maxdb_connect("localhost", "MONA", "RED");
/* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s\n", maxdb_connect_error()); exit(); }
/* disable autocommit */ maxdb_autocommit($link, FALSE);
maxdb_query($link, "CREATE TABLE temp.mycity LIKE hotel.city"); maxdb_query($link, "INSERT INTO temp.mycity SELECT * FROM hotel.city");
/* commit insert */ maxdb_commit($link);
/* delete all rows */ maxdb_query($link, "DELETE FROM temp.mycity");
if ($result = maxdb_query($link, "SELECT COUNT(*) FROM temp.mycity")) { $row = maxdb_fetch_row($result); printf("%d rows in table mycity.\n", $row[0]); /* Free result */ maxdb_free_result($result); }
/* Rollback */ maxdb_rollback($link);
if ($result = maxdb_query($link, "SELECT COUNT(*) FROM temp.mycity")) { $row = maxdb_fetch_row($result); printf("%d rows in table mycity (after rollback).\n", $row[0]); /* Free result */ maxdb_free_result($result); }
/* Drop table myCity */ maxdb_query($link, "DROP TABLE temp.mycity");
maxdb_close($link); ?>
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The above examples would produce the following output:
0 rows in table mycity.
25 rows in table mycity (after rollback). |