cubrid_lock_read

(PECL CUBRID >= 8.3.0)

cubrid_lock_read — Set a read lock on the given OID

Описание

The cubrid_lock_read() function is used to put read lock on the instance pointed by given oid.

Список параметров

conn_identifier -

Connection identifier.

oid -

OID of the instance that you want to put read lock on.

Возвращаемые значения

TRUE, when process is successful.

FALSE, when process is unsuccessful.

Примеры

Пример #1 cubrid_lock_read() example

$conn = cubrid_connect("localhost", 33088, "demodb");
@cubrid_execute($conn, "DROP TABLE foo");
cubrid_execute($conn, "CREATE TABLE foo(a int AUTO_INCREMENT, b set(int), c list(int), d char(10))");
cubrid_execute($conn, "INSERT INTO foo(a, b, c, d) VALUES(1, {1,2,3}, {11,22,33,333}, 'a')");
cubrid_execute($conn, "INSERT INTO foo(a, b, c, d) VALUES(2, {4,5,7}, {44,55,66,666}, 'b')");
$req = cubrid_execute($conn, "SELECT * FROM foo", CUBRID_INCLUDE_OID);
cubrid_move_cursor($req, 1, CUBRID_CURSOR_FIRST);
$oid = cubrid_current_oid($req);
cubrid_lock_read($conn, $oid);
$attr = cubrid_get($conn, $oid, "b");
var_dump($attr);
$attr = cubrid_get($conn, $oid);
var_dump($attr);
cubrid_close_request($req);
cubrid_disconnect($conn);

Результат выполнения данного примера:

string(9) "{1, 2, 3}"
array(4) {
["a"]=>
string(1) "1"
["b"]=>
array(3) {
[0]=>
string(1) "1"
[1]=>
string(1) "2"
[2]=>
string(1) "3"
}
["c"]=>
array(4) {
[0]=>
string(2) "11"
[1]=>
string(2) "22"
[2]=>
string(2) "33"
[3]=>
string(3) "333"
}
["d"]=>
string(10) "a "
}

Смотрите также

• cubrid_lock_write() - Set a write lock on the given OID