cubrid_set_drop

Delete an element from set type column using OID

説明

bool cubrid_set_drop(
    resource $conn_identifier,
    string $oid,
    string $attr_name,
    string $set_element
)

The cubrid_set_drop function is used to delete an element that you request from the given set type (set, multiset) attribute of the database.

パラメータ

conn_identifier: Connection identifier.
oid: OID of the instance you want to work with.
attr_name: Name of the attribute you want to delete an element from.
set_element: Content of the element you want to delete.

戻り値

成功した場合に true を、失敗した場合に false を返します。

例

例1 cubrid_set_drop example

<?php
$conn = cubrid_connect("localhost", 33000, "demodb", "dba");

@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')");

$req = cubrid_execute($conn, "SELECT * FROM foo", CUBRID_INCLUDE_OID);

cubrid_move_cursor($req, 1, CUBRID_CURSOR_FIRST);
$oid = cubrid_current_oid($req);

$attr = cubrid_col_get($conn, $oid, "b");
var_dump($attr);

cubrid_set_drop($conn, $oid, "b", "1");

$attr = cubrid_col_get($conn, $oid, "b");
var_dump($attr);

cubrid_close_request($req);
cubrid_disconnect($conn);
?>

上の例の出力は以下となります。

array(3) {
  [0]=>
  string(1) "1"
  [1]=>
  string(1) "2"
  [2]=>
  string(1) "3"
}
array(2) {
  [0]=>
  string(1) "2"
  [1]=>
  string(1) "3"
}

参考

cubrid_set_add