cubrid_seq_drop

(PECL CUBRID >= 8.3.0)

cubrid_seq_drop — Delete an element from sequence type column using OID

Descrizione

cubrid_seq_drop(
    resource $conn_identifier,
    string $oid,
    string $attr_name,
    int $index
): bool

The cubrid_seq_drop() function is used to delete an element you request from the given sequence type attribute in the database.

Elenco dei parametri

conn_identifier: Connection identifier.
oid: OID of the instance you want to work with.
attr_name: Name of the attribute that you want to delete an element from.
index: Index of the element that you want to delete (1-based).

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Esempi

Example #1 cubrid_seq_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 sequence(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, $oid, "c");
var_dump($attr);

cubrid_seq_drop($conn, $oid, "c", 4);

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

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

Il precedente esempio visualizzerà:

array(4) {
  [0]=>
  string(2) "11"
  [1]=>
  string(2) "22"
  [2]=>
  string(2) "33"
  [3]=>
  string(3) "333"
}
array(3) {
  [0]=>
  string(2) "11"
  [1]=>
  string(2) "22"
  [2]=>
  string(2) "33"
}

Vedere anche:

cubrid_seq_insert() - Insert an element to a sequence type column using OID
cubrid_seq_put() - Update the element value of sequence type column using OID

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