cubrid_seq_drop

(PECL CUBRID >= 8.3.0)

cubrid_seq_drop — Delete an element from sequence type column using OID

说明

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

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

参数

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).

返回值

TRUE , when process is successful.

FALSE , when process is unsuccessful.

范例

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 );
 ?>

以上例程会输出：

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"
}

参见

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