php教程

cubrid_drop

(PECL CUBRID >= 8.3.0)

cubrid_dropDelete an instance using OID

说明

cubrid_drop ( resource $conn_identifier , string $oid ) : bool

The cubrid_drop() function is used to delete an instance from database by using the oid of the instance.

参数

conn_identifier

Connection identifier.

oid

Oid of the instance that you want to delete.

返回值

TRUE, when process is successful.

FALSE, when process is unsuccessful.

范例

Example #1 cubrid_drop() example

<?php
$conn 
cubrid_connect("localhost"33000"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($req1CUBRID_CURSOR_FIRST);
$oid cubrid_current_oid($req);

printf("--- Before Drop: ---\n");
$attr cubrid_get($conn$oid);
var_dump($attr);

if (
cubrid_drop($conn$oid)) {
    
cubrid_commit($conn);
} else {
    
cubrid_rollback($conn);
}

cubrid_close_request($req);

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

cubrid_move_cursor($req1CUBRID_CURSOR_FIRST);
$oid cubrid_current_oid($req);

printf("\n--- After Drop: ---\n");
$attr cubrid_get($conn$oid);
var_dump($attr);

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

以上例程会输出:

--- Before Drop: ---
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         "
}

--- After Drop: ---
array(4) {
  ["a"]=>
  string(1) "2"
  ["b"]=>
  array(3) {
    [0]=>
    string(1) "4"
    [1]=>
    string(1) "5"
    [2]=>
    string(1) "7"
  }
  ["c"]=>
  array(4) {
    [0]=>
    string(2) "44"
    [1]=>
    string(2) "55"
    [2]=>
    string(2) "66"
    [3]=>
    string(3) "666"
  }
  ["d"]=>
  string(10) "b         "
}

参见

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