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# MDB_Common::queryOne()

MDB_Common::queryOne() -- fetch the first column of the first row

## Synopsis

    require_once 'MDB.php';

``mixed &queryOne` (string $query, string [$type = `NULL`])`

## Description

Fetch the first column of the first row of data returned from a query. The function takes care of doing the query and freeing the results when finished.

## Parameter

string `$query`

  the SQL query or the statement to prepare

string `$type`

  if supplied, the type of the cell in the result set will be set for fetching

## Return value

`mixed` - the returned value or a MDB_Error, if fail

## Throws

Table 33-1. Possible PEAR_Error values

Error code | Error message | Reason | Solution
--- | --- | --- | ---
`MDB_ERROR_NO_DB_SELECTED` | `NULL` | No database was choosen. | Check the DSN in connect() .
every other error code |  | Database specific error | Check the database related section of PHP-Manual to detect the reason for this error. In the most cases a misformed SQL statment. Ie. using LIMIT in a SQL-Statment for an Oracle database.

## Note

This function can not be called statically.

## See

query() , limitQuery() , prepareQuery() , executeQuery() , queryRow() , queryCol() , queryCol()

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MDB_Common::queryCol() | Up | MDB_Common::queryRow()