sqlite_unbuffered_query
SQLiteDatabase->unbufferedQuery
(PHP 5, PECL sqlite:1.0-1.0.3)
sqlite_unbuffered_query -- SQLiteDatabase->unbufferedQuery — Execute a query that does not prefetch and buffer all data
Description
resource sqlite_unbuffered_query
( resource $dbhandle
, string $query
[, int $result_type
[, string &$error_msg
]] )
resource sqlite_unbuffered_query
( string $query
, resource $dbhandle
[, int $result_type
[, string &$error_msg
]] )
SQLiteDatabase
SQLiteUnbuffered unbufferedQuery
( string $query
[, int $result_type
[, string &$error_msg
]] )
sqlite_unbuffered_query() is identical to
sqlite_query() except that the result that is returned
is a sequential forward-only result set that can only be used to read
each row, one after the other.
This function is ideal for generating things such as HTML tables where
you only need to process one row at a time and don't need to randomly
access the row data.
Note:
Functions such as sqlite_seek(),
sqlite_rewind(), sqlite_next(),
sqlite_current(), and
sqlite_num_rows() do not work on result handles
returned from sqlite_unbuffered_query().
Parameters
-
dbhandle
-
The SQLite Database resource; returned from
sqlite_open() when used procedurally. This parameter
is not required when using the object-oriented method.
-
query
-
The query to be executed.
-
result_type
-
The optional result_type
parameter accepts a constant and determines how the returned array will be
indexed. Using SQLITE_ASSOC will return only associative
indices (named fields) while SQLITE_NUM will return
only numerical indices (ordinal field numbers). SQLITE_BOTH
will return both associative and numerical indices.
SQLITE_BOTH is the default for this function.
-
error_msg
-
The specified variable will be filled if an error occurs. This is
specially important because SQL syntax errors can't be fetched using
the sqlite_last_error() function.
Note: Two alternative syntaxes are
supported for compatibility with other database extensions (such as MySQL).
The preferred form is the first, where the dbhandle
parameter is the first parameter to the function.
Return Values
Returns a result handle or FALSE on failure.
sqlite_unbuffered_query() returns a sequential
forward-only result set that can only be used to read each row, one after
the other.
Load balance : Server 04
