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sqlite_unbuffered_query
Execute a query that does not prefetch and buffer all data
(PHP 5, PECL sqlite:1.0-1.0.3)
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]] )
Object oriented style (method):
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.
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_ASSOCwill return only associative indices (named fields) whileSQLITE_NUMwill return only numerical indices (ordinal field numbers).SQLITE_BOTHwill return both associative and numerical indices.SQLITE_BOTHis 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.
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.
| sqlite_query() |