sqlite_unbuffered_query

SQLiteDatabase->unbufferedQuery

(No version information available, might be only in CVS)

SQLiteDatabase->unbufferedQuery — Execute a query that does not prefetch and buffer all data

說明

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.

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().

參數

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: 可選的 result_type 參數接受一個常數並決定回傳的陣列如何索引。用 SQLITE_ASSOC 只會回傳關聯索引（有名稱欄位）而 SQLITE_NUM 只會回傳數字索引（有序欄位數）。SQLITE_BOTH 會同時回傳關聯和數字索引。 SQLITE_BOTH 是本函式的預設值。
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.