(PHP 5 < 5.4.0, PECL sqlite >= 1.0.0)
sqlite_unbuffered_query -- SQLiteDatabase::unbufferedQuery — Execute a query that does not prefetch and buffer all data
$dbhandle
, string $query
[, int $result_type
= SQLITE_BOTH
[, string &$error_msg
]] ) : resource$query
, resource $dbhandle
[, int $result_type
= SQLITE_BOTH
[, string &$error_msg
]] ) : resource��������� (method):
$query
[, int $result_type
= SQLITE_BOTH
[, string &$error_msg
]] ) : SQLiteUnbufferedsqlite_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().
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.
Data inside the query should be properly escaped.
result_type
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SQLITE_ASSOC
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SQLITE_NUM
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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.
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dbhandle
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Returns a result handle ������ʧ��ʱ���� FALSE
.
sqlite_unbuffered_query() returns a sequential forward-only result set that can only be used to read each row, one after the other.
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5.1.0 |
Added the error_msg parameter
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