Re: what is better way to write the query

let me write the questions again: what is the difference between these two queries? is there any situation when it's better to use first vs. second solution? is there any suggestion for the process of inserting up to 5K records at the time or this number is so small to consider any "optimization"? sorry for "english" :-) -afan afan pasalic wrote: > hi, > it's maybe more question for mysql list, but since php is involved > too... :-) > I have php script that inserts into mysql table couple hundreds of records. > usually, it looks like: > <?php > // 1st record > $query = "INSERT INTO table (col_11, col_12, ... col_1n) VALUES > ($value_11, $value_12,... $value_1n )"; > mysql_query($query) or die ($mysql_error()); > > // 2nd record > $query = "INSERT INTO table (col_21, col_22, ... col_2n) VALUES > ($value_21, $value_22,... $value_2n )"; > mysql_query($query) or die ($mysql_error()); > > ... > // last record > $query = "INSERT INTO table (col_m1, col_m2, ... col_mn) VALUES > ($value_m1, $value_m2,... $value_mn )"; > mysql_query($query) or die ($mysql_error()); > > > It also works this way: > $query = "INSERT INTO table (col_m1, col_m2, ... col_mn) VALUES"; > $query .= "($value_m1, $value_m2,... $value_mn ), "; > $query .= "($value_21, $value_22,... $value_2n ), "; > ... > $query .= "($value_m1, $value_m2,... $value_mn )"; > mysql_query($query) or die ($mysql_error()); > > is what's the difference between these two queries? > is there any situations when is better to use first vs. second? > any suggestion for the process of inserting up to 5K records at the time > or this number is so small to consider any "optimization"? > > thanks for any help. > > -afan > >