php - Combining 2 queries into 1 -


i'm looking optimize 2 queries one, if possible.

my first query searches authors of lyrics... then, each author found, want find total numbers of lyrics author involded in...

right now, im executing first query , each row found, i'm launching query authors total lyrics involved... so, if there 4 authors end launching 4 more queries... many queries in opinion. why i've decided write here, can on how optimize query...

this query i'm executing author(s) responsable lyrics:

$sql = "select author.author_id, author.name     track inner join lyrics_author on track.lyrics_id = lyrics_author.lyrics_id     inner join author on lyrics_author.author_id = author.author_id     track.track_id = $trackid "; 

this query total number of lyrics author writing:

$total = "select lyrics_author.author_id, count(*) total     lyrics_author     lyrics_author.author_id = $author_id     group lyrics_author.author_id"; 

this sample of code:

<?php $trackid = 5;  $sql = "select author.author_id, author.name     track inner join lyrics_author on track.lyrics_id = lyrics_author.lyrics_id     inner join author on lyrics_author.author_id = author.author_id     track.track_id = $trackid ";  $result_author = @ $conn->query($sql);  while ($row_author = $result_author->fetch_assoc()) {     $author_id = $row_author['author_id'];      $total = "select lyrics_author.author_id, count(*) total         lyrics_author         lyrics_author.author_id = $author_id         group lyrics_author.author_id";      $result_total_lyrics = @ $conn->query($total);     $t = $result_total_lyrics->fetch_assoc();      echo $t['total'];      $result_total_lyrics->free(); }  $result_author->free(); ?> 

is posible optimize query? if yes, how? there link refer, can learn...

thanks marco

select   author.author_id,   author.name,   count(distinct more_tracks.lyrics_id) total track inner join lyrics_author using (lyrics_id) inner join author using (author_id) left join lyrics_author more_tracks using (author_id) track.track_id = $trackid group author.author_id 

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