Mordant Monks,

I need to do repeated insertions over many tables: 

for $t (0 .. 1000) {
     $table_name = $tables[$t];
     $theValue = $values[$t];
     $sql = "INSERT INTO r".$table_name." VALUES ($theValue)";
     $std = $dbh->prepare($sql) or die("Could not prepare! At table = 
+$table_name because " . $dbh->errstr);
     $std->execute() or die("Could not execute!" . $dbh->errstr);
}

[download]
This is proving very slow, partly, I suspect, because of the new prepare for every insert. If I could use placeholders for both $table_name and $theValue, I could probably save a lot of time. Is there some way to do this, or can placeholders ony be used for the values?

If I'm bothering the monastery with this, it's because I've already tried thihngs along the lines of 

$sql = "INSERT INTO ? VALUES (?)";
$std = $dbh->prepare($sql) or die("Could not prepare! At table = $tabl
+e_name because " . $dbh->errstr);
     
for $t (0 .. 1000) {
     $table_name = r.$tables[$t];
     $theValue = $values[$t];
$std->execute($table_name , $theValue) or die("Could not execute!" . $
+dbh->errstr);
}

[download]
with dismal results.

Thanks.

In reply to DBI: Use placeholders for table name? by punch_card_don

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