Re^5: How to improve MYSQL search performance of perl?

Can you post your revised code? Are you re-using the statement handle? What's the error in the error_log (or if you run on command line)?

Also, try adding $|=1; in your script to make sure it's not buffereing so yuo'll see output as it's happening.

If the loop to execute the queries is good now (resuing handles, etc), then this probably just goes back to the issue mentioned elsewhere in this thread about SQL performance .. the speed will depend entirely on your SQL, table schema, and indexes (can you provide any of those?).

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Re^6: How to improve MYSQL search performance of perl? by nan (Novice) on Aug 25, 2005 at 16:01 UTC
Hi, After reading through Chapter 10 in MySQL Reference Manual, I'm trying to rebuild the table and index and I'll let you know what happens after that. Actually, the error log just says "personal.pl: Unrecognized escape \\h passed through at F:/httpserv/Top/cgi-bin/personal.pl line 11., referer: http://localhost/form.html" but the line 18 is about database connection: my $dbh = DBI->connect('DBI:mysql:diet', $ref) \|\| die "Failed to connect: $DBI::errstr"; And it's weird that the script works fine without using Apache server... Many thanks, Nan	[reply]
Re^7: How to improve MYSQL search performance of perl? by davidrw (Prior) on Aug 25, 2005 at 17:44 UTC
error says line 11, you say that line 18 is the DBI connect line... can you provide the whole (or at least top section) of the script? If you search, is there a " \h" anywhere (in a windows-style filename maybe)?	[reply]