05-17-2013
Locks and long transactions (45 sec) says naughty programming, queries or missing indexes (no valid plan). If inside a SP a transaction churns say 5 tables using well indexed plans for all where, you never get much past a second each.
Keeping the RDBMS together is one reason service queues were invented. More than N clients can reduce performance. Using well written SP to do one row churn saves compile/plan time. Having a server reuse the connection for N sequential operations beats N sequential connections, too. JAVA connection pools do this.
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LEARN ABOUT DEBIAN
sql::reservedwords::mysql
SQL::ReservedWords::MySQL(3pm) User Contributed Perl Documentation SQL::ReservedWords::MySQL(3pm)
NAME
SQL::ReservedWords::MySQL - Reserved SQL words by MySQL
SYNOPSIS
if ( SQL::ReservedWords::MySQL->is_reserved( $word ) ) {
print "$word is a reserved MySQL word!";
}
DESCRIPTION
Determine if words are reserved by MySQL.
METHODS
is_reserved( $word )
Returns a boolean indicating if $word is reserved by either MySQL 3.2, 4.0, 4.1, 5.0 or 5.1.
is_reserved_by_mysql3( $word )
Returns a boolean indicating if $word is reserved by MySQL 3.2.
is_reserved_by_mysql4( $word )
Returns a boolean indicating if $word is reserved by either MySQL 4.0 or 4.1.
is_reserved_by_mysql5( $word )
Returns a boolean indicating if $word is reserved by either MySQL 5.0 or 5.1.
reserved_by( $word )
Returns a list with MySQL versions that reserves $word.
words
Returns a list with all reserved words.
EXPORTS
Nothing by default. Following subroutines can be exported:
is_reserved
is_reserved_by_mysql3
is_reserved_by_mysql4
is_reserved_by_mysql5
reserved_by
words
SEE ALSO
SQL::ReservedWords
<http://dev.mysql.com/doc/>
AUTHOR
Christian Hansen "chansen@cpan.org"
COPYRIGHT
This program is free software, you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.8.8 2008-03-28 SQL::ReservedWords::MySQL(3pm)