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Programming the Perl DBI
book

Programming the Perl DBI

by Tim Bunce, Alligator Descartes
February 2000
Intermediate to advanced content levelIntermediate to advanced
364 pages
11h 47m
English
O'Reilly Media, Inc.
Content preview from Programming the Perl DBI

Notation and Conventions

The following conventions are used in this document:

$dbh

Database handle object

$sth

Statement handle object

$drh

Driver handle object (rarely seen or used in applications)

$h

Any of the handle types above ($dbh, $sth, or $drh)

$rc

General return code (boolean: true=ok, false=error)

$rv

General Return Value (typically an integer)

@ary

List of values returned from the database, typically a row of data

$rows

Number of rows processed (if available, else -1)

$fh

A filehandle

undef

NULL values are represented by undefined values in Perl

\%attr

Reference to a hash of attribute values passed to methods

Note that Perl will automatically destroy database and statement handle objects if all references to them are deleted.

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Publisher Resources

ISBN: 1565926994Supplemental ContentErrata Page