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.\" ========================================================================
.\"
.IX Title "MySQL::Diff 3"
.TH MySQL::Diff 3 "2016-07-22" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
MySQL::Diff \- Generates a database upgrade instruction set
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&  use MySQL::Diff;
\&
\&  my $md = MySQL::Diff\->new( %options );
\&  my $db1 = $md\->register_db($ARGV[0], 1);
\&  my $db2 = $md\->register_db($ARGV[1], 2);
\&  my $diffs = $md\->diff();
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Generates the \s-1SQL\s0 instructions required to upgrade the first database to match
the second.
.SH "METHODS"
.IX Header "METHODS"
.SS "Constructor"
.IX Subsection "Constructor"
.ie n .IP "new( %options )" 4
.el .IP "new( \f(CW%options\fR )" 4
.IX Item "new( %options )"
Instantiate the objects, providing the command line options for database
access and process requirements.
.SS "Public Methods"
.IX Subsection "Public Methods"
Fuller documentation will appear here in time :)
.IP "\(bu" 4
register_db($name,$inx)
.Sp
Reference the database, and setup a connection. The name can be an already
existing 'MySQL::Diff::Database' database object. The index can be '1' or '2',
and refers both to the order of the diff, and to the host, port, username and
password arguments that have been supplied.
.IP "\(bu" 4
\&\fIdb1()\fR
.IP "\(bu" 4
\&\fIdb2()\fR
.Sp
Return the first and second databases registered via \f(CW\*(C`register_db()\*(C'\fR.
.IP "\(bu" 4
\&\fIdiff()\fR
.Sp
Performs the diff, returning a string containing the commands needed to change
the schema of the first database into that of the second.
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright (c) 2000\-2016 Adam Spiers. All rights reserved. This
program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
mysqldiff, MySQL::Diff::Database, MySQL::Diff::Table, MySQL::Diff::Utils
.SH "AUTHOR"
.IX Header "AUTHOR"
Adam Spiers <mysqldiff@adamspiers.org>