NAME DBIx::RunSQL - run SQL from a file SYNOPSIS #!/usr/bin/perl -w use strict; use lib 'lib'; use DBIx::RunSQL; my $test_dbh = DBIx::RunSQL->create( dsn => 'dbi:SQLite:dbname=:memory:', sql => 'sql/create.sql', force => 1, verbose => 1, ); ... # run your tests with a DB setup fresh from setup.sql METHODS DBIx::RunSQL->create ARGS DBIx::RunSQL->run ARGS Runs the SQL commands and returns the database handle * sql - name of the file containing the SQL statements The default is sql/create.sql If sql is a reference to a glob or a filehandle, the SQL will be read from that. not implemented If sql is undefined, the $::DATA or the 0 filehandle will be read until exhaustion. not implemented This allows to create SQL-as-programs as follows: #!/usr/bin/perl -w -MDBIx::RunSQL=create create table ... If you want to run SQL statements from a scalar, you can simply pass in a reference to a scalar containing the SQL: sql => \"update mytable set foo='bar';", * dsn, user, password - DBI parameters for connecting to the DB * dbh - a premade database handle to be used instead of dsn * force - continue even if errors are encountered * verbose - print each SQL statement as it is run * verbose_handler - callback to call with each SQL statement instead of print * verbose_fh - filehandle to write to instead of STDOUT DBIx::RunSQL->run_sql_file ARGS my $dbh = DBI->connect(...) for my $file (sort glob '*.sql') { DBIx::RunSQL->run_sql_file( verbose => 1, dbh => $dbh, sql => $file, ); }; Runs an SQL file on a prepared database handle. Returns the number of errors encountered. If the statement returns rows, these are printed separated with tabs. * dbh - a premade database handle * sql - name of the file containing the SQL statements * force - continue even if errors are encountered * verbose - print each SQL statement as it is run * verbose_handler - callback to call with each SQL statement instead of print * verbose_fh - filehandle to write to instead of STDOUT DBIx::RunSQL->run_sql ARGS my $dbh = DBI->connect(...) for my $file (sort glob '*.sql') { DBIx::RunSQL->run_sql_file( verbose => 1, dbh => $dbh, sql => 'create table foo', ); }; Runs an SQL string on a prepared database handle. Returns the number of errors encountered. If the statement returns rows, these are printed separated with tabs. * dbh - a premade database handle * sql - string or array reference containing the SQL statements * force - continue even if errors are encountered * verbose - print each SQL statement as it is run * verbose_handler - callback to call with each SQL statement instead of print * verbose_fh - filehandle to write to instead of STDOUT DBIx::RunSQL->format_results %options my $sth= $dbh->prepare( 'select * from foo' ); $sth->execute(); print DBIx::RunSQL->format_results( sth => $sth ); Executes $sth->fetchall_arrayref and returns the results either as tab separated string or formatted using Text::Table if the module is available. If you find yourself using this often to create reports, you may really want to look at Querylet instead. * sth - the executed statement handle * formatter - if you want to force tab or Text::Table usage, you can do it through that parameter. In fact, the module will use anything other than tab as the class name and assume that the interface is compatible to Text::Table. Note that the query results are returned as one large string, so you really do not want to run this for large(r) result sets. DBIx::RunSQL->split_sql ARGS my @statements= DBIx::RunSQL->split_sql( <<'SQL'); create table foo (name varchar(64)); create trigger foo_insert on foo before insert; new.name= 'foo-'||old.name; end; insert into foo name values ('bar'); SQL # Returns three elements This is a helper subroutine to split a sequence of (semicolon-newline-delimited) SQL statements into separate statements. It is documented because it is not a very smart subroutine and you might want to override or replace it. It might also be useful outside the context of DBIx::RunSQL if you need to split up a large blob of SQL statements into smaller pieces. The subroutine needs the whole sequence of SQL statements in memory. If you are attempting to restore a large SQL dump backup into your database, this approach might not be suitable. PROGRAMMER USAGE This module abstracts away the "run these SQL statements to set up your database" into a module. In some situations you want to give the setup SQL to a database admin, but in other situations, for example testing, you want to run the SQL statements against an in-memory database. This module abstracts away the reading of SQL from a file and allows for various command line parameters to be passed in. A skeleton create-db.sql looks like this: #!/usr/bin/perl -w use strict; use lib 'lib'; use DBIx::RunSQL; DBIx::RunSQL->handle_command_line('myapp'); =head1 NAME create-db.pl - Create the database =head1 ABSTRACT This sets up the database. The following options are recognized: =over 4 =item C<--user> USERNAME =item C<--password> PASSWORD =item C<--dsn> DSN The DBI DSN to use for connecting to the database =item C<--sql> SQLFILE The alternative SQL file to use instead of C. =item C<--force> Don't stop on errors =item C<--help> Show this message. =cut DBIx::RunSQL->handle_command_line Parses the command line. This is a convenience method, which passes the following command line arguments to ->create: --user --password --dsn --sql --force --verbose In addition, it handles the following switches through Pod::Usage: --help --man See also the section PROGRAMMER USAGE for a sample program to set up a database from an SQL file. NOTES COMMENT FILTERING The module tries to keep the SQL as much verbatim as possible. It filters all lines that end in semicolons but contain only SQL comments. All other comments are passed through to the database with the next statement. TRIGGER HANDLING This module uses a very simplicistic approach to recognize triggers. Triggers are problematic because they consist of multiple SQL statements and this module does not implement a full SQL parser. An trigger is recognized by the following sequence of lines CREATE TRIGGER ... END; If your SQL dialect uses a different syntax, it might still work to put the whole trigger on a single line in the input file. OTHER APPROACHES If you find yourself wanting to write SELECT statements, consider looking at Querylet instead, which is geared towards that and even has an interface for Excel or HTML output. If you find yourself wanting to write parametrized queries as .sql files, consider looking at Data::Phrasebook::SQL or potentially DBIx::SQLHandler. SEE ALSO ORLite::Migrate REPOSITORY The public repository of this module is http://github.com/Corion/DBIx--RunSQL. SUPPORT The public support forum of this module is http://perlmonks.org/. BUG TRACKER Please report bugs in this module via the RT CPAN bug queue at https://rt.cpan.org/Public/Dist/Display.html?Name=DBIx-RunSQL or via mail to bug-dbix-runsql@rt.cpan.org. AUTHOR Max Maischein corion@cpan.org COPYRIGHT (c) Copyright 2009-2014 by Max Maischein corion@cpan.org. LICENSE This module is released under the same terms as Perl itself.