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SQL::Translator::Producer::Oracle(3) User Contributed Perl Documentation SQL::Translator::Producer::Oracle(3)
 

SQL::Translator::Producer::Oracle - Oracle SQL producer

  use SQL::Translator;
  my $t = SQL::Translator->new( parser => '...', producer => 'Oracle' );
  print $translator->translate( $file );

Creates an SQL DDL suitable for Oracle.

delay_constraints
This option remove the primary key and other key constraints from the CREATE TABLE statement and adds ALTER TABLEs at the end with it.
quote_field_names
Controls whether quotes are being used around column names in generated DDL.
quote_table_names
Controls whether quotes are being used around table, sequence and trigger names in generated DDL.

This producer uses sequences and triggers to autoincrement primary key columns, if necessary. SQLPlus and DBI expect a slightly different syntax of CREATE TRIGGER statement. You might have noticed that this producer returns a scalar containing all statements concatenated by newlines or an array of single statements depending on the context (scalar, array) it has been called in.
SQLPlus expects following trigger syntax:
    CREATE OR REPLACE TRIGGER ai_person_id
    BEFORE INSERT ON person
    FOR EACH ROW WHEN (
     new.id IS NULL OR new.id = 0
    )
    BEGIN
     SELECT sq_person_id.nextval
     INTO :new.id
     FROM dual;
    END;
    /
Whereas if you want to create the same trigger using "do" in DBI, you need to omit the last slash:
    my $dbh = DBI->connect('dbi:Oracle:mysid', 'scott', 'tiger');
    $dbh->do("
        CREATE OR REPLACE TRIGGER ai_person_id
        BEFORE INSERT ON person
        FOR EACH ROW WHEN (
         new.id IS NULL OR new.id = 0
        )
        BEGIN
         SELECT sq_person_id.nextval
         INTO :new.id
         FROM dual;
        END;
    ");
If you call this producer in array context, we expect you want to process the returned array of statements using DBI like "deploy" in DBIx::Class::Schema does.
To get this working we removed the slash in those statements in version 0.09002 of SQL::Translator when called in array context. In scalar context the slash will be still there to ensure compatibility with SQLPlus.

Mad props to Tim Bunce for much of the logic stolen from his "mysql2ora" script.

Ken Youens-Clark <kclark@cpan.org>, Alexander Hartmaier <abraxxa@cpan.org>, Fabien Wernli <faxmodem@cpan.org>.

SQL::Translator, DDL::Oracle, mysql2ora.
2017-03-22 perl v5.28.1

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