[dbsrgits/DBIx-Class.git] / t / 73oracle_hq.t

use strict;
use warnings;

use Test::Exception;
use Test::More;

# I *strongly* suspect Oracle has an implicit stable output order when
# dealing with HQs. So just punt on the entire shuffle thing.
BEGIN { $ENV{DBIC_SHUFFLE_UNORDERED_RESULTSETS} = 0 }


use DBIx::Class::Optional::Dependencies ();
use lib qw(t/lib);

$ENV{NLS_SORT} = "BINARY";
$ENV{NLS_COMP} = "BINARY";
$ENV{NLS_LANG} = "AMERICAN";

my ($dsn,  $user,  $pass)  = @ENV{map { "DBICTEST_ORA_${_}" }  qw/DSN USER PASS/};

plan skip_all => 'Set $ENV{DBICTEST_ORA_DSN}, _USER and _PASS to run this test.'
 unless ($dsn && $user && $pass);

plan skip_all => 'Test needs ' . DBIx::Class::Optional::Dependencies->req_missing_for ('rdbms_oracle')
  unless DBIx::Class::Optional::Dependencies->req_ok_for ('rdbms_oracle');

use DBICTest::Schema::Artist;
BEGIN {
  DBICTest::Schema::Artist->add_column('parentid');

  DBICTest::Schema::Artist->has_many(
    children => 'DBICTest::Schema::Artist',
    { 'foreign.parentid' => 'self.artistid' }
  );

  DBICTest::Schema::Artist->belongs_to(
    parent => 'DBICTest::Schema::Artist',
    { 'foreign.artistid' => 'self.parentid' }
  );
}

use DBICTest;
use DBICTest::Schema;

my $schema = DBICTest::Schema->connect($dsn, $user, $pass);

note "Oracle Version: " . $schema->storage->_server_info->{dbms_version};

my $dbh = $schema->storage->dbh;
do_creates($dbh);

### test hierarchical queries
{
  $schema->resultset('Artist')->create ({
    name => 'root',
    rank => 1,
    cds => [],
    children => [
      {
        name => 'child1',
        rank => 2,
        children => [
          {
            name => 'grandchild',
            rank => 3,
            cds => [
              {
                title => "grandchilds's cd" ,
                year => '2008',
                tracks => [
                  {
                    position => 1,
                    title => 'Track 1 grandchild',
                  }
                ],
              }
            ],
            children => [
              {
                name => 'greatgrandchild',
                rank => 3,
              }
            ],
          }
        ],
      },
      {
        name => 'child2',
        rank => 3,
      },
    ],
  });

  $schema->resultset('Artist')->create({
    name => 'cycle-root',
    children => [
      {
        name => 'cycle-child1',
        children => [ { name => 'cycle-grandchild' } ],
      },
      {
        name => 'cycle-child2'
      },
    ],
  });

  $schema->resultset('Artist')->find({ name => 'cycle-root' })
    ->update({ parentid => { -ident => 'artistid' } });

  # select the whole tree
  {
    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
    });

    is_deeply (
      [ $rs->get_column ('name')->all ],
      [ qw/root child1 grandchild greatgrandchild child2/ ],
      'got artist tree',
    );

    is( $rs->count, 5, 'Connect By count ok' );
  }

  # use order siblings by statement
  SKIP: {
    # http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
    skip q{Oracle8i doesn't support ORDER SIBLINGS BY}, 1
      if $schema->storage->_server_info->{normalized_dbms_version} < 9;

    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident =>  'artistid' } } },
      order_siblings_by => { -desc => 'name' },
    });

    is_deeply (
      [ $rs->get_column ('name')->all ],
      [ qw/root child2 child1 grandchild greatgrandchild/ ],
      'Order Siblings By ok',
    );
  }

  # get the root node
  {
    my $rs = $schema->resultset('Artist')->search({ parentid => undef }, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
    });

    is_deeply(
      [ $rs->get_column('name')->all ],
      [ 'root' ],
      'found root node',
    );
  }

  # combine a connect by with a join
  SKIP: {
    # http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
    skip q{Oracle8i doesn't support connect by with join}, 1
      if $schema->storage->_server_info->{normalized_dbms_version} < 9;

    my $rs = $schema->resultset('Artist')->search(
      {'cds.title' => { -like => '%cd'} },
      {
        join => 'cds',
        start_with => { 'me.name' => 'root' },
        connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
      }
    );

    is_deeply(
      [ $rs->get_column('name')->all ],
      [ 'grandchild' ],
      'Connect By with a join result name ok'
    );

    is( $rs->count, 1, 'Connect By with a join; count ok' );
  }

  # combine a connect by with order_by
  {
    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
      order_by => { -asc => [ 'LEVEL', 'name' ] },
    });

    # Don't use "$rs->get_column ('name')->all" they build a query arround the $rs.
    #   If $rs has a order by, the order by is in the subquery and this doesn't work with Oracle 8i.
    # TODO: write extra test and fix order by handling on Oracle 8i
    is_deeply (
      [ map { $_->[1] } $rs->cursor->all ],
      [ qw/root child1 child2 grandchild greatgrandchild/ ],
      'Connect By with a order_by - result name ok (without get_column)'
    );

    SKIP: {
      skip q{Connect By with a order_by - result name ok (with get_column), Oracle8i doesn't support order by in a subquery},1
        if $schema->storage->_server_info->{normalized_dbms_version} < 9;
      is_deeply (
        [  $rs->get_column ('name')->all ],
        [ qw/root child1 child2 grandchild greatgrandchild/ ],
        'Connect By with a order_by - result name ok (with get_column)'
      );
    }
  }


  # limit a connect by
  SKIP: {
    skip q{Oracle8i doesn't support order by in a subquery}, 1
      if $schema->storage->_server_info->{normalized_dbms_version} < 9;

    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
      order_by => [ { -asc => 'name' }, {  -desc => 'artistid' } ],
      rows => 2,
    });

    is_deeply (
      [ $rs->get_column ('name')->all ],
      [qw/child1 child2/],
      'LIMIT a Connect By query - correct names'
    );

    is( $rs->count, 2, 'Connect By; LIMIT count ok' );
  }

  # combine a connect_by with group_by and having
  # add some bindvals to make sure things still work
  {
    my $rs = $schema->resultset('Artist')->search({}, {
      select => \[ 'COUNT(rank) + ?', [ __cbind => 3 ] ],
      as => 'cnt',
      start_with => { name => 'root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
      group_by => \[ 'rank + ? ', [ __gbind =>  1] ],
      having => \[ 'count(rank) < ?', [ cnt => 2 ] ],
    });

    is_deeply (
      [ $rs->get_column ('cnt')->all ],
      [4, 4],
      'Group By a Connect By query - correct values'
    );
  }

  # select the whole cycle tree without nocylce
  {
    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'cycle-root' },
      connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
    });

    # ORA-01436:  CONNECT BY loop in user data
    throws_ok { $rs->get_column ('name')->all } qr/ORA-01436/,
      "connect by initify loop detection without nocycle";
  }

  # select the whole cycle tree with nocylce
  SKIP: {
    # http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/expressi.htm#1023748
    skip q{Oracle8i doesn't support connect by nocycle}, 1
      if $schema->storage->_server_info->{normalized_dbms_version} < 9;

    my $rs = $schema->resultset('Artist')->search({}, {
      start_with => { name => 'cycle-root' },
      '+select'  => \ 'CONNECT_BY_ISCYCLE',
      '+as'      => [ 'connector' ],
      connect_by_nocycle => { parentid => { -prior => { -ident => 'artistid' } } },
    });

    is_deeply (
      [ $rs->get_column ('name')->all ],
      [ qw/cycle-root cycle-child1 cycle-grandchild cycle-child2/ ],
      'got artist tree with nocycle (name)',
    );
    is_deeply (
      [ $rs->get_column ('connector')->all ],
      [ qw/1 0 0 0/ ],
      'got artist tree with nocycle (CONNECT_BY_ISCYCLE)',
    );

    is( $rs->count, 4, 'Connect By Nocycle count ok' );
  }
}

done_testing;

sub do_creates {
  my $dbh = shift;

  eval {
    $dbh->do("DROP SEQUENCE artist_autoinc_seq");
    $dbh->do("DROP SEQUENCE artist_pk_seq");
    $dbh->do("DROP SEQUENCE cd_seq");
    $dbh->do("DROP SEQUENCE track_seq");
    $dbh->do("DROP TABLE artist");
    $dbh->do("DROP TABLE track");
    $dbh->do("DROP TABLE cd");
  };

  $dbh->do("CREATE SEQUENCE artist_pk_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
  $dbh->do("CREATE SEQUENCE cd_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
  $dbh->do("CREATE SEQUENCE track_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");

  $dbh->do("CREATE TABLE artist (artistid NUMBER(12), parentid NUMBER(12), name VARCHAR(255), autoinc_col NUMBER(12), rank NUMBER(38), charfield VARCHAR2(10))");
  $dbh->do("ALTER TABLE artist ADD (CONSTRAINT artist_pk PRIMARY KEY (artistid))");

  $dbh->do("CREATE TABLE cd (cdid NUMBER(12), artist NUMBER(12), title VARCHAR(255), year VARCHAR(4), genreid NUMBER(12), single_track NUMBER(12))");
  $dbh->do("ALTER TABLE cd ADD (CONSTRAINT cd_pk PRIMARY KEY (cdid))");

  $dbh->do("CREATE TABLE track (trackid NUMBER(12), cd NUMBER(12) REFERENCES cd(cdid) DEFERRABLE, position NUMBER(12), title VARCHAR(255), last_updated_on DATE, last_updated_at DATE, small_dt DATE)");
  $dbh->do("ALTER TABLE track ADD (CONSTRAINT track_pk PRIMARY KEY (trackid))");

  $dbh->do(qq{
    CREATE OR REPLACE TRIGGER artist_insert_trg_pk
    BEFORE INSERT ON artist
    FOR EACH ROW
      BEGIN
        IF :new.artistid IS NULL THEN
          SELECT artist_pk_seq.nextval
          INTO :new.artistid
          FROM DUAL;
        END IF;
      END;
  });
  $dbh->do(qq{
    CREATE OR REPLACE TRIGGER cd_insert_trg
    BEFORE INSERT OR UPDATE ON cd
    FOR EACH ROW

      DECLARE
      tmpVar NUMBER;

      BEGIN
        tmpVar := 0;

        IF :new.cdid IS NULL THEN
          SELECT cd_seq.nextval
          INTO tmpVar
          FROM dual;

          :new.cdid := tmpVar;
        END IF;
      END;
  });
  $dbh->do(qq{
    CREATE OR REPLACE TRIGGER track_insert_trg
    BEFORE INSERT ON track
    FOR EACH ROW
      BEGIN
        IF :new.trackid IS NULL THEN
          SELECT track_seq.nextval
          INTO :new.trackid
          FROM DUAL;
        END IF;
      END;
  });
}

# clean up our mess
END {
  if ($schema and my $dbh = $schema->storage->dbh) {
    eval { $dbh->do($_) } for (
      'DROP SEQUENCE artist_pk_seq',
      'DROP SEQUENCE cd_seq',
      'DROP SEQUENCE track_seq',
      'DROP TABLE artist',
      'DROP TABLE track',
      'DROP TABLE cd',
    );
  };
  undef $schema;
}
Commit	Line	Data
12e05c15	1	use strict;
	2	use warnings;
	3
	4	use Test::Exception;
	5	use Test::More;
1b658919	6
	7	# I strongly suspect Oracle has an implicit stable output order when
	8	# dealing with HQs. So just punt on the entire shuffle thing.
	9	BEGIN { $ENV{DBIC_SHUFFLE_UNORDERED_RESULTSETS} = 0 }
	10
	11
199fbc45	12	use DBIx::Class::Optional::Dependencies ();
12e05c15	13	use lib qw(t/lib);
fcb7fcbb	14
994dc91b	15	$ENV{NLS_SORT} = "BINARY";
	16	$ENV{NLS_COMP} = "BINARY";
	17	$ENV{NLS_LANG} = "AMERICAN";
	18
12e05c15	19	my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_ORA_${_}" } qw/DSN USER PASS/};
	20
	21	plan skip_all => 'Set $ENV{DBICTEST_ORA_DSN}, _USER and _PASS to run this test.'
	22	unless ($dsn && $user && $pass);
	23
e6983054	24	plan skip_all => 'Test needs ' . DBIx::Class::Optional::Dependencies->req_missing_for ('rdbms_oracle')
	25	unless DBIx::Class::Optional::Dependencies->req_ok_for ('rdbms_oracle');
	26
12e05c15	27	use DBICTest::Schema::Artist;
	28	BEGIN {
	29	DBICTest::Schema::Artist->add_column('parentid');
	30
	31	DBICTest::Schema::Artist->has_many(
	32	children => 'DBICTest::Schema::Artist',
	33	{ 'foreign.parentid' => 'self.artistid' }
	34	);
	35
	36	DBICTest::Schema::Artist->belongs_to(
	37	parent => 'DBICTest::Schema::Artist',
	38	{ 'foreign.artistid' => 'self.parentid' }
	39	);
	40	}
	41
8d6b1478	42	use DBICTest;
12e05c15	43	use DBICTest::Schema;
	44
	45	my $schema = DBICTest::Schema->connect($dsn, $user, $pass);
	46
	47	note "Oracle Version: " . $schema->storage->_server_info->{dbms_version};
	48
	49	my $dbh = $schema->storage->dbh;
	50	do_creates($dbh);
	51
	52	### test hierarchical queries
	53	{
	54	$schema->resultset('Artist')->create ({
	55	name => 'root',
	56	rank => 1,
	57	cds => [],
	58	children => [
	59	{
	60	name => 'child1',
	61	rank => 2,
	62	children => [
	63	{
	64	name => 'grandchild',
	65	rank => 3,
	66	cds => [
	67	{
	68	title => "grandchilds's cd" ,
	69	year => '2008',
	70	tracks => [
	71	{
	72	position => 1,
	73	title => 'Track 1 grandchild',
	74	}
	75	],
	76	}
	77	],
	78	children => [
	79	{
	80	name => 'greatgrandchild',
	81	rank => 3,
	82	}
	83	],
	84	}
	85	],
	86	},
	87	{
	88	name => 'child2',
	89	rank => 3,
	90	},
	91	],
	92	});
	93
	94	$schema->resultset('Artist')->create({
	95	name => 'cycle-root',
	96	children => [
	97	{
	98	name => 'cycle-child1',
	99	children => [ { name => 'cycle-grandchild' } ],
	100	},
	101	{
	102	name => 'cycle-child2'
	103	},
	104	],
	105	});
	106
107	$schema->resultset('Artist')->find({ name => 'cycle-root' })
108	->update({ parentid => { -ident => 'artistid' } });
109
110	# select the whole tree
111	{
112	my $rs = $schema->resultset('Artist')->search({}, {
113	start_with => { name => 'root' },
114	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
115	});
116
12e05c15	117	is_deeply (
	118	[ $rs->get_column ('name')->all ],
	119	[ qw/root child1 grandchild greatgrandchild child2/ ],
	120	'got artist tree',
	121	);
	122
12e05c15	123	is( $rs->count, 5, 'Connect By count ok' );
	124	}
	125
	126	# use order siblings by statement
	127	SKIP: {
	128	# http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
	129	skip q{Oracle8i doesn't support ORDER SIBLINGS BY}, 1
	130	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	131
	132	my $rs = $schema->resultset('Artist')->search({}, {
	133	start_with => { name => 'root' },
	134	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	135	order_siblings_by => { -desc => 'name' },
	136	});
	137
12e05c15	138	is_deeply (
	139	[ $rs->get_column ('name')->all ],
	140	[ qw/root child2 child1 grandchild greatgrandchild/ ],
	141	'Order Siblings By ok',
	142	);
	143	}
	144
	145	# get the root node
	146	{
	147	my $rs = $schema->resultset('Artist')->search({ parentid => undef }, {
	148	start_with => { name => 'root' },
	149	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	150	});
	151
12e05c15	152	is_deeply(
	153	[ $rs->get_column('name')->all ],
	154	[ 'root' ],
	155	'found root node',
	156	);
	157	}
	158
	159	# combine a connect by with a join
	160	SKIP: {
	161	# http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
	162	skip q{Oracle8i doesn't support connect by with join}, 1
	163	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	164
	165	my $rs = $schema->resultset('Artist')->search(
	166	{'cds.title' => { -like => '%cd'} },
	167	{
	168	join => 'cds',
	169	start_with => { 'me.name' => 'root' },
	170	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	171	}
	172	);
	173
12e05c15	174	is_deeply(
	175	[ $rs->get_column('name')->all ],
	176	[ 'grandchild' ],
	177	'Connect By with a join result name ok'
	178	);
	179
12e05c15	180	is( $rs->count, 1, 'Connect By with a join; count ok' );
	181	}
	182
	183	# combine a connect by with order_by
	184	{
	185	my $rs = $schema->resultset('Artist')->search({}, {
	186	start_with => { name => 'root' },
	187	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	188	order_by => { -asc => [ 'LEVEL', 'name' ] },
	189	});
	190
12e05c15	191	# Don't use "$rs->get_column ('name')->all" they build a query arround the $rs.
	192	# If $rs has a order by, the order by is in the subquery and this doesn't work with Oracle 8i.
	193	# TODO: write extra test and fix order by handling on Oracle 8i
	194	is_deeply (
	195	[ map { $_->[1] } $rs->cursor->all ],
	196	[ qw/root child1 child2 grandchild greatgrandchild/ ],
	197	'Connect By with a order_by - result name ok (without get_column)'
	198	);
	199
	200	SKIP: {
	201	skip q{Connect By with a order_by - result name ok (with get_column), Oracle8i doesn't support order by in a subquery},1
	202	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	203	is_deeply (
	204	[ $rs->get_column ('name')->all ],
	205	[ qw/root child1 child2 grandchild greatgrandchild/ ],
	206	'Connect By with a order_by - result name ok (with get_column)'
	207	);
	208	}
	209	}
	210
	211
	212	# limit a connect by
	213	SKIP: {
	214	skip q{Oracle8i doesn't support order by in a subquery}, 1
	215	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	216
	217	my $rs = $schema->resultset('Artist')->search({}, {
	218	start_with => { name => 'root' },
	219	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
6a6394f1	220	order_by => [ { -asc => 'name' }, { -desc => 'artistid' } ],
12e05c15	221	rows => 2,
	222	});
	223
12e05c15	224	is_deeply (
	225	[ $rs->get_column ('name')->all ],
	226	[qw/child1 child2/],
	227	'LIMIT a Connect By query - correct names'
	228	);
	229
12e05c15	230	is( $rs->count, 2, 'Connect By; LIMIT count ok' );
	231	}
	232
	233	# combine a connect_by with group_by and having
55d02972	234	# add some bindvals to make sure things still work
12e05c15	235	{
12e05c15	236	my $rs = $schema->resultset('Artist')->search({}, {
55d02972	237	select => \[ 'COUNT(rank) + ?', [ __cbind => 3 ] ],
55d02972	238	as => 'cnt',
12e05c15	239	start_with => { name => 'root' },
12e05c15	240	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
55d02972	241	group_by => \[ 'rank + ? ', [ __gbind => 1] ],
12e05c15	242	having => \[ 'count(rank) < ?', [ cnt => 2 ] ],
	243	});
	244
12e05c15	245	is_deeply (
12e05c15	246	[ $rs->get_column ('cnt')->all ],
55d02972	247	[4, 4],
12e05c15	248	'Group By a Connect By query - correct values'
	249	);
	250	}
	251
	252	# select the whole cycle tree without nocylce
	253	{
	254	my $rs = $schema->resultset('Artist')->search({}, {
	255	start_with => { name => 'cycle-root' },
	256	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	257	});
	258
	259	# ORA-01436: CONNECT BY loop in user data
	260	throws_ok { $rs->get_column ('name')->all } qr/ORA-01436/,
	261	"connect by initify loop detection without nocycle";
	262	}
	263
	264	# select the whole cycle tree with nocylce
	265	SKIP: {
	266	# http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/expressi.htm#1023748
	267	skip q{Oracle8i doesn't support connect by nocycle}, 1
	268	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	269
	270	my $rs = $schema->resultset('Artist')->search({}, {
	271	start_with => { name => 'cycle-root' },
	272	'+select' => \ 'CONNECT_BY_ISCYCLE',
	273	'+as' => [ 'connector' ],
	274	connect_by_nocycle => { parentid => { -prior => { -ident => 'artistid' } } },
	275	});
	276
12e05c15	277	is_deeply (
	278	[ $rs->get_column ('name')->all ],
	279	[ qw/cycle-root cycle-child1 cycle-grandchild cycle-child2/ ],
	280	'got artist tree with nocycle (name)',
	281	);
	282	is_deeply (
	283	[ $rs->get_column ('connector')->all ],
	284	[ qw/1 0 0 0/ ],
	285	'got artist tree with nocycle (CONNECT_BY_ISCYCLE)',
	286	);
	287
12e05c15	288	is( $rs->count, 4, 'Connect By Nocycle count ok' );
	289	}
	290	}
	291
	292	done_testing;
	293
	294	sub do_creates {
	295	my $dbh = shift;
	296
	297	eval {
	298	$dbh->do("DROP SEQUENCE artist_autoinc_seq");
	299	$dbh->do("DROP SEQUENCE artist_pk_seq");
	300	$dbh->do("DROP SEQUENCE cd_seq");
	301	$dbh->do("DROP SEQUENCE track_seq");
	302	$dbh->do("DROP TABLE artist");
	303	$dbh->do("DROP TABLE track");
	304	$dbh->do("DROP TABLE cd");
	305	};
	306
	307	$dbh->do("CREATE SEQUENCE artist_pk_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
	308	$dbh->do("CREATE SEQUENCE cd_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
	309	$dbh->do("CREATE SEQUENCE track_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
	310
	311	$dbh->do("CREATE TABLE artist (artistid NUMBER(12), parentid NUMBER(12), name VARCHAR(255), autoinc_col NUMBER(12), rank NUMBER(38), charfield VARCHAR2(10))");
	312	$dbh->do("ALTER TABLE artist ADD (CONSTRAINT artist_pk PRIMARY KEY (artistid))");
	313
	314	$dbh->do("CREATE TABLE cd (cdid NUMBER(12), artist NUMBER(12), title VARCHAR(255), year VARCHAR(4), genreid NUMBER(12), single_track NUMBER(12))");
	315	$dbh->do("ALTER TABLE cd ADD (CONSTRAINT cd_pk PRIMARY KEY (cdid))");
	316
	317	$dbh->do("CREATE TABLE track (trackid NUMBER(12), cd NUMBER(12) REFERENCES cd(cdid) DEFERRABLE, position NUMBER(12), title VARCHAR(255), last_updated_on DATE, last_updated_at DATE, small_dt DATE)");
	318	$dbh->do("ALTER TABLE track ADD (CONSTRAINT track_pk PRIMARY KEY (trackid))");
	319
	320	$dbh->do(qq{
	321	CREATE OR REPLACE TRIGGER artist_insert_trg_pk
	322	BEFORE INSERT ON artist
	323	FOR EACH ROW
	324	BEGIN
	325	IF :new.artistid IS NULL THEN
	326	SELECT artist_pk_seq.nextval
	327	INTO :new.artistid
	328	FROM DUAL;
	329	END IF;
	330	END;
	331	});
	332	$dbh->do(qq{
	333	CREATE OR REPLACE TRIGGER cd_insert_trg
	334	BEFORE INSERT OR UPDATE ON cd
	335	FOR EACH ROW
	336
	337	DECLARE
	338	tmpVar NUMBER;
	339
	340	BEGIN
	341	tmpVar := 0;
	342
	343	IF :new.cdid IS NULL THEN
	344	SELECT cd_seq.nextval
	345	INTO tmpVar
	346	FROM dual;
	347
	348	:new.cdid := tmpVar;
	349	END IF;
	350	END;
	351	});
352	$dbh->do(qq{
353	CREATE OR REPLACE TRIGGER track_insert_trg
354	BEFORE INSERT ON track
355	FOR EACH ROW
356	BEGIN
357	IF :new.trackid IS NULL THEN
358	SELECT track_seq.nextval
359	INTO :new.trackid
360	FROM DUAL;
361	END IF;
362	END;
363	});
364	}
365
366	# clean up our mess
367	END {
65d35121	368	if ($schema and my $dbh = $schema->storage->dbh) {
	369	eval { $dbh->do($_) } for (
	370	'DROP SEQUENCE artist_pk_seq',
	371	'DROP SEQUENCE cd_seq',
	372	'DROP SEQUENCE track_seq',
	373	'DROP TABLE artist',
	374	'DROP TABLE track',
	375	'DROP TABLE cd',
	376	);
12e05c15	377	};
65d35121	378	undef $schema;
12e05c15	379	}