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

use DBIx::Class::Optional::Dependencies -skip_all_without => 'test_rdbms_oracle';

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 lib qw(t/lib);

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;

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

my ($dsn,  $user,  $pass)  = @ENV{map { "DBICTEST_ORA_${_}" }  qw/DSN USER PASS/};
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
cb551b07	1	use DBIx::Class::Optional::Dependencies -skip_all_without => 'test_rdbms_oracle';
cb551b07	2
12e05c15	3	use strict;
	4	use warnings;
	5
	6	use Test::Exception;
	7	use Test::More;
1b658919	8
	9	# I strongly suspect Oracle has an implicit stable output order when
	10	# dealing with HQs. So just punt on the entire shuffle thing.
	11	BEGIN { $ENV{DBIC_SHUFFLE_UNORDERED_RESULTSETS} = 0 }
	12
12e05c15	13	use lib qw(t/lib);
fcb7fcbb	14
12e05c15	15	use DBICTest::Schema::Artist;
	16	BEGIN {
	17	DBICTest::Schema::Artist->add_column('parentid');
	18
	19	DBICTest::Schema::Artist->has_many(
	20	children => 'DBICTest::Schema::Artist',
	21	{ 'foreign.parentid' => 'self.artistid' }
	22	);
	23
	24	DBICTest::Schema::Artist->belongs_to(
	25	parent => 'DBICTest::Schema::Artist',
	26	{ 'foreign.artistid' => 'self.parentid' }
	27	);
	28	}
	29
8d6b1478	30	use DBICTest;
12e05c15	31	use DBICTest::Schema;
12e05c15	32
cb551b07	33	$ENV{NLS_SORT} = "BINARY";
	34	$ENV{NLS_COMP} = "BINARY";
	35	$ENV{NLS_LANG} = "AMERICAN";
	36
	37	my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_ORA_${_}" } qw/DSN USER PASS/};
12e05c15	38	my $schema = DBICTest::Schema->connect($dsn, $user, $pass);
	39
	40	note "Oracle Version: " . $schema->storage->_server_info->{dbms_version};
	41
	42	my $dbh = $schema->storage->dbh;
	43	do_creates($dbh);
	44
	45	### test hierarchical queries
	46	{
	47	$schema->resultset('Artist')->create ({
	48	name => 'root',
	49	rank => 1,
	50	cds => [],
	51	children => [
	52	{
	53	name => 'child1',
	54	rank => 2,
	55	children => [
	56	{
	57	name => 'grandchild',
	58	rank => 3,
	59	cds => [
	60	{
	61	title => "grandchilds's cd" ,
	62	year => '2008',
	63	tracks => [
	64	{
	65	position => 1,
	66	title => 'Track 1 grandchild',
	67	}
	68	],
	69	}
	70	],
	71	children => [
	72	{
	73	name => 'greatgrandchild',
	74	rank => 3,
	75	}
	76	],
	77	}
	78	],
	79	},
	80	{
	81	name => 'child2',
	82	rank => 3,
	83	},
	84	],
	85	});
	86
	87	$schema->resultset('Artist')->create({
	88	name => 'cycle-root',
	89	children => [
	90	{
	91	name => 'cycle-child1',
	92	children => [ { name => 'cycle-grandchild' } ],
	93	},
	94	{
	95	name => 'cycle-child2'
	96	},
	97	],
	98	});
	99
	100	$schema->resultset('Artist')->find({ name => 'cycle-root' })
	101	->update({ parentid => { -ident => 'artistid' } });
102
103	# select the whole tree
104	{
105	my $rs = $schema->resultset('Artist')->search({}, {
106	start_with => { name => 'root' },
107	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
108	});
109
12e05c15	110	is_deeply (
	111	[ $rs->get_column ('name')->all ],
	112	[ qw/root child1 grandchild greatgrandchild child2/ ],
	113	'got artist tree',
	114	);
	115
12e05c15	116	is( $rs->count, 5, 'Connect By count ok' );
	117	}
	118
	119	# use order siblings by statement
	120	SKIP: {
	121	# http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
	122	skip q{Oracle8i doesn't support ORDER SIBLINGS BY}, 1
	123	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	124
	125	my $rs = $schema->resultset('Artist')->search({}, {
	126	start_with => { name => 'root' },
	127	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	128	order_siblings_by => { -desc => 'name' },
	129	});
	130
12e05c15	131	is_deeply (
	132	[ $rs->get_column ('name')->all ],
	133	[ qw/root child2 child1 grandchild greatgrandchild/ ],
	134	'Order Siblings By ok',
	135	);
	136	}
	137
	138	# get the root node
	139	{
	140	my $rs = $schema->resultset('Artist')->search({ parentid => undef }, {
	141	start_with => { name => 'root' },
	142	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	143	});
	144
12e05c15	145	is_deeply(
	146	[ $rs->get_column('name')->all ],
	147	[ 'root' ],
	148	'found root node',
	149	);
	150	}
	151
	152	# combine a connect by with a join
	153	SKIP: {
	154	# http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/state21b.htm#2066123
	155	skip q{Oracle8i doesn't support connect by with join}, 1
	156	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	157
	158	my $rs = $schema->resultset('Artist')->search(
	159	{'cds.title' => { -like => '%cd'} },
	160	{
	161	join => 'cds',
	162	start_with => { 'me.name' => 'root' },
	163	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	164	}
	165	);
	166
12e05c15	167	is_deeply(
	168	[ $rs->get_column('name')->all ],
	169	[ 'grandchild' ],
	170	'Connect By with a join result name ok'
	171	);
	172
12e05c15	173	is( $rs->count, 1, 'Connect By with a join; count ok' );
	174	}
	175
	176	# combine a connect by with order_by
	177	{
	178	my $rs = $schema->resultset('Artist')->search({}, {
	179	start_with => { name => 'root' },
	180	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	181	order_by => { -asc => [ 'LEVEL', 'name' ] },
	182	});
	183
12e05c15	184	# Don't use "$rs->get_column ('name')->all" they build a query arround the $rs.
	185	# If $rs has a order by, the order by is in the subquery and this doesn't work with Oracle 8i.
	186	# TODO: write extra test and fix order by handling on Oracle 8i
	187	is_deeply (
	188	[ map { $_->[1] } $rs->cursor->all ],
	189	[ qw/root child1 child2 grandchild greatgrandchild/ ],
	190	'Connect By with a order_by - result name ok (without get_column)'
	191	);
	192
	193	SKIP: {
	194	skip q{Connect By with a order_by - result name ok (with get_column), Oracle8i doesn't support order by in a subquery},1
	195	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	196	is_deeply (
	197	[ $rs->get_column ('name')->all ],
	198	[ qw/root child1 child2 grandchild greatgrandchild/ ],
	199	'Connect By with a order_by - result name ok (with get_column)'
	200	);
	201	}
	202	}
	203
	204
	205	# limit a connect by
	206	SKIP: {
	207	skip q{Oracle8i doesn't support order by in a subquery}, 1
	208	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	209
	210	my $rs = $schema->resultset('Artist')->search({}, {
	211	start_with => { name => 'root' },
	212	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
6a6394f1	213	order_by => [ { -asc => 'name' }, { -desc => 'artistid' } ],
12e05c15	214	rows => 2,
	215	});
	216
12e05c15	217	is_deeply (
	218	[ $rs->get_column ('name')->all ],
	219	[qw/child1 child2/],
	220	'LIMIT a Connect By query - correct names'
	221	);
	222
12e05c15	223	is( $rs->count, 2, 'Connect By; LIMIT count ok' );
	224	}
	225
	226	# combine a connect_by with group_by and having
55d02972	227	# add some bindvals to make sure things still work
12e05c15	228	{
12e05c15	229	my $rs = $schema->resultset('Artist')->search({}, {
55d02972	230	select => \[ 'COUNT(rank) + ?', [ __cbind => 3 ] ],
55d02972	231	as => 'cnt',
12e05c15	232	start_with => { name => 'root' },
12e05c15	233	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
55d02972	234	group_by => \[ 'rank + ? ', [ __gbind => 1] ],
12e05c15	235	having => \[ 'count(rank) < ?', [ cnt => 2 ] ],
	236	});
	237
12e05c15	238	is_deeply (
12e05c15	239	[ $rs->get_column ('cnt')->all ],
55d02972	240	[4, 4],
12e05c15	241	'Group By a Connect By query - correct values'
	242	);
	243	}
	244
	245	# select the whole cycle tree without nocylce
	246	{
	247	my $rs = $schema->resultset('Artist')->search({}, {
	248	start_with => { name => 'cycle-root' },
	249	connect_by => { parentid => { -prior => { -ident => 'artistid' } } },
	250	});
	251
	252	# ORA-01436: CONNECT BY loop in user data
	253	throws_ok { $rs->get_column ('name')->all } qr/ORA-01436/,
	254	"connect by initify loop detection without nocycle";
	255	}
	256
	257	# select the whole cycle tree with nocylce
	258	SKIP: {
	259	# http://download.oracle.com/docs/cd/A87860_01/doc/server.817/a85397/expressi.htm#1023748
	260	skip q{Oracle8i doesn't support connect by nocycle}, 1
	261	if $schema->storage->_server_info->{normalized_dbms_version} < 9;
	262
	263	my $rs = $schema->resultset('Artist')->search({}, {
	264	start_with => { name => 'cycle-root' },
	265	'+select' => \ 'CONNECT_BY_ISCYCLE',
	266	'+as' => [ 'connector' ],
	267	connect_by_nocycle => { parentid => { -prior => { -ident => 'artistid' } } },
	268	});
	269
12e05c15	270	is_deeply (
	271	[ $rs->get_column ('name')->all ],
	272	[ qw/cycle-root cycle-child1 cycle-grandchild cycle-child2/ ],
	273	'got artist tree with nocycle (name)',
	274	);
	275	is_deeply (
	276	[ $rs->get_column ('connector')->all ],
	277	[ qw/1 0 0 0/ ],
	278	'got artist tree with nocycle (CONNECT_BY_ISCYCLE)',
	279	);
	280
12e05c15	281	is( $rs->count, 4, 'Connect By Nocycle count ok' );
	282	}
	283	}
	284
	285	done_testing;
	286
	287	sub do_creates {
	288	my $dbh = shift;
	289
	290	eval {
	291	$dbh->do("DROP SEQUENCE artist_autoinc_seq");
	292	$dbh->do("DROP SEQUENCE artist_pk_seq");
	293	$dbh->do("DROP SEQUENCE cd_seq");
	294	$dbh->do("DROP SEQUENCE track_seq");
	295	$dbh->do("DROP TABLE artist");
	296	$dbh->do("DROP TABLE track");
	297	$dbh->do("DROP TABLE cd");
	298	};
	299
	300	$dbh->do("CREATE SEQUENCE artist_pk_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
	301	$dbh->do("CREATE SEQUENCE cd_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
	302	$dbh->do("CREATE SEQUENCE track_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
	303
	304	$dbh->do("CREATE TABLE artist (artistid NUMBER(12), parentid NUMBER(12), name VARCHAR(255), autoinc_col NUMBER(12), rank NUMBER(38), charfield VARCHAR2(10))");
	305	$dbh->do("ALTER TABLE artist ADD (CONSTRAINT artist_pk PRIMARY KEY (artistid))");
	306
	307	$dbh->do("CREATE TABLE cd (cdid NUMBER(12), artist NUMBER(12), title VARCHAR(255), year VARCHAR(4), genreid NUMBER(12), single_track NUMBER(12))");
	308	$dbh->do("ALTER TABLE cd ADD (CONSTRAINT cd_pk PRIMARY KEY (cdid))");
	309
	310	$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)");
	311	$dbh->do("ALTER TABLE track ADD (CONSTRAINT track_pk PRIMARY KEY (trackid))");
	312
	313	$dbh->do(qq{
	314	CREATE OR REPLACE TRIGGER artist_insert_trg_pk
	315	BEFORE INSERT ON artist
	316	FOR EACH ROW
	317	BEGIN
	318	IF :new.artistid IS NULL THEN
	319	SELECT artist_pk_seq.nextval
	320	INTO :new.artistid
	321	FROM DUAL;
	322	END IF;
	323	END;
	324	});
	325	$dbh->do(qq{
	326	CREATE OR REPLACE TRIGGER cd_insert_trg
	327	BEFORE INSERT OR UPDATE ON cd
	328	FOR EACH ROW
	329
	330	DECLARE
	331	tmpVar NUMBER;
	332
	333	BEGIN
	334	tmpVar := 0;
	335
	336	IF :new.cdid IS NULL THEN
	337	SELECT cd_seq.nextval
	338	INTO tmpVar
	339	FROM dual;
	340
	341	:new.cdid := tmpVar;
	342	END IF;
	343	END;
	344	});
345	$dbh->do(qq{
346	CREATE OR REPLACE TRIGGER track_insert_trg
347	BEFORE INSERT ON track
348	FOR EACH ROW
349	BEGIN
350	IF :new.trackid IS NULL THEN
351	SELECT track_seq.nextval
352	INTO :new.trackid
353	FROM DUAL;
354	END IF;
355	END;
356	});
357	}
358
359	# clean up our mess
360	END {
65d35121	361	if ($schema and my $dbh = $schema->storage->dbh) {
	362	eval { $dbh->do($_) } for (
	363	'DROP SEQUENCE artist_pk_seq',
	364	'DROP SEQUENCE cd_seq',
	365	'DROP SEQUENCE track_seq',
	366	'DROP TABLE artist',
	367	'DROP TABLE track',
	368	'DROP TABLE cd',
	369	);
12e05c15	370	};
65d35121	371	undef $schema;
12e05c15	372	}