1 package SQL::Translator::Parser::Oracle;
3 # -------------------------------------------------------------------
4 # $Id: Oracle.pm,v 1.22 2006-05-03 21:25:07 duality72 Exp $
5 # -------------------------------------------------------------------
6 # Copyright (C) 2002-4 SQLFairy Authors
8 # This program is free software; you can redistribute it and/or
9 # modify it under the terms of the GNU General Public License as
10 # published by the Free Software Foundation; version 2.
12 # This program is distributed in the hope that it will be useful, but
13 # WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 # General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 # -------------------------------------------------------------------
25 SQL::Translator::Parser::Oracle - parser for Oracle
30 use SQL::Translator::Parser::Oracle;
32 my $translator = SQL::Translator->new;
33 $translator->parser("SQL::Translator::Parser::Oracle");
37 From http://www.ss64.com/ora/table_c.html:
39 CREATE [GLOBAL TEMPORARY] TABLE [schema.]table (tbl_defs,...)
40 [ON COMMIT {DELETE|PRESERVE} ROWS]
41 [storage_options | CLUSTER cluster_name (col1, col2,... )
42 | ORGANIZATION {HEAP [storage_options]
43 | INDEX idx_organized_tbl_clause}]
44 [LOB_storage_clause][varray_clause][nested_storage_clause]
46 [[NO]CACHE] [[NO]MONITORING] [PARALLEL parallel_clause]
47 [ENABLE enable_clause | DISABLE disable_clause]
51 column datatype [DEFAULT expr] [column_constraint(s)]
59 STORAGE storage_clause
63 idx_organized_tbl_clause:
64 storage_option(s) [PCTTHRESHOLD int]
65 [COMPRESS int|NOCOMPRESS]
66 [ [INCLUDING column_name] OVERFLOW [storage_option(s)] ]
68 nested_storage_clause:
69 NESTED TABLE nested_item STORE AS storage_table
70 [RETURN AS {LOCATOR|VALUE} ]
73 Partition_clause {ENABLE|DISABLE} ROW MOVEMENT
76 (http://www.ss64.com/ora/clause_constraint_col.html)
78 CONSTRAINT constrnt_name {UNIQUE|PRIMARY KEY} constrnt_state
80 CONSTRAINT constrnt_name CHECK(condition) constrnt_state
82 CONSTRAINT constrnt_name [NOT] NULL constrnt_state
84 CONSTRAINT constrnt_name REFERENCES [schema.]table[(column)]
85 [ON DELETE {CASCADE|SET NULL}] constrnt_state
88 [[NOT] DEFERRABLE] [INITIALLY {IMMEDIATE|DEFERRED}]
89 [RELY | NORELY] [USING INDEX using_index_clause]
90 [ENABLE|DISABLE] [VALIDATE|NOVALIDATE]
91 [EXCEPTIONS INTO [schema.]table]
93 Note that probably not all of the above syntax is supported, but the grammar
94 was altered to better handle the syntax created by DDL::Oracle.
99 use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
100 $VERSION = sprintf "%d.%02d", q$Revision: 1.22 $ =~ /(\d+)\.(\d+)/;
101 $DEBUG = 0 unless defined $DEBUG;
104 use Parse::RecDescent;
106 use base qw(Exporter);
108 @EXPORT_OK = qw(parse);
110 # Enable warnings within the Parse::RecDescent module.
111 $::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error
112 $::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c.
113 $::RD_HINT = 1; # Give out hints to help fix problems.
119 { my ( %tables, %indices, %constraints, $table_order, @table_comments ) }
122 # The "eofile" rule makes the parser fail if any "statement" rule
123 # fails. Otherwise, the first successful match by a "statement"
124 # won't cause the failure needed to know that the parse, as a whole,
127 startrule : statement(s) eofile
131 indices => \%indices,
132 constraints => \%constraints,
149 alter : /alter/i WORD /[^;]+/ ';'
150 { @table_comments = () }
152 drop : /drop/i TABLE ';'
154 drop : /drop/i WORD(s) ';'
155 { @table_comments = () }
157 create : create_table table_name '(' create_definition(s /,/) ')' table_option(s?) ';'
159 my $table_name = $item{'table_name'};
160 $tables{ $table_name }{'order'} = ++$table_order;
161 $tables{ $table_name }{'table_name'} = $table_name;
163 if ( @table_comments ) {
164 $tables{ $table_name }{'comments'} = [ @table_comments ];
165 @table_comments = ();
170 for my $definition ( @{ $item[4] } ) {
171 if ( $definition->{'type'} eq 'field' ) {
172 my $field_name = $definition->{'name'};
173 $tables{ $table_name }{'fields'}{ $field_name } =
174 { %$definition, order => $i };
177 for my $constraint ( @{ $definition->{'constraints'} || [] } ) {
178 $constraint->{'fields'} = [ $field_name ];
179 push @{ $tables{ $table_name }{'constraints'} },
183 elsif ( $definition->{'type'} eq 'constraint' ) {
184 $definition->{'type'} = $definition->{'constraint_type'};
185 push @{ $tables{ $table_name }{'constraints'} }, $definition;
188 push @{ $tables{ $table_name }{'indices'} }, $definition;
192 for my $option ( @{ $item[6] } ) {
193 push @{ $tables{ $table_name }{'table_options'} }, $option;
199 create : create_index index_name /on/i table_name index_expr table_option(?) ';'
201 my $table_name = $item[4];
203 push @{ $constraints{ $table_name } }, {
210 push @{ $indices{ $table_name } }, {
218 index_expr: parens_word_list
220 | '(' WORD parens_word_list ')'
221 { $item[2].$item[3] }
223 # Create anything else (e.g., domain, function, etc.)
224 create : ...!create_table ...!create_index /create/i WORD /[^;]+/ ';'
225 { @table_comments = () }
227 create_index : /create/i UNIQUE(?) /index/i
228 { $return = $item[2] }
230 index_name : NAME '.' NAME
235 global_temporary: /global/i /temporary/i
237 table_name : NAME '.' NAME
242 create_definition : field
246 table_comment : comment
248 my $comment = $item[1];
250 push @table_comments, $comment;
253 comment : /^\s*(?:#|-{2}).*\n/
255 my $comment = $item[1];
256 $comment =~ s/^\s*(#|-{2})\s*//;
257 $comment =~ s/\s*$//;
261 comment : /\/\*/ /[^\*]+/ /\*\//
263 my $comment = $item[2];
264 $comment =~ s/^\s*|\s*$//g;
268 remark : /^REM\s+.*\n/
270 run : /^(RUN|\/)\s+.*\n/
272 prompt : /prompt/i /(table|index|sequence|trigger)/i ';'
274 prompt : /prompt\s+create\s+.*\n/i
276 comment_on_table : /comment/i /on/i /table/i table_name /is/i comment_phrase ';'
278 push @{ $tables{ $item{'table_name'} }{'comments'} }, $item{'comment_phrase'};
281 comment_on_column : /comment/i /on/i /column/i column_name /is/i comment_phrase ';'
283 my $table_name = $item[4]->{'table'};
284 my $field_name = $item[4]->{'field'};
285 push @{ $tables{ $table_name }{'fields'}{ $field_name }{'comments'} },
286 $item{'comment_phrase'};
289 column_name : NAME '.' NAME
290 { $return = { table => $item[1], field => $item[3] } }
292 comment_phrase : /'.*?'/
299 field : comment(s?) field_name data_type field_meta(s?) comment(s?)
301 my ( $is_pk, $default, @constraints );
303 for my $meta ( @{ $item[4] } ) {
304 if ( $meta->{'type'} eq 'default' ) {
308 elsif ( $meta->{'type'} eq 'not_null' ) {
312 elsif ( $meta->{'type'} eq 'primary_key' ) {
316 push @constraints, $meta if $meta->{'supertype'} eq 'constraint';
319 my @comments = ( @{ $item[1] }, @{ $item[5] } );
323 name => $item{'field_name'},
324 data_type => $item{'data_type'}{'type'},
325 size => $item{'data_type'}{'size'},
327 default => $default->{'value'},
328 is_primary_key => $is_pk,
329 constraints => [ @constraints ],
330 comments => [ @comments ],
337 data_type : ora_data_type data_size(?)
341 size => $item[2][0] || '',
345 data_size : '(' VALUE(s /,/) data_size_modifier(?) ')'
348 data_size_modifier: /byte/i
351 column_constraint : constraint_name(?) column_constraint_type constraint_state(s?)
353 my $desc = $item{'column_constraint_type'};
354 my $type = $desc->{'type'};
355 my $fields = $desc->{'fields'} || [];
356 my $expression = $desc->{'expression'} || '';
359 supertype => 'constraint',
360 name => $item{'constraint_name(?)'}[0] || '',
362 expression => $type eq 'check' ? $expression : '',
363 deferrable => $item{'deferrable'},
364 deferred => $item{'deferred'},
365 reference_table => $desc->{'reference_table'},
366 reference_fields => $desc->{'reference_fields'},
367 # match_type => $desc->{'match_type'},
368 # on_update => $desc->{'on_update'},
372 constraint_name : /constraint/i NAME { $item[2] }
374 column_constraint_type : /not\s+null/i { $return = { type => 'not_null' } }
376 { $return = { type => 'null' } }
378 { $return = { type => 'unique' } }
380 { $return = { type => 'primary_key' } }
381 | /check/i '(' /[^)]+/ ')'
382 { $return = { type => 'check', expression => $item[3] } }
383 | /references/i table_name parens_word_list(?) on_delete(?)
386 type => 'foreign_key',
387 reference_table => $item[2],
388 reference_fields => $item[3][0],
389 # match_type => $item[4][0],
390 on_delete => $item[5][0],
394 constraint_state : deferrable { $return = { type => $item[1] } }
395 | deferred { $return = { type => $item[1] } }
396 | /(no)?rely/i { $return = { type => $item[1] } }
397 # | /using/i /index/i using_index_clause
398 # { $return = { type => 'using_index', index => $item[3] } }
399 | /(dis|en)able/i { $return = { type => $item[1] } }
400 | /(no)?validate/i { $return = { type => $item[1] } }
401 | /exceptions/i /into/i table_name
402 { $return = { type => 'exceptions_into', table => $item[3] } }
404 deferrable : /not/i /deferrable/i
405 { $return = 'not_deferrable' }
407 { $return = 'deferrable' }
409 deferred : /initially/i /(deferred|immediate)/i { $item[2] }
412 /(n?varchar2|varchar)/i { $return = 'varchar2' }
414 /n?char/i { $return = 'character' }
416 /n?dec/i { $return = 'decimal' }
418 /number/i { $return = 'number' }
420 /integer/i { $return = 'integer' }
422 /(pls_integer|binary_integer)/i { $return = 'integer' }
424 /interval\s+day/i { $return = 'interval day' }
426 /interval\s+year/i { $return = 'interval year' }
428 /long\s+raw/i { $return = 'long raw' }
430 /(long|date|timestamp|raw|rowid|urowid|mlslabel|clob|nclob|blob|bfile|float)/i { $item[1] }
432 parens_value_list : '(' VALUE(s /,/) ')'
435 parens_word_list : '(' WORD(s /,/) ')'
438 field_meta : default_val
441 default_val : /default/i /(?:')?[\w\d.-]*(?:')?/
444 $val =~ s/'//g if defined $val;
446 supertype => 'constraint',
452 create_table : /create/i global_temporary(?) /table/i
454 table_option : /organization/i WORD
456 $return = { 'ORGANIZATION' => $item[2] }
459 table_option : /nomonitoring/i
461 $return = { 'NOMONITORING' => undef }
464 table_option : /parallel/i '(' key_value(s) ')'
466 $return = { 'PARALLEL' => $item[3] }
469 key_value : WORD VALUE
471 $return = { $item[1], $item[2] }
474 table_option : /[^;]+/
476 table_constraint : comment(s?) constraint_name(?) table_constraint_type deferrable(?) deferred(?) constraint_state(s?) comment(s?)
478 my $desc = $item{'table_constraint_type'};
479 my $type = $desc->{'type'};
480 my $fields = $desc->{'fields'};
481 my $expression = $desc->{'expression'};
482 my @comments = ( @{ $item[1] }, @{ $item[-1] } );
485 name => $item{'constraint_name(?)'}[0] || '',
486 type => 'constraint',
487 constraint_type => $type,
488 fields => $type ne 'check' ? $fields : [],
489 expression => $type eq 'check' ? $expression : '',
490 deferrable => $item{'deferrable(?)'},
491 deferred => $item{'deferred(?)'},
492 reference_table => $desc->{'reference_table'},
493 reference_fields => $desc->{'reference_fields'},
494 # match_type => $desc->{'match_type'}[0],
495 on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'},
496 on_update => $desc->{'on_update'} || $desc->{'on_update_do'},
497 comments => [ @comments ],
501 table_constraint_type : /primary key/i '(' NAME(s /,/) ')'
504 type => 'primary_key',
509 /unique/i '(' NAME(s /,/) ')'
517 /check/ '(' /(.+)/ ')'
521 expression => $item[3],
525 /foreign key/i '(' NAME(s /,/) ')' /references/i table_name parens_word_list(?) on_delete(?)
528 type => 'foreign_key',
530 reference_table => $item[6],
531 reference_fields => $item[7][0],
532 match_type => $item[8][0],
533 on_delete => $item[9][0],
534 on_update => $item[10][0],
538 on_delete : /on delete/i WORD(s)
541 UNIQUE : /unique/i { $return = 1 }
545 NAME : /\w+/ { $item[1] }
549 VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/
551 | /'.*?'/ # XXX doesn't handle embedded quotes
558 # -------------------------------------------------------------------
560 my ( $translator, $data ) = @_;
561 $parser ||= Parse::RecDescent->new($GRAMMAR);
563 local $::RD_TRACE = $translator->trace ? 1 : undef;
564 local $DEBUG = $translator->debug;
566 unless (defined $parser) {
567 return $translator->error("Error instantiating Parse::RecDescent ".
568 "instance: Bad grammer");
571 my $result = $parser->startrule( $data );
572 die "Parse failed.\n" unless defined $result;
574 warn "Parser results =\n", Dumper($result), "\n";
577 my $schema = $translator->schema;
578 my $indices = $result->{'indices'};
579 my $constraints = $result->{'constraints'};
581 $result->{'tables'}{ $a }{'order'}
583 $result->{'tables'}{ $b }{'order'}
584 } keys %{ $result->{'tables'} };
586 for my $table_name ( @tables ) {
587 my $tdata = $result->{'tables'}{ $table_name };
588 next unless $tdata->{'table_name'};
589 my $table = $schema->add_table(
590 name => $tdata->{'table_name'},
591 comments => $tdata->{'comments'},
592 ) or die $schema->error;
594 $table->options( $tdata->{'table_options'} );
597 $tdata->{'fields'}->{$a}->{'order'}
599 $tdata->{'fields'}->{$b}->{'order'}
600 } keys %{ $tdata->{'fields'} };
602 for my $fname ( @fields ) {
603 my $fdata = $tdata->{'fields'}{ $fname };
604 my $field = $table->add_field(
605 name => $fdata->{'name'},
606 data_type => $fdata->{'data_type'},
607 size => $fdata->{'size'},
608 default_value => $fdata->{'default'},
609 is_auto_increment => $fdata->{'is_auto_inc'},
610 is_nullable => $fdata->{'null'},
611 comments => $fdata->{'comments'},
612 ) or die $table->error;
615 push @{ $tdata->{'indices'} }, @{ $indices->{ $table_name } || [] };
616 push @{ $tdata->{'constraints'} },
617 @{ $constraints->{ $table_name } || [] };
619 for my $idata ( @{ $tdata->{'indices'} || [] } ) {
620 my $index = $table->add_index(
621 name => $idata->{'name'},
622 type => uc $idata->{'type'},
623 fields => $idata->{'fields'},
624 ) or die $table->error;
627 for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
628 my $constraint = $table->add_constraint(
629 name => $cdata->{'name'},
630 type => $cdata->{'type'},
631 fields => $cdata->{'fields'},
632 reference_table => $cdata->{'reference_table'},
633 reference_fields => $cdata->{'reference_fields'},
634 match_type => $cdata->{'match_type'} || '',
635 on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
636 on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'},
637 ) or die $table->error;
646 # -------------------------------------------------------------------
647 # Something there is that doesn't love a wall.
649 # -------------------------------------------------------------------
655 Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
659 SQL::Translator, Parse::RecDescent, DDL::Oracle.