1 package SQL::Translator::Parser::Oracle;
3 # -------------------------------------------------------------------
4 # $Id: Oracle.pm,v 1.1 2003-04-10 03:09:28 kycl4rk Exp $
5 # -------------------------------------------------------------------
6 # Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
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)]
60 STORAGE storage_clause
64 idx_organized_tbl_clause:
65 storage_option(s) [PCTTHRESHOLD int]
66 [COMPRESS int|NOCOMPRESS]
67 [ [INCLUDING column_name] OVERFLOW [storage_option(s)] ]
69 nested_storage_clause:
70 NESTED TABLE nested_item STORE AS storage_table
71 [RETURN AS {LOCATOR|VALUE} ]
74 Partition_clause {ENABLE|DISABLE} ROW MOVEMENT
77 (http://www.ss64.com/ora/clause_constraint_col.html)
79 CONSTRAINT constrnt_name {UNIQUE|PRIMARY KEY} constrnt_state
81 CONSTRAINT constrnt_name CHECK(condition) constrnt_state
83 CONSTRAINT constrnt_name [NOT] NULL constrnt_state
85 CONSTRAINT constrnt_name REFERENCES [schema.]table[(column)]
86 [ON DELETE {CASCADE|SET NULL}] constrnt_state
89 [[NOT] DEFERRABLE] [INITIALLY {IMMEDIATE|DEFERRED}]
90 [RELY | NORELY] [USING INDEX using_index_clause]
91 [ENABLE|DISABLE] [VALIDATE|NOVALIDATE]
92 [EXCEPTIONS INTO [schema.]table]
97 use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
98 $VERSION = sprintf "%d.%02d", q$Revision: 1.1 $ =~ /(\d+)\.(\d+)/;
99 $DEBUG = 0 unless defined $DEBUG;
102 use Parse::RecDescent;
104 use base qw(Exporter);
106 @EXPORT_OK = qw(parse);
108 # Enable warnings within the Parse::RecDescent module.
109 $::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error
110 $::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c.
111 $::RD_HINT = 1; # Give out hints to help fix problems.
117 { our ( %tables, $table_order ) }
120 # The "eofile" rule makes the parser fail if any "statement" rule
121 # fails. Otherwise, the first successful match by a "statement"
122 # won't cause the failure needed to know that the parse, as a whole,
125 startrule : statement(s) eofile { \%tables }
135 create : create_table table_name '(' create_definition(s /,/) ')' table_option(s?) ';'
137 my $table_name = $item{'table_name'};
138 $tables{ $table_name }{'order'} = ++$table_order;
139 $tables{ $table_name }{'table_name'} = $table_name;
143 for my $definition ( @{ $item[4] } ) {
144 if ( $definition->{'type'} eq 'field' ) {
145 my $field_name = $definition->{'name'};
146 $tables{ $table_name }{'fields'}{ $field_name } =
147 { %$definition, order => $i };
150 if ( $definition->{'is_primary_key'} ) {
151 push @{ $tables{ $table_name }{'indices'} }, {
152 type => 'primary_key',
153 fields => [ $field_name ],
157 for my $constraint ( @{ $definition->{'constraints'} || [] } ) {
158 $constraint->{'fields'} = [ $field_name ];
159 push @{ $tables{ $table_name }{'constraints'} },
163 elsif ( $definition->{'type'} eq 'constraint' ) {
164 $definition->{'type'} = $definition->{'constraint_type'};
165 # group FKs at the field level
166 if ( $definition->{'type'} eq 'foreign_key' ) {
167 for my $fld ( @{ $definition->{'fields'} || [] } ) {
169 $tables{$table_name}{'fields'}{$fld}{'constraints'}
174 push @{ $tables{ $table_name }{'constraints'} },
179 push @{ $tables{ $table_name }{'indices'} }, $definition;
183 for my $option ( @{ $item[6] } ) {
184 $tables{ $table_name }{'table_options'}{ $option->{'type'} } =
191 # Create anything else (e.g., domain, function, etc.)
192 create : /create/i WORD /[^;]+/ ';'
194 global_temporary: /global/i /temporary/i
196 table_name : NAME '.' NAME
201 create_definition : field
205 comment : /^\s*(?:#|-{2}).*\n/
207 comment_on_table : /comment/i /on/i /table/i table_name /is/i phrase ';'
209 push @{ $tables{ $item{'table_name'} }{'comments'} }, $item[7];
212 comment_on_column : /comment/i /on/i /column/i column_name /is/i phrase ';'
214 my $table_name = $item[4]->{'table'};
215 my $field_name = $item[4]->{'field'};
216 push @{ $tables{ $table_name }{'fields'}{ $field_name }{'comments'} },
220 column_name : NAME '.' NAME
221 { $return = { table => $item[1], field => $item[3] } }
223 phrase : /'.*?'/ { $item[1] }
225 field : comment(s?) field_name data_type field_meta(s?) comment(s?)
227 my ( $default, @constraints );
228 for my $meta ( @{ $item[4] } ) {
229 $default = $meta if $meta->{'meta_type'} eq 'default';
230 push @constraints, $meta if $meta->{'meta_type'} eq 'constraint';
233 my $null = ( grep { $_->{'type'} eq 'not_null' } @constraints ) ? 0 : 1;
237 name => $item{'field_name'},
238 data_type => $item{'data_type'}{'type'},
239 size => $item{'data_type'}{'size'},
240 list => $item{'data_type'}{'list'},
242 default => $default->{'value'},
243 constraints => [ @constraints ],
250 data_type : ora_data_type parens_value_list(?)
254 size => $item[2][0] || '',
258 column_constraint : constraint_name(?) column_constraint_type
259 #constraint_state(s /,/)
261 my $desc = $item{'column_constraint_type'};
262 my $type = $desc->{'type'};
263 my $fields = $desc->{'fields'} || [];
264 my $expression = $desc->{'expression'} || '';
267 meta_type => 'constraint',
268 name => $item{'constraint_name'}[0] || '',
270 expression => $type eq 'check' ? $expression : '',
271 deferreable => $item{'deferrable'},
272 deferred => $item{'deferred'},
273 reference_table => $desc->{'reference_table'},
274 reference_fields => $desc->{'reference_fields'},
275 # match_type => $desc->{'match_type'},
276 # on_update_do => $desc->{'on_update_do'},
280 constraint_name : /constraint/i NAME { $item[2] }
282 column_constraint_type : /not null/i { $return = { type => 'not_null' } }
285 { $return = { type => 'null' } }
288 { $return = { type => 'unique' } }
291 { $return = { type => 'primary_key' } }
293 /check/i '(' /[^)]+/ ')'
294 { $return = { type => 'check', expression => $item[2] } }
296 /references/i table_name parens_word_list(?) on_delete_do(?)
299 type => 'foreign_key',
300 reference_table => $item[2],
301 reference_fields => $item[3][0],
302 # match_type => $item[4][0],
303 on_delete_do => $item[5][0],
307 #constraint_state : deferrable { $return = { type => $item[1] } }
308 # | deferred { $return = { type => $item[1] } }
309 # | /(no)?rely/ { $return = { type => $item[1] } }
310 # | /using/i /index/i using_index_clause
311 # { $return = { type => 'using_index', index => $item[3] }
312 # | (dis)?enable { $return = { type => $item[1] } }
313 # | (no)?validate { $return = { type => $item[1] } }
314 # | /exceptions/i /into/i table_name
315 # { $return = { type => 'exceptions_into', table => $item[3] } }
317 deferrable : /not/i /deferrable/i
318 { $return = 'not_deferrable' }
320 { $return = 'deferrable' }
322 deferred : /initially/i /(deferred|immediate)/i { $item[2] }
325 /(n?varchar2|varchar)/i { $return = 'varchar' }
327 /n?char/i { $return = 'character' }
329 /number/i { $return = 'number' }
331 /(pls_integer|binary_integer)/i { $return = 'integer' }
333 /interval\s+day/i { $return = 'interval_day' }
335 /interval\s+year/i { $return = 'interval_year' }
337 /long\s+raw/i { $return = 'long_raw' }
339 /(long|date|timestamp|raw|rowid|urowid|mlslabel|clob|nclob|blob|bfile)/i { $item[1] }
341 parens_value_list : '(' VALUE(s /,/) ')'
344 parens_word_list : '(' WORD(s /,/) ')'
347 field_meta : default_val
351 default_val : /default/i /(?:')?[\w\d.-]*(?:')?/
353 my $val = $item[2] || '';
356 meta_type => 'default',
361 create_table : /create/i global_temporary(?) /table/i
363 table_option : /[^;]+/
365 table_constraint : comment(s?) constraint_name(?) table_constraint_type deferrable(?) deferred(?) comment(s?)
367 my $desc = $item{'table_constraint_type'};
368 my $type = $desc->{'type'};
369 my $fields = $desc->{'fields'};
370 my $expression = $desc->{'expression'};
371 my @comments = ( @{ $item[1] }, @{ $item[-1] } );
374 name => $item{'constraint_name'}[0] || '',
375 type => 'constraint',
376 constraint_type => $type,
377 fields => $type ne 'check' ? $fields : [],
378 expression => $type eq 'check' ? $expression : '',
379 deferreable => $item{'deferrable'},
380 deferred => $item{'deferred'},
381 reference_table => $desc->{'reference_table'},
382 reference_fields => $desc->{'reference_fields'},
383 # match_type => $desc->{'match_type'}[0],
384 on_delete_do => $desc->{'on_delete_do'},
385 on_update_do => $desc->{'on_update_do'},
386 comments => [ @comments ],
390 table_constraint_type : /primary key/i '(' NAME(s /,/) ')'
393 type => 'primary_key',
398 /unique/i '(' NAME(s /,/) ')'
406 /check/ '(' /(.+)/ ')'
410 expression => $item[3],
414 /foreign key/i '(' NAME(s /,/) ')' /references/i table_name parens_word_list(?) on_delete_do(?)
417 type => 'foreign_key',
419 reference_table => $item[6],
420 reference_fields => $item[7][0],
421 match_type => $item[8][0],
422 on_delete_do => $item[9][0],
423 on_update_do => $item[10][0],
427 on_delete_do : /on delete/i WORD(s)
432 NAME : /\w+/ { $item[1] }
434 VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/
436 | /'.*?'/ # XXX doesn't handle embedded quotes
443 # -------------------------------------------------------------------
445 my ( $translator, $data ) = @_;
446 $parser ||= Parse::RecDescent->new($GRAMMAR);
448 local $::RD_TRACE = $translator->trace ? 1 : undef;
449 local $DEBUG = $translator->debug;
451 unless (defined $parser) {
452 return $translator->error("Error instantiating Parse::RecDescent ".
453 "instance: Bad grammer");
456 my $result = $parser->startrule($data);
457 die "Parse failed.\n" unless defined $result;
458 warn Dumper($result) if $DEBUG;
468 Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
472 perl(1), Parse::RecDescent.