1 package SQL::Translator::Parser::SQLServer;
3 # -------------------------------------------------------------------
4 # Copyright (C) 2002-2009 SQLFairy Authors
6 # This program is free software; you can redistribute it and/or
7 # modify it under the terms of the GNU General Public License as
8 # published by the Free Software Foundation; version 2.
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 # -------------------------------------------------------------------
23 SQL::Translator::Parser::SQLServer - parser for SQL Server
27 use SQL::Translator::Parser::SQLServer;
31 Adapted from Parser::Sybase and mostly parses the output of
32 Producer::SQLServer. The parsing is by no means complete and
33 should probably be considered a work in progress.
39 use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
41 $DEBUG = 0 unless defined $DEBUG;
44 use Parse::RecDescent;
46 use base qw(Exporter);
48 @EXPORT_OK = qw(parse);
57 my ( %tables, @table_comments, $table_order, %procedures, $proc_order, %views, $view_order );
60 startrule : statement(s) eofile
64 procedures => \%procedures,
71 statement : create_table
86 { @table_comments = () }
88 setuser : /setuser/i NAME GO
90 if : /if/i object_not_null begin if_command end GO
96 object_not_null : /object_id/i '(' ident ')' /is not null/i
98 print : /\s*/ /print/i /.*/
106 grant : /grant/i /[^\n]*/
108 exec : exec_statement(s) GO
110 exec_statement : /exec/i /[^\n]+/
112 comment : /^\s*(?:#|-{2}).*\n/
114 my $comment = $item[1];
115 $comment =~ s/^\s*(#|--)\s*//;
116 $comment =~ s/\s*$//;
118 push @table_comments, $comment;
121 comment : comment_start comment_middle comment_end
123 my $comment = $item[2];
124 $comment =~ s/^\s*|\s*$//mg;
125 $comment =~ s/^\**\s*//mg;
126 push @table_comments, $comment;
129 comment_start : m#^\s*\/\*#
131 comment_end : m#\s*\*\/#
133 comment_middle : m{([^*]+|\*(?!/))*}
138 create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
140 my $table_owner = $item[3]{'owner'};
141 my $table_name = $item[3]{'name'};
143 if ( @table_comments ) {
144 $tables{ $table_name }{'comments'} = [ @table_comments ];
145 @table_comments = ();
148 $tables{ $table_name }{'order'} = ++$table_order;
149 $tables{ $table_name }{'name'} = $table_name;
150 $tables{ $table_name }{'owner'} = $table_owner;
151 $tables{ $table_name }{'system'} = $item[7];
154 for my $def ( @{ $item[5] } ) {
155 if ( $def->{'supertype'} eq 'field' ) {
156 my $field_name = $def->{'name'};
157 $tables{ $table_name }{'fields'}{ $field_name } =
158 { %$def, order => $i };
161 if ( $def->{'is_primary_key'} ) {
162 push @{ $tables{ $table_name }{'constraints'} }, {
163 type => 'primary_key',
164 fields => [ $field_name ],
168 elsif ( $def->{'supertype'} eq 'constraint' ) {
169 push @{ $tables{ $table_name }{'constraints'} }, $def;
172 push @{ $tables{ $table_name }{'indices'} }, $def;
177 create_constraint : /create/i constraint
179 @table_comments = ();
180 push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
183 create_index : /create/i index
185 @table_comments = ();
186 push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
189 create_procedure : /create/i PROCEDURE WORD not_go GO
191 @table_comments = ();
192 my $proc_name = $item[3];
194 my $sql = "$item[1] $item[2] $proc_name $item[4]";
196 $procedures{ $proc_name }{'order'} = ++$proc_order;
197 $procedures{ $proc_name }{'name'} = $proc_name;
198 $procedures{ $proc_name }{'owner'} = $owner;
199 $procedures{ $proc_name }{'sql'} = $sql;
202 create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
204 @table_comments = ();
205 my $proc_name = $item[6];
206 my $owner = $item[4];
207 my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";
209 $procedures{ $proc_name }{'order'} = ++$proc_order;
210 $procedures{ $proc_name }{'name'} = $proc_name;
211 $procedures{ $proc_name }{'owner'} = $owner;
212 $procedures{ $proc_name }{'sql'} = $sql;
215 PROCEDURE : /procedure/i
218 create_view : /create/i /view/i WORD not_go GO
220 @table_comments = ();
221 my $view_name = $item[3];
222 my $sql = "$item[1] $item[2] $item[3] $item[4]";
224 $views{ $view_name }{'order'} = ++$view_order;
225 $views{ $view_name }{'name'} = $view_name;
226 $views{ $view_name }{'sql'} = $sql;
229 not_go : /((?!\bgo\b).)*/is
231 create_def : constraint
237 field : field_name data_type field_qualifier(s?)
239 my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] };
240 my $nullable = defined $qualifiers{'nullable'}
241 ? $qualifiers{'nullable'} : 1;
243 supertype => 'field',
244 name => $item{'field_name'},
245 data_type => $item{'data_type'}{'type'},
246 size => $item{'data_type'}{'size'},
247 nullable => $nullable,
248 default => $qualifiers{'default_val'},
249 is_auto_inc => $qualifiers{'is_auto_inc'},
250 # is_primary_key => $item{'primary_key'}[0],
254 field_qualifier : nullable
257 nullable => $item{'nullable'},
261 field_qualifier : default_val
264 default_val => $item{'default_val'},
268 field_qualifier : auto_inc
271 is_auto_inc => $item{'auto_inc'},
275 constraint : primary_key_constraint
276 | foreign_key_constraint
285 data_type : WORD field_size(?)
293 lock : /lock/i /datarows/i
297 field_size : '(' num_range ')' { $item{'num_range'} }
299 num_range : DIGITS ',' DIGITS
300 { $return = $item[1].','.$item[3] }
302 { $return = $item[1] }
305 nullable : /not/i /null/i
310 default_val : /default/i /null/i
312 | /default/i /'[^']*'/
313 { $item[2]=~ s/'//g; $return = $item[2] }
315 auto_inc : /identity/i { 1 }
317 primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
320 supertype => 'constraint',
322 type => 'primary_key',
327 foreign_key_constraint : /constraint/i index_name(?) /foreign/i /key/i parens_field_list /references/i table_name parens_field_list(?) on_delete(?) on_update(?)
330 supertype => 'constraint',
332 type => 'foreign_key',
334 reference_table => $item[7],
335 reference_fields => $item[8][0],
336 on_delete => $item[9][0],
337 on_update => $item[10][0],
341 unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
344 supertype => 'constraint',
346 clustered => $item[2][0],
348 table => $item[5][0],
353 on_delete : /on delete/i reference_option
356 on_update : /on update/i reference_option
359 reference_option: /cascade/i
364 clustered : /clustered/i
371 on_table : /on/i table_name
372 { $return = $item[2] }
374 on_system : /on/i /system/i
377 index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list ';'
380 supertype => 'index',
382 clustered => $item[1][0],
384 table => $item[4][0],
389 parens_field_list : '(' field_name(s /,/) ')'
392 ident : QUOTE(?) WORD '.' WORD QUOTE(?)
393 { $return = { owner => $item[2], name => $item[4] } }
395 { $return = { name => $item[1] } }
402 NAME : QUOTE(?) /\w+/ QUOTE(?)
415 # -------------------------------------------------------------------
417 my ( $translator, $data ) = @_;
418 my $parser = Parse::RecDescent->new($GRAMMAR);
420 local $::RD_TRACE = $translator->trace ? 1 : undef;
421 local $DEBUG = $translator->debug;
423 unless (defined $parser) {
424 return $translator->error("Error instantiating Parse::RecDescent ".
425 "instance: Bad grammer");
428 my $result = $parser->startrule($data);
429 return $translator->error( "Parse failed." ) unless defined $result;
430 warn Dumper( $result ) if $DEBUG;
432 my $schema = $translator->schema;
434 $result->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
435 } keys %{ $result->{tables} };
437 for my $table_name ( @tables ) {
438 my $tdata = $result->{tables}->{ $table_name };
439 my $table = $schema->add_table( name => $tdata->{'name'} )
440 or die "Can't create table '$table_name': ", $schema->error;
442 $table->comments( $tdata->{'comments'} );
445 $tdata->{'fields'}->{$a}->{'order'}
447 $tdata->{'fields'}->{$b}->{'order'}
448 } keys %{ $tdata->{'fields'} };
450 for my $fname ( @fields ) {
451 my $fdata = $tdata->{'fields'}{ $fname };
452 my $field = $table->add_field(
453 name => $fdata->{'name'},
454 data_type => $fdata->{'data_type'},
455 size => $fdata->{'size'},
456 default_value => $fdata->{'default'},
457 is_auto_increment => $fdata->{'is_auto_inc'},
458 is_nullable => $fdata->{'nullable'},
459 comments => $fdata->{'comments'},
460 ) or die $table->error;
462 $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
464 for my $qual ( qw[ binary unsigned zerofill list ] ) {
465 if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) {
466 next if ref $val eq 'ARRAY' && !@$val;
467 $field->extra( $qual, $val );
471 if ( $field->data_type =~ /(set|enum)/i && !$field->size ) {
472 my %extra = $field->extra;
474 for my $len ( map { length } @{ $extra{'list'} || [] } ) {
475 $longest = $len if $len > $longest;
477 $field->size( $longest ) if $longest;
480 for my $cdata ( @{ $fdata->{'constraints'} } ) {
481 next unless $cdata->{'type'} eq 'foreign_key';
482 $cdata->{'fields'} ||= [ $field->name ];
483 push @{ $tdata->{'constraints'} }, $cdata;
487 for my $idata ( @{ $tdata->{'indices'} || [] } ) {
488 my $index = $table->add_index(
489 name => $idata->{'name'},
490 type => uc $idata->{'type'},
491 fields => $idata->{'fields'},
492 ) or die $table->error;
495 for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
496 my $constraint = $table->add_constraint(
497 name => $cdata->{'name'},
498 type => $cdata->{'type'},
499 fields => $cdata->{'fields'},
500 reference_table => $cdata->{'reference_table'},
501 reference_fields => $cdata->{'reference_fields'},
502 match_type => $cdata->{'match_type'} || '',
503 on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
504 on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'},
505 ) or die $table->error;
509 my @procedures = sort {
510 $result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
511 } keys %{ $result->{procedures} };
512 for my $proc_name (@procedures) {
513 $schema->add_procedure(
515 owner => $result->{procedures}->{$proc_name}->{owner},
516 sql => $result->{procedures}->{$proc_name}->{sql},
521 $result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
522 } keys %{ $result->{views} };
523 for my $view_name (keys %{ $result->{views} }) {
526 sql => $result->{views}->{$view_name}->{sql},
535 # -------------------------------------------------------------------
536 # Every hero becomes a bore at last.
537 # Ralph Waldo Emerson
538 # -------------------------------------------------------------------
544 Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
545 Sybase parser, I just tweaked it for SQLServer. Thanks.
549 SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.