1 package SQL::Translator::Parser::SQLServer;
5 SQL::Translator::Parser::SQLServer - parser for SQL Server
9 use SQL::Translator::Parser::SQLServer;
13 Adapted from Parser::Sybase and mostly parses the output of
14 Producer::SQLServer. The parsing is by no means complete and
15 should probably be considered a work in progress.
21 use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
23 $DEBUG = 0 unless defined $DEBUG;
26 use Parse::RecDescent;
28 use base qw(Exporter);
30 @EXPORT_OK = qw(parse);
39 my ( %tables, @table_comments, $table_order, %procedures, $proc_order, %views, $view_order );
42 startrule : statement(s) eofile
46 procedures => \%procedures,
53 statement : create_table
69 { @table_comments = () }
71 setuser : /setuser/i NAME GO
73 if : /if/i object_not_null begin if_command end GO
79 object_not_null : /object_id/i '(' ident ')' /is not null/i
81 print : /\s*/ /print/i /.*/
89 grant : /grant/i /[^\n]*/
91 exec : exec_statement(s) GO
93 exec_statement : /exec/i /[^\n]+/
95 comment : /^\s*(?:#|-{2}).*\n/
97 my $comment = $item[1];
98 $comment =~ s/^\s*(#|--)\s*//;
101 push @table_comments, $comment;
104 comment : comment_start comment_middle comment_end
106 my $comment = $item[2];
107 $comment =~ s/^\s*|\s*$//mg;
108 $comment =~ s/^\**\s*//mg;
109 push @table_comments, $comment;
112 comment_start : m#^\s*\/\*#
114 comment_end : m#\s*\*\/#
116 comment_middle : m{([^*]+|\*(?!/))*}
118 drop : if_exists(?) /drop/i tbl_drop END_STATEMENT
120 tbl_drop : /table/i NAME
122 if_exists : /if exists/i '(' /select/i 'name' /from/i 'sysobjects' /[^\)]+/ ')'
127 create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
129 my $table_owner = $item[3]{'owner'};
130 my $table_name = $item[3]{'name'};
132 if ( @table_comments ) {
133 $tables{ $table_name }{'comments'} = [ @table_comments ];
134 @table_comments = ();
137 $tables{ $table_name }{'order'} = ++$table_order;
138 $tables{ $table_name }{'name'} = $table_name;
139 $tables{ $table_name }{'owner'} = $table_owner;
140 $tables{ $table_name }{'system'} = $item[7];
143 for my $def ( @{ $item[5] } ) {
144 if ( $def->{'supertype'} eq 'field' ) {
145 my $field_name = $def->{'name'};
146 $tables{ $table_name }{'fields'}{ $field_name } =
147 { %$def, order => $i };
150 if ( $def->{'is_primary_key'} ) {
151 push @{ $tables{ $table_name }{'constraints'} }, {
152 type => 'primary_key',
153 fields => [ $field_name ],
157 elsif ( $def->{'supertype'} eq 'constraint' ) {
158 push @{ $tables{ $table_name }{'constraints'} }, $def;
161 push @{ $tables{ $table_name }{'indices'} }, $def;
166 create_constraint : /create/i constraint
168 @table_comments = ();
169 push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
172 create_constraint : /alter/i /table/i ident /add/i foreign_key_constraint END_STATEMENT
174 push @{ $tables{ $item[3]{name} }{constraints} }, $item[5];
177 create_index : /create/i index
179 @table_comments = ();
180 push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
183 create_procedure : /create/i PROCEDURE WORD not_go GO
185 @table_comments = ();
186 my $proc_name = $item[3];
188 my $sql = "$item[1] $item[2] $proc_name $item[4]";
190 $procedures{ $proc_name }{'order'} = ++$proc_order;
191 $procedures{ $proc_name }{'name'} = $proc_name;
192 $procedures{ $proc_name }{'owner'} = $owner;
193 $procedures{ $proc_name }{'sql'} = $sql;
196 create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
198 @table_comments = ();
199 my $proc_name = $item[6];
200 my $owner = $item[4];
201 my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";
203 $procedures{ $proc_name }{'order'} = ++$proc_order;
204 $procedures{ $proc_name }{'name'} = $proc_name;
205 $procedures{ $proc_name }{'owner'} = $owner;
206 $procedures{ $proc_name }{'sql'} = $sql;
209 PROCEDURE : /procedure/i
212 create_view : /create/i /view/i WORD not_go GO
214 @table_comments = ();
215 my $view_name = $item[3];
216 my $sql = "$item[1] $item[2] $item[3] $item[4]";
218 $views{ $view_name }{'order'} = ++$view_order;
219 $views{ $view_name }{'name'} = $view_name;
220 $views{ $view_name }{'sql'} = $sql;
223 not_go : /((?!\bgo\b).)*/is
225 create_def : constraint
231 field : field_name data_type field_qualifier(s?)
233 my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] };
234 my $nullable = defined $qualifiers{'nullable'}
235 ? $qualifiers{'nullable'} : 1;
237 supertype => 'field',
238 name => $item{'field_name'},
239 data_type => $item{'data_type'}{'type'},
240 size => $item{'data_type'}{'size'},
241 nullable => $nullable,
242 default => $qualifiers{'default_val'},
243 is_auto_inc => $qualifiers{'is_auto_inc'},
244 # is_primary_key => $item{'primary_key'}[0],
248 field_qualifier : nullable
251 nullable => $item{'nullable'},
255 field_qualifier : default_val
258 default_val => $item{'default_val'},
262 field_qualifier : auto_inc
265 is_auto_inc => $item{'auto_inc'},
269 constraint : primary_key_constraint
270 | foreign_key_constraint
279 data_type : WORD field_size(?)
287 lock : /lock/i /datarows/i
291 field_size : '(' num_range ')' { $item{'num_range'} }
293 num_range : DIGITS ',' DIGITS
294 { $return = $item[1].','.$item[3] }
296 { $return = $item[1] }
299 nullable : /not/i /null/i
304 default_val : /default/i /null/i
306 | /default/i /'[^']*'/
307 { $item[2]=~ s/'//g; $return = $item[2] }
309 { $return = $item[2] }
311 auto_inc : /identity/i { 1 }
313 primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
316 supertype => 'constraint',
318 type => 'primary_key',
323 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(?)
326 supertype => 'constraint',
328 type => 'foreign_key',
330 reference_table => $item[7],
331 reference_fields => $item[8][0],
332 on_delete => $item[9][0],
333 on_update => $item[10][0],
337 unique_constraint : /constraint/i index_name(?) /unique/i parens_field_list
340 supertype => 'constraint',
347 unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
350 supertype => 'constraint',
352 clustered => $item[2][0],
354 table => $item[5][0],
359 on_delete : /on delete/i reference_option
362 on_update : /on update/i reference_option
365 reference_option: /cascade/i
370 clustered : /clustered/i
377 on_table : /on/i table_name
378 { $return = $item[2] }
380 on_system : /on/i /system/i
383 index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list END_STATEMENT
386 supertype => 'index',
388 clustered => $item[1][0],
390 table => $item[4][0],
395 parens_field_list : '(' field_name(s /,/) ')'
398 ident : QUOTE(?) WORD '.' WORD QUOTE(?)
399 { $return = { owner => $item[2], name => $item[4] } }
401 { $return = { name => $item[1] } }
408 NAME : QUOTE(?) /\w+/ QUOTE(?)
421 # -------------------------------------------------------------------
423 my ( $translator, $data ) = @_;
424 my $parser = Parse::RecDescent->new($GRAMMAR);
426 local $::RD_TRACE = $translator->trace ? 1 : undef;
427 local $DEBUG = $translator->debug;
429 unless (defined $parser) {
430 return $translator->error("Error instantiating Parse::RecDescent ".
431 "instance: Bad grammer");
434 my $result = $parser->startrule($data);
435 return $translator->error( "Parse failed." ) unless defined $result;
436 warn Dumper( $result ) if $DEBUG;
438 my $schema = $translator->schema;
440 $result->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
441 } keys %{ $result->{tables} };
443 for my $table_name ( @tables ) {
444 my $tdata = $result->{tables}->{ $table_name };
445 my $table = $schema->add_table( name => $tdata->{'name'} )
446 or die "Can't create table '$table_name': ", $schema->error;
448 $table->comments( $tdata->{'comments'} );
451 $tdata->{'fields'}->{$a}->{'order'}
453 $tdata->{'fields'}->{$b}->{'order'}
454 } keys %{ $tdata->{'fields'} };
456 for my $fname ( @fields ) {
457 my $fdata = $tdata->{'fields'}{ $fname };
458 my $field = $table->add_field(
459 name => $fdata->{'name'},
460 data_type => $fdata->{'data_type'},
461 size => $fdata->{'size'},
462 default_value => $fdata->{'default'},
463 is_auto_increment => $fdata->{'is_auto_inc'},
464 is_nullable => $fdata->{'nullable'},
465 comments => $fdata->{'comments'},
466 ) or die $table->error;
468 $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
470 for my $qual ( qw[ binary unsigned zerofill list ] ) {
471 if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) {
472 next if ref $val eq 'ARRAY' && !@$val;
473 $field->extra( $qual, $val );
477 if ( $field->data_type =~ /(set|enum)/i && !$field->size ) {
478 my %extra = $field->extra;
480 for my $len ( map { length } @{ $extra{'list'} || [] } ) {
481 $longest = $len if $len > $longest;
483 $field->size( $longest ) if $longest;
486 for my $cdata ( @{ $fdata->{'constraints'} } ) {
487 next unless $cdata->{'type'} eq 'foreign_key';
488 $cdata->{'fields'} ||= [ $field->name ];
489 push @{ $tdata->{'constraints'} }, $cdata;
493 for my $idata ( @{ $tdata->{'indices'} || [] } ) {
494 my $index = $table->add_index(
495 name => $idata->{'name'},
496 type => uc $idata->{'type'},
497 fields => $idata->{'fields'},
498 ) or die $table->error;
501 for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
502 my $constraint = $table->add_constraint(
503 name => $cdata->{'name'},
504 type => $cdata->{'type'},
505 fields => $cdata->{'fields'},
506 reference_table => $cdata->{'reference_table'},
507 reference_fields => $cdata->{'reference_fields'},
508 match_type => $cdata->{'match_type'} || '',
509 on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
510 on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'},
511 ) or die $table->error;
515 my @procedures = sort {
516 $result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
517 } keys %{ $result->{procedures} };
518 for my $proc_name (@procedures) {
519 $schema->add_procedure(
521 owner => $result->{procedures}->{$proc_name}->{owner},
522 sql => $result->{procedures}->{$proc_name}->{sql},
527 $result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
528 } keys %{ $result->{views} };
529 for my $view_name (keys %{ $result->{views} }) {
532 sql => $result->{views}->{$view_name}->{sql},
541 # -------------------------------------------------------------------
542 # Every hero becomes a bore at last.
543 # Ralph Waldo Emerson
544 # -------------------------------------------------------------------
550 Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
551 Sybase parser, I just tweaked it for SQLServer. Thanks.
555 SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.