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 );
43 my @up_to_N_lines = split (/\n/, $_[1], $max_lines + 1);
44 die sprintf ("Unable to parse line %d:\n%s\n",
46 join "\n", (map { "'$_'" } @up_to_N_lines[0..$max_lines - 1 ]), @up_to_N_lines > $max_lines ? '...' : ()
52 startrule : statement(s) eofile
56 procedures => \%procedures,
63 statement : create_table
77 | /^\Z/ | { _err ($thisline, $text) }
80 { @table_comments = () }
82 setuser : /setuser/i NAME GO
84 if : /if/i object_not_null begin if_command end GO
90 object_not_null : /object_id/i '(' ident ')' /is not null/i
92 field_not_null : /where/i field_name /is \s+ not \s+ null/ix
94 print : /\s*/ /print/i /.*/
102 grant : /grant/i /[^\n]*/
104 exec : exec_statement(s) GO
106 exec_statement : /exec/i /[^\n]+/
108 comment : /^\s*(?:#|-{2}).*\n/
110 my $comment = $item[1];
111 $comment =~ s/^\s*(#|--)\s*//;
112 $comment =~ s/\s*$//;
114 push @table_comments, $comment;
117 comment : comment_start comment_middle comment_end
119 my $comment = $item[2];
120 $comment =~ s/^\s*|\s*$//mg;
121 $comment =~ s/^\**\s*//mg;
122 push @table_comments, $comment;
125 comment_start : m#^\s*\/\*#
127 comment_end : m#\s*\*\/#
129 comment_middle : m{([^*]+|\*(?!/))*}
131 drop : if_exists(?) /drop/i tbl_drop END_STATEMENT
133 tbl_drop : /table/i ident
135 if_exists : /if exists/i '(' /select/i 'name' /from/i 'sysobjects' /[^\)]+/ ')'
140 create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
142 my $table_owner = $item[3]{'owner'};
143 my $table_name = $item[3]{'name'};
145 if ( @table_comments ) {
146 $tables{ $table_name }{'comments'} = [ @table_comments ];
147 @table_comments = ();
150 $tables{ $table_name }{'order'} = ++$table_order;
151 $tables{ $table_name }{'name'} = $table_name;
152 $tables{ $table_name }{'owner'} = $table_owner;
153 $tables{ $table_name }{'system'} = $item[7];
156 for my $def ( @{ $item[5] } ) {
157 if ( $def->{'supertype'} eq 'field' ) {
158 my $field_name = $def->{'name'};
159 $tables{ $table_name }{'fields'}{ $field_name } =
160 { %$def, order => $i };
163 if ( $def->{'is_primary_key'} ) {
164 push @{ $tables{ $table_name }{'constraints'} }, {
165 type => 'primary_key',
166 fields => [ $field_name ],
170 elsif ( $def->{'supertype'} eq 'constraint' ) {
171 push @{ $tables{ $table_name }{'constraints'} }, $def;
174 push @{ $tables{ $table_name }{'indices'} }, $def;
179 disable_constraints : if_exists(?) /alter/i /table/i ident /nocheck/i /constraint/i /all/i END_STATEMENT
181 # this is for the normal case
182 create_constraint : /create/i constraint END_STATEMENT
184 @table_comments = ();
185 push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
188 # and this is for the BEGIN/END case
189 create_constraint : /create/i constraint
191 @table_comments = ();
192 push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
196 create_constraint : /alter/i /table/i ident /add/i foreign_key_constraint END_STATEMENT
198 push @{ $tables{ $item[3]{name} }{constraints} }, $item[5];
202 create_index : /create/i index
204 @table_comments = ();
205 push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
208 create_procedure : /create/i PROCEDURE WORD not_go GO
210 @table_comments = ();
211 my $proc_name = $item[3];
213 my $sql = "$item[1] $item[2] $proc_name $item[4]";
215 $procedures{ $proc_name }{'order'} = ++$proc_order;
216 $procedures{ $proc_name }{'name'} = $proc_name;
217 $procedures{ $proc_name }{'owner'} = $owner;
218 $procedures{ $proc_name }{'sql'} = $sql;
221 create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
223 @table_comments = ();
224 my $proc_name = $item[6];
225 my $owner = $item[4];
226 my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";
228 $procedures{ $proc_name }{'order'} = ++$proc_order;
229 $procedures{ $proc_name }{'name'} = $proc_name;
230 $procedures{ $proc_name }{'owner'} = $owner;
231 $procedures{ $proc_name }{'sql'} = $sql;
234 PROCEDURE : /procedure/i
237 create_view : /create/i /view/i WORD not_go GO
239 @table_comments = ();
240 my $view_name = $item[3];
241 my $sql = "$item[1] $item[2] $item[3] $item[4]";
243 $views{ $view_name }{'order'} = ++$view_order;
244 $views{ $view_name }{'name'} = $view_name;
245 $views{ $view_name }{'sql'} = $sql;
248 not_go : /((?!\bgo\b).)*/is
250 create_def : constraint
256 field : field_name data_type field_qualifier(s?)
258 my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] };
259 my $nullable = defined $qualifiers{'nullable'}
260 ? $qualifiers{'nullable'} : 1;
262 supertype => 'field',
263 name => $item{'field_name'},
264 data_type => $item{'data_type'}{'type'},
265 size => $item{'data_type'}{'size'},
266 nullable => $nullable,
267 default => $qualifiers{'default_val'},
268 is_auto_inc => $qualifiers{'is_auto_inc'},
269 # is_primary_key => $item{'primary_key'}[0],
273 field_qualifier : nullable
276 nullable => $item{'nullable'},
280 field_qualifier : default_val
283 default_val => $item{'default_val'},
287 field_qualifier : auto_inc
290 is_auto_inc => $item{'auto_inc'},
294 constraint : primary_key_constraint
295 | foreign_key_constraint
299 { $return = $item[1] }
301 { $return = $item[2] }
304 { $return = $item[1] }
306 { $return = $item[2] }
309 { $return = $item[1] }
311 { $return = $item[2] }
313 data_type : WORD field_size(?)
321 lock : /lock/i /datarows/i
325 field_size : '(' num_range ')' { $item{'num_range'} }
327 num_range : DIGITS ',' DIGITS
328 { $return = $item[1].','.$item[3] }
330 { $return = $item[1] }
333 nullable : /not/i /null/i
338 default_val : /default/i /null/i
340 | /default/i /'[^']*'/
341 { $item[2]=~ s/'//g; $return = $item[2] }
343 { $return = $item[2] }
345 auto_inc : /identity/i { 1 }
347 primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
350 supertype => 'constraint',
352 type => 'primary_key',
357 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(?)
360 supertype => 'constraint',
362 type => 'foreign_key',
364 reference_table => $item[7],
365 reference_fields => $item[8][0],
366 on_delete => $item[9][0],
367 on_update => $item[10][0],
371 unique_constraint : /constraint/i index_name(?) /unique/i parens_field_list
374 supertype => 'constraint',
381 unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list field_not_null(?)
384 supertype => 'constraint',
386 clustered => $item[2][0],
388 table => $item[5][0],
393 on_delete : /on delete/i reference_option
396 on_update : /on update/i reference_option
399 reference_option: /cascade/i
404 clustered : /clustered/i
411 on_table : /on/i table_name
412 { $return = $item[2] }
414 on_system : /on/i /system/i
417 index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list END_STATEMENT
420 supertype => 'index',
422 clustered => $item[1][0],
424 table => $item[4][0],
429 parens_field_list : '(' field_name(s /,/) ')'
432 ident : QUOTE WORD '.' WORD QUOTE | LQUOTE WORD '.' WORD RQUOTE
433 { $return = { owner => $item[2], name => $item[4] } }
434 | LQUOTE WORD RQUOTE '.' LQUOTE WORD RQUOTE
435 { $return = { owner => $item[2], name => $item[6] } }
437 { $return = { name => $item[2] } }
439 { $return = { owner => $item[1], name => $item[3] } }
441 { $return = { name => $item[1] } }
448 NAME : QUOTE(?) /\w+/ QUOTE(?)
466 my ( $translator, $data ) = @_;
467 my $parser = Parse::RecDescent->new($GRAMMAR);
469 local $::RD_TRACE = $translator->trace ? 1 : undef;
470 local $DEBUG = $translator->debug;
472 unless (defined $parser) {
473 return $translator->error("Error instantiating Parse::RecDescent ".
474 "instance: Bad grammer");
477 my $result = $parser->startrule($data);
478 return $translator->error( "Parse failed." ) unless defined $result;
479 warn Dumper( $result ) if $DEBUG;
481 my $schema = $translator->schema;
483 $result->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
484 } keys %{ $result->{tables} };
486 for my $table_name ( @tables ) {
487 my $tdata = $result->{tables}->{ $table_name };
488 my $table = $schema->add_table( name => $tdata->{'name'} )
489 or die "Can't create table '$table_name': ", $schema->error;
491 $table->comments( $tdata->{'comments'} );
494 $tdata->{'fields'}->{$a}->{'order'}
496 $tdata->{'fields'}->{$b}->{'order'}
497 } keys %{ $tdata->{'fields'} };
499 for my $fname ( @fields ) {
500 my $fdata = $tdata->{'fields'}{ $fname };
501 my $field = $table->add_field(
502 name => $fdata->{'name'},
503 data_type => $fdata->{'data_type'},
504 size => $fdata->{'size'},
505 default_value => $fdata->{'default'},
506 is_auto_increment => $fdata->{'is_auto_inc'},
507 is_nullable => $fdata->{'nullable'},
508 comments => $fdata->{'comments'},
509 ) or die $table->error;
511 $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
513 for my $qual ( qw[ binary unsigned zerofill list ] ) {
514 if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) {
515 next if ref $val eq 'ARRAY' && !@$val;
516 $field->extra( $qual, $val );
520 if ( $field->data_type =~ /(set|enum)/i && !$field->size ) {
521 my %extra = $field->extra;
523 for my $len ( map { length } @{ $extra{'list'} || [] } ) {
524 $longest = $len if $len > $longest;
526 $field->size( $longest ) if $longest;
529 for my $cdata ( @{ $fdata->{'constraints'} } ) {
530 next unless $cdata->{'type'} eq 'foreign_key';
531 $cdata->{'fields'} ||= [ $field->name ];
532 push @{ $tdata->{'constraints'} }, $cdata;
536 for my $idata ( @{ $tdata->{'indices'} || [] } ) {
537 my $index = $table->add_index(
538 name => $idata->{'name'},
539 type => uc $idata->{'type'},
540 fields => $idata->{'fields'},
541 ) or die $table->error;
544 for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
545 my $constraint = $table->add_constraint(
546 name => $cdata->{'name'},
547 type => $cdata->{'type'},
548 fields => $cdata->{'fields'},
549 reference_table => $cdata->{'reference_table'},
550 reference_fields => $cdata->{'reference_fields'},
551 match_type => $cdata->{'match_type'} || '',
552 on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
553 on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'},
554 ) or die $table->error;
558 my @procedures = sort {
559 $result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
560 } keys %{ $result->{procedures} };
561 for my $proc_name (@procedures) {
562 $schema->add_procedure(
564 owner => $result->{procedures}->{$proc_name}->{owner},
565 sql => $result->{procedures}->{$proc_name}->{sql},
570 $result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
571 } keys %{ $result->{views} };
572 for my $view_name (keys %{ $result->{views} }) {
575 sql => $result->{views}->{$view_name}->{sql},
584 # -------------------------------------------------------------------
585 # Every hero becomes a bore at last.
586 # Ralph Waldo Emerson
587 # -------------------------------------------------------------------
593 Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
594 Sybase parser, I just tweaked it for SQLServer. Thanks.
598 SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.