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.
22 our $VERSION = '1.61';
25 $DEBUG = 0 unless defined $DEBUG;
28 use SQL::Translator::Utils qw/ddl_parser_instance/;
30 use base qw(Exporter);
31 our @EXPORT_OK = qw(parse);
33 our $GRAMMAR = <<'END_OF_GRAMMAR';
36 my ( %tables, @table_comments, $table_order, %procedures, $proc_order, %views, $view_order );
40 my @up_to_N_lines = split (/\n/, $_[1], $max_lines + 1);
41 die sprintf ("Unable to parse line %d:\n%s\n",
43 join "\n", (map { "'$_'" } @up_to_N_lines[0..$max_lines - 1 ]), @up_to_N_lines > $max_lines ? '...' : ()
49 startrule : statement(s) eofile
53 procedures => \%procedures,
60 statement : create_table
74 | /^\Z/ | { _err ($thisline, $text) }
77 { @table_comments = () }
79 setuser : /setuser/i USERNAME GO
81 if : /if/i object_not_null begin if_command end GO
87 object_not_null : /object_id/i '(' SQSTRING ')' /is not null/i
89 field_not_null : /where/i field_name /is \s+ not \s+ null/ix
91 print : /\s*/ /print/i /.*/
99 grant : /grant/i /[^\n]*/
101 exec : exec_statement(s) GO
103 exec_statement : /exec/i /[^\n]+/
105 comment : /^\s*(?:#|-{2}).*\n/
107 my $comment = $item[1];
108 $comment =~ s/^\s*(#|--)\s*//;
109 $comment =~ s/\s*$//;
111 push @table_comments, $comment;
114 comment : comment_start comment_middle comment_end
116 my $comment = $item[2];
117 $comment =~ s/^\s*|\s*$//mg;
118 $comment =~ s/^\**\s*//mg;
119 push @table_comments, $comment;
122 comment_start : m#^\s*\/\*#
124 comment_end : m#\s*\*\/#
126 comment_middle : m{([^*]+|\*(?!/))*}
128 drop : if_exists(?) /drop/i tbl_drop END_STATEMENT
130 tbl_drop : /table/i ident
132 if_exists : /if exists/i '(' /select/i 'name' /from/i 'sysobjects' /[^\)]+/ ')'
137 create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
139 my $table_owner = $item[3]{'owner'};
140 my $table_name = $item[3]{'name'};
142 if ( @table_comments ) {
143 $tables{ $table_name }{'comments'} = [ @table_comments ];
144 @table_comments = ();
147 $tables{ $table_name }{'order'} = ++$table_order;
148 $tables{ $table_name }{'name'} = $table_name;
149 $tables{ $table_name }{'owner'} = $table_owner;
150 $tables{ $table_name }{'system'} = $item[7];
153 for my $def ( @{ $item[5] } ) {
154 if ( $def->{'supertype'} eq 'field' ) {
155 my $field_name = $def->{'name'};
156 $tables{ $table_name }{'fields'}{ $field_name } =
157 { %$def, order => $i };
160 if ( $def->{'is_primary_key'} ) {
161 push @{ $tables{ $table_name }{'constraints'} }, {
162 type => 'primary_key',
163 fields => [ $field_name ],
167 elsif ( $def->{'supertype'} eq 'constraint' ) {
168 push @{ $tables{ $table_name }{'constraints'} }, $def;
171 push @{ $tables{ $table_name }{'indices'} }, $def;
176 disable_constraints : if_exists(?) /alter/i /table/i ident /nocheck/i /constraint/i /all/i END_STATEMENT
178 # this is for the normal case
179 create_constraint : /create/i constraint END_STATEMENT
181 @table_comments = ();
182 push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
185 # and this is for the BEGIN/END case
186 create_constraint : /create/i constraint
188 @table_comments = ();
189 push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
193 create_constraint : /alter/i /table/i ident /add/i foreign_key_constraint END_STATEMENT
195 push @{ $tables{ $item[3]{name} }{constraints} }, $item[5];
199 create_index : /create/i index
201 @table_comments = ();
202 push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
205 create_procedure : /create/i PROCEDURE WORD not_go GO
207 @table_comments = ();
208 my $proc_name = $item[3];
210 my $sql = "$item[1] $item[2] $proc_name $item[4]";
212 $procedures{ $proc_name }{'order'} = ++$proc_order;
213 $procedures{ $proc_name }{'name'} = $proc_name;
214 $procedures{ $proc_name }{'owner'} = $owner;
215 $procedures{ $proc_name }{'sql'} = $sql;
218 create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
220 @table_comments = ();
221 my $proc_name = $item[6];
222 my $owner = $item[4];
223 my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";
225 $procedures{ $proc_name }{'order'} = ++$proc_order;
226 $procedures{ $proc_name }{'name'} = $proc_name;
227 $procedures{ $proc_name }{'owner'} = $owner;
228 $procedures{ $proc_name }{'sql'} = $sql;
231 PROCEDURE : /procedure/i
234 create_view : /create/i /view/i WORD not_go GO
236 @table_comments = ();
237 my $view_name = $item[3];
238 my $sql = "$item[1] $item[2] $item[3] $item[4]";
240 $views{ $view_name }{'order'} = ++$view_order;
241 $views{ $view_name }{'name'} = $view_name;
242 $views{ $view_name }{'sql'} = $sql;
245 not_go : /((?!\bgo\b).)*/is
247 create_def : constraint
253 field : field_name data_type field_qualifier(s?)
255 my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] };
256 my $nullable = defined $qualifiers{'nullable'}
257 ? $qualifiers{'nullable'} : 1;
259 supertype => 'field',
260 name => $item{'field_name'},
261 data_type => $item{'data_type'}{'type'},
262 size => $item{'data_type'}{'size'},
263 nullable => $nullable,
264 default => $qualifiers{'default_val'},
265 is_auto_inc => $qualifiers{'is_auto_inc'},
266 # is_primary_key => $item{'primary_key'}[0],
270 field_qualifier : nullable
273 nullable => $item{'nullable'},
277 field_qualifier : default_val
280 default_val => $item{'default_val'},
284 field_qualifier : auto_inc
287 is_auto_inc => $item{'auto_inc'},
291 constraint : primary_key_constraint
292 | foreign_key_constraint
301 data_type : WORD field_size(?)
309 lock : /lock/i /datarows/i
313 field_size : '(' num_range ')' { $item{'num_range'} }
315 num_range : DIGITS ',' DIGITS
316 { $return = $item[1].','.$item[3] }
318 { $return = $item[1] }
321 nullable : /not/i /null/i
326 default_val : /default/i /null/i
328 | /default/i SQSTRING
329 { $return = $item[2] }
331 { $return = $item[2] }
333 auto_inc : /identity/i { 1 }
335 primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
338 supertype => 'constraint',
340 type => 'primary_key',
345 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(?)
348 supertype => 'constraint',
350 type => 'foreign_key',
352 reference_table => $item[7],
353 reference_fields => $item[8][0],
354 on_delete => $item[9][0],
355 on_update => $item[10][0],
359 unique_constraint : /constraint/i index_name(?) /unique/i parens_field_list
362 supertype => 'constraint',
369 unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list field_not_null(?)
372 supertype => 'constraint',
374 clustered => $item[2][0],
376 table => $item[5][0],
381 on_delete : /on delete/i reference_option
384 on_update : /on update/i reference_option
387 reference_option: /cascade/i
392 clustered : /clustered/i
399 on_table : /on/i table_name
400 { $return = $item[2] }
402 on_system : /on/i /system/i
405 index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list END_STATEMENT
408 supertype => 'index',
410 clustered => $item[1][0],
412 table => $item[4][0],
417 parens_field_list : '(' field_name(s /,/) ')'
420 ident : NAME '.' NAME
421 { $return = { owner => $item[1], name => $item[3] } }
423 { $return = { name => $item[1] } }
443 SQSTRING : "'" <skip: ''> /(?:[^']|'')*/ "'"
444 { ($return = $item[3]) =~ s/''/'/g }
446 DQSTRING : '"' <skip: ''> /(?:[^"]|"")+/ '"'
447 { ($return = $item[3]) =~ s/""/"/g }
449 BQSTRING : '[' <skip: ''> /(?:[^]]|]])+/ ']'
450 { ($return = $item[3]) =~ s/]]/]/g; }
455 my ( $translator, $data ) = @_;
457 # Enable warnings within the Parse::RecDescent module.
458 local $::RD_ERRORS = 1 unless defined $::RD_ERRORS; # Make sure the parser dies when it encounters an error
459 local $::RD_WARN = 1 unless defined $::RD_WARN; # Enable warnings. This will warn on unused rules &c.
460 local $::RD_HINT = 1 unless defined $::RD_HINT; # Give out hints to help fix problems.
462 local $::RD_TRACE = $translator->trace ? 1 : undef;
463 local $DEBUG = $translator->debug;
465 my $parser = ddl_parser_instance('SQLServer');
467 my $result = $parser->startrule($data);
468 return $translator->error( "Parse failed." ) unless defined $result;
469 warn Dumper( $result ) if $DEBUG;
471 my $schema = $translator->schema;
473 $result->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
474 } keys %{ $result->{tables} };
476 for my $table_name ( @tables ) {
477 my $tdata = $result->{tables}->{ $table_name };
478 my $table = $schema->add_table( name => $tdata->{'name'} )
479 or die "Can't create table '$table_name': ", $schema->error;
481 $table->comments( $tdata->{'comments'} );
484 $tdata->{'fields'}->{$a}->{'order'}
486 $tdata->{'fields'}->{$b}->{'order'}
487 } keys %{ $tdata->{'fields'} };
489 for my $fname ( @fields ) {
490 my $fdata = $tdata->{'fields'}{ $fname };
491 my $field = $table->add_field(
492 name => $fdata->{'name'},
493 data_type => $fdata->{'data_type'},
494 size => $fdata->{'size'},
495 default_value => $fdata->{'default'},
496 is_auto_increment => $fdata->{'is_auto_inc'},
497 is_nullable => $fdata->{'nullable'},
498 comments => $fdata->{'comments'},
499 ) or die $table->error;
501 $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
503 for my $qual ( qw[ binary unsigned zerofill list ] ) {
504 if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) {
505 next if ref $val eq 'ARRAY' && !@$val;
506 $field->extra( $qual, $val );
510 if ( $field->data_type =~ /(set|enum)/i && !$field->size ) {
511 my %extra = $field->extra;
513 for my $len ( map { length } @{ $extra{'list'} || [] } ) {
514 $longest = $len if $len > $longest;
516 $field->size( $longest ) if $longest;
519 for my $cdata ( @{ $fdata->{'constraints'} } ) {
520 next unless $cdata->{'type'} eq 'foreign_key';
521 $cdata->{'fields'} ||= [ $field->name ];
522 push @{ $tdata->{'constraints'} }, $cdata;
526 for my $idata ( @{ $tdata->{'indices'} || [] } ) {
527 my $index = $table->add_index(
528 name => $idata->{'name'},
529 type => uc $idata->{'type'},
530 fields => $idata->{'fields'},
531 ) or die $table->error;
534 for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
535 my $constraint = $table->add_constraint(
536 name => $cdata->{'name'},
537 type => $cdata->{'type'},
538 fields => $cdata->{'fields'},
539 reference_table => $cdata->{'reference_table'},
540 reference_fields => $cdata->{'reference_fields'},
541 match_type => $cdata->{'match_type'} || '',
542 on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
543 on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'},
544 ) or die $table->error;
548 my @procedures = sort {
549 $result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
550 } keys %{ $result->{procedures} };
551 for my $proc_name (@procedures) {
552 $schema->add_procedure(
554 owner => $result->{procedures}->{$proc_name}->{owner},
555 sql => $result->{procedures}->{$proc_name}->{sql},
560 $result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
561 } keys %{ $result->{views} };
562 for my $view_name (keys %{ $result->{views} }) {
565 sql => $result->{views}->{$view_name}->{sql},
574 # -------------------------------------------------------------------
575 # Every hero becomes a bore at last.
576 # Ralph Waldo Emerson
577 # -------------------------------------------------------------------
583 Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
584 Sybase parser, I just tweaked it for SQLServer. Thanks.
588 SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.