1 package SQL::Translator::Producer::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::Producer::SQLServer - MS SQLServer producer for SQL::Translator
29 my $t = SQL::Translator->new( parser => '...', producer => 'SQLServer' );
34 B<WARNING>B This is still fairly early code, basically a hacked version of the
35 Sybase Producer (thanks Sam, Paul and Ken for doing the real work ;-)
37 =head1 Extra Attributes
43 List of values for an enum field.
49 * !! Write some tests !!
50 * Reserved words list needs updating to SQLServer.
51 * Triggers, Procedures and Views DO NOT WORK
56 use vars qw[ $DEBUG $WARN $VERSION ];
58 $DEBUG = 1 unless defined $DEBUG;
61 use SQL::Translator::Schema::Constants;
62 use SQL::Translator::Utils qw(debug header_comment);
63 use SQL::Translator::ProducerUtils;
65 my $util = SQL::Translator::ProducerUtils->new( quote_chars => ['[', ']'] );
71 #integer => 'numeric',
75 #varchar => 'varchar',
76 #varchar2 => 'varchar',
77 #timestamp => 'datetime',
79 #real => 'double precision',
82 #tinyint => 'smallint',
83 #float => 'double precision',
85 #boolean => 'varchar',
90 # If these datatypes have size appended the sql fails.
91 my @no_size = qw/tinyint smallint int integer bigint text bit image datetime/;
93 my $max_id_length = 128;
98 =head1 SQLServer Create Table Syntax
105 my $translator = shift;
106 $DEBUG = $translator->debug;
107 $WARN = $translator->show_warnings;
108 my $no_comments = $translator->no_comments;
109 my $add_drop_table = $translator->add_drop_table;
110 my $schema = $translator->schema;
112 %global_names = (); #reset
115 $output .= header_comment."\n" unless ($no_comments);
117 # Generate the DROP statements.
118 if ($add_drop_table) {
119 my @tables = sort { $b->order <=> $a->order } $schema->get_tables;
120 $output .= "--\n-- Turn off constraints\n--\n\n" unless $no_comments;
121 foreach my $table (@tables) {
122 my $name = $table->name;
123 my $q_name = unreserve($name);
124 $output .= "IF EXISTS (SELECT name FROM sysobjects WHERE name = '$name' AND type = 'U') ALTER TABLE $q_name NOCHECK CONSTRAINT all;\n"
127 $output .= "--\n-- Drop tables\n--\n\n" unless $no_comments;
128 foreach my $table (@tables) {
129 my $name = $table->name;
130 my $q_name = unreserve($name);
131 $output .= "IF EXISTS (SELECT name FROM sysobjects WHERE name = '$name' AND type = 'U') DROP TABLE $q_name;\n"
135 # Generate the CREATE sql
137 my @foreign_constraints = (); # these need to be added separately, as tables may not exist yet
139 for my $table ( $schema->get_tables ) {
140 my $table_name = $table->name or next;
141 my $table_name_ur = unreserve($table_name) || '';
143 my ( @comments, @field_defs, @index_defs, @constraint_defs );
145 push @comments, "\n\n--\n-- Table: $table_name_ur\n--"
148 push @comments, map { "-- $_" } $table->comments;
153 my %field_name_scope;
154 for my $field ( $table->get_fields ) {
155 my $field_name = $field->name;
156 my $field_name_ur = unreserve( $field_name );
157 my $field_def = qq["$field_name_ur"];
158 $field_def =~ s/\"//g;
159 if ( $field_def =~ /identity/ ){
160 $field_def =~ s/identity/pidentity/;
166 my $data_type = lc $field->data_type;
167 my $orig_data_type = $data_type;
168 my %extra = $field->extra;
169 my $list = $extra{'list'} || [];
170 # \todo deal with embedded quotes
171 my $commalist = join( ', ', map { qq['$_'] } @$list );
173 if ( $data_type eq 'enum' ) {
174 my $check_name = mk_name( $field_name . '_chk' );
175 push @constraint_defs,
176 "CONSTRAINT $check_name CHECK ($field_name IN ($commalist))";
177 $data_type .= 'character varying';
179 elsif ( $data_type eq 'set' ) {
180 $data_type .= 'character varying';
182 elsif ( grep { $data_type eq $_ } qw/bytea blob clob/ ) {
183 $data_type = 'varbinary';
186 if ( defined $translate{ $data_type } ) {
187 $data_type = $translate{ $data_type };
190 warn "Unknown datatype: $data_type ",
191 "($table_name.$field_name)\n" if $WARN;
195 my $size = $field->size;
196 if ( grep $_ eq $data_type, @no_size) {
197 # SQLServer doesn't seem to like sizes on some datatypes
201 if ( $data_type =~ /numeric/ ) {
204 elsif ( $orig_data_type eq 'text' ) {
205 #interpret text fields as long varchars
209 $data_type eq 'varchar' &&
210 $orig_data_type eq 'boolean'
214 elsif ( $data_type eq 'varchar' ) {
219 $field_def .= " $data_type";
220 $field_def .= "($size)" if $size;
222 $field_def .= ' IDENTITY' if $field->is_auto_increment;
225 # Not null constraint
227 unless ( $field->is_nullable ) {
228 $field_def .= ' NOT NULL';
231 $field_def .= ' NULL' if $data_type ne 'bit';
237 SQL::Translator::Producer->_apply_default_value(
245 push @field_defs, $field_def;
249 # Constraint Declarations
251 my @constraint_decs = ();
252 for my $constraint ( $table->get_constraints ) {
253 my $name = $constraint->name || '';
254 my $name_ur = unreserve($name);
255 # Make sure we get a unique name
256 my $type = $constraint->type || NORMAL;
257 my @fields = map { unreserve( $_ ) }
259 my @rfields = map { unreserve( $_ ) }
260 $constraint->reference_fields;
264 if ( $type eq FOREIGN_KEY ) {
265 $name ||= mk_name( $table_name . '_fk' );
266 my $on_delete = uc ($constraint->on_delete || '');
267 my $on_update = uc ($constraint->on_update || '');
269 # The default implicit constraint action in MSSQL is RESTRICT
270 # but you can not specify it explicitly. Go figure :)
271 for ($on_delete, $on_update) {
272 undef $_ if $_ eq 'RESTRICT'
276 "ALTER TABLE $table_name_ur ADD CONSTRAINT $name_ur FOREIGN KEY".
277 ' (' . join( ', ', @fields ) . ') REFERENCES '.
278 unreserve($constraint->reference_table).
279 ' (' . join( ', ', @rfields ) . ')'
282 if ( $on_delete && $on_delete ne "NO ACTION") {
283 $c_def .= " ON DELETE $on_delete";
285 if ( $on_update && $on_update ne "NO ACTION") {
286 $c_def .= " ON UPDATE $on_update";
291 push @foreign_constraints, $c_def;
296 if ( $type eq PRIMARY_KEY ) {
297 $name = ($name ? unreserve($name) : mk_name( $table_name . '_pk' ));
299 "CONSTRAINT $name PRIMARY KEY ".
300 '(' . join( ', ', @fields ) . ')';
302 elsif ( $type eq UNIQUE ) {
303 $name = $name_ur || mk_name( $table_name . '_uc' );
304 my @nullable = grep { $_->is_nullable } $constraint->fields;
307 "CONSTRAINT $name UNIQUE " .
308 '(' . join( ', ', @fields ) . ')';
311 "CREATE UNIQUE NONCLUSTERED INDEX $name_ur ON $table_name_ur (" .
312 join( ', ', @fields ) . ')' .
313 ' WHERE ' . join( ' AND ', map unreserve($_->name) . ' IS NOT NULL', @nullable ) . ';';
317 push @constraint_defs, $c_def;
323 for my $index ( $table->get_indices ) {
324 my $idx_name = $index->name || mk_name($table_name . '_idx');
325 my $idx_name_ur = unreserve($idx_name);
327 "CREATE INDEX $idx_name_ur ON $table_name_ur (".
328 join( ', ', map unreserve($_), $index->fields ) . ");";
331 my $create_statement = "";
332 $create_statement .= qq[CREATE TABLE $table_name_ur (\n].
334 map { " $_" } @field_defs, @constraint_defs
339 $output .= join( "\n\n",
347 $output .= join ("\n", '', @foreign_constraints) if @foreign_constraints;
349 # create view/procedure are NOT prepended to the input $sql, needs
350 # to be filled in with the proper syntax
354 # Text of view is already a 'create view' statement so no need to
356 foreach ( $schema->get_views ) {
357 my $name = $_->name();
359 $output .= "--\n-- View: $name\n--\n\n" unless $no_comments;
360 my $text = $_->sql();
362 $output .= "$text\nGO\n";
365 # Text of procedure already has the 'create procedure' stuff
366 # so there is no need to do anything fancy. However, we should
367 # think about doing fancy stuff with granting permissions and
369 foreach ( $schema->get_procedures ) {
370 my $name = $_->name();
372 $output .= "--\n-- Procedure: $name\n--\n\n" unless $no_comments;
373 my $text = $_->sql();
375 $output .= "$text\nGO\n";
383 my ($name, $scope, $critical) = @_;
385 $scope ||= \%global_names;
386 if ( my $prev = $scope->{ $name } ) {
387 my $name_orig = $name;
388 $name .= sprintf( "%02d", ++$prev );
389 substr($name, $max_id_length - 3) = "00"
390 if length( $name ) > $max_id_length;
392 warn "The name '$name_orig' has been changed to ",
393 "'$name' to make it unique.\n" if $WARN;
395 $scope->{ $name_orig }++;
397 $name = substr( $name, 0, $max_id_length )
398 if ((length( $name ) > $max_id_length) && $critical);
400 return unreserve($name);
403 sub unreserve { $util->quote($_[0]) }
415 Mark Addison E<lt>grommit@users.sourceforge.netE<gt> - Bulk of code from
416 Sybase producer, I just tweaked it for SQLServer. Thanks.