1 package SQL::Translator::Producer::Oracle;
3 # -------------------------------------------------------------------
4 # $Id: Oracle.pm,v 1.11 2003-06-09 01:58:23 kycl4rk Exp $
5 # -------------------------------------------------------------------
6 # Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
7 # darren chamberlain <darren@cpan.org>,
8 # Chris Mungall <cjm@fruitfly.org>
10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
12 # published by the Free Software Foundation; version 2.
14 # This program is distributed in the hope that it will be useful, but
15 # WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 # General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write to the Free Software
21 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
23 # -------------------------------------------------------------------
26 use vars qw[ $VERSION $DEBUG $WARN ];
27 $VERSION = sprintf "%d.%02d", q$Revision: 1.11 $ =~ /(\d+)\.(\d+)/;
28 $DEBUG = 0 unless defined $DEBUG;
30 use SQL::Translator::Schema::Constants;
31 use SQL::Translator::Utils qw(header_comment);
42 mediumint => 'number',
46 varchar => 'varchar2',
67 'double precision' => 'number',
69 bigserial => 'number',
72 'character varying' => 'varchar2',
85 macaddr => 'varchar2',
87 'bit varying' => 'number',
91 # Oracle reserved words from:
92 # http://technet.oracle.com/docs/products/oracle8i/doc_library/\
93 # 817_doc/server.817/a85397/ap_keywd.htm
95 my %ora_reserved = map { $_, 1 } qw(
96 ACCESS ADD ALL ALTER AND ANY AS ASC AUDIT
98 CHAR CHECK CLUSTER COLUMN COMMENT COMPRESS CONNECT CREATE CURRENT
99 DATE DECIMAL DEFAULT DELETE DESC DISTINCT DROP
100 ELSE EXCLUSIVE EXISTS
104 IDENTIFIED IMMEDIATE IN INCREMENT INDEX INITIAL INSERT
105 INTEGER INTERSECT INTO IS
107 MAXEXTENTS MINUS MLSLABEL MODE MODIFY
108 NOAUDIT NOCOMPRESS NOT NOWAIT NULL NUMBER
109 OF OFFLINE ON ONLINE OPTION OR ORDER
110 PCTFREE PRIOR PRIVILEGES PUBLIC
111 RAW RENAME RESOURCE REVOKE ROW ROWID ROWNUM ROWS
112 SELECT SESSION SET SHARE SIZE SMALLINT START
113 SUCCESSFUL SYNONYM SYSDATE
114 TABLE THEN TO TRIGGER
115 UID UNION UNIQUE UPDATE USER
116 VALIDATE VALUES VARCHAR VARCHAR2 VIEW
120 my $max_id_length = 30;
121 my %used_identifiers = ();
126 # -------------------------------------------------------------------
128 my ( $translator, $data ) = @_;
129 $DEBUG = $translator->debug;
130 $WARN = $translator->show_warnings;
131 my $no_comments = $translator->no_comments;
132 my $add_drop_table = $translator->add_drop_table;
133 my $schema = $translator->schema;
136 $output .= header_comment unless ($no_comments);
138 if ( $translator->parser_type =~ /mysql/i ) {
140 "-- We assume that default NLS_DATE_FORMAT has been changed\n".
141 "-- but we set it here anyway to be self-consistent.\n".
142 "ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS';\n\n";
146 # Print create for each table
148 for my $table ( $schema->get_tables ) {
149 my $table_name = $table->name or next;
150 warn "table name = '$table_name'\n";
151 $table_name = mk_name( $table_name, '', undef, 1 );
152 my $table_name_ur = unreserve($table_name) or next;
154 my ( @comments, @field_defs, @trigger_defs, @constraint_defs );
156 push @comments, "--\n-- Table: $table_name_ur\n--" unless $no_comments;
158 my %field_name_scope;
159 for my $field ( $table->get_fields ) {
163 my $field_name = mk_name(
164 $field->name, '', \%field_name_scope, 1
166 my $field_name_ur = unreserve( $field_name, $table_name );
167 my $field_def = $field_name_ur;
173 my $data_type = lc $field->data_type;
174 my @size = $field->size;
175 my %extra = $field->extra;
176 my $list = $extra{'list'} || [];
177 my $commalist = join ",", @$list;
179 if ( $data_type eq 'enum' ) {
180 $check = "CHECK ($field_name IN ($commalist))";
181 $data_type = 'varchar2';
183 elsif ( $data_type eq 'set' ) {
184 # XXX add a CHECK constraint maybe
185 # (trickier and slower, than enum :)
186 $data_type = 'varchar2';
189 $data_type = defined $translate{ $data_type } ?
190 $translate{ $data_type } :
191 die "Unknown datatype: $data_type\n";
194 $field_def .= " $data_type";
195 if ( defined $size[0] && $size[0] > 0 ) {
196 $field_def .= '(' . join( ', ', @size ) . ')';
202 my $default = $field->default_value;
203 if ( defined $default ) {
204 $field_def .= sprintf(
206 $default =~ m/null/i ? 'NULL' : "'$default'"
211 # Not null constraint
213 unless ( $field->is_nullable ) {
214 my $constraint_name = mk_name($field_name_ur, 'nn');
215 $field_def .= ' CONSTRAINT ' . $constraint_name . ' NOT NULL';
218 $field_def .= " $check" if $check;
223 if ( $field->is_auto_increment ) {
224 my $base_name = $table_name . "_". $field_name;
225 my $seq_name = mk_name( $base_name, 'sq' );
226 my $trigger_name = mk_name( $base_name, 'ai' );
229 "CREATE SEQUENCE $seq_name;\n" .
230 "CREATE OR REPLACE TRIGGER $trigger_name\n" .
231 "BEFORE INSERT ON $table_name\n" .
232 "FOR EACH ROW WHEN (\n" .
233 " new.$field_name_ur IS NULL".
234 " OR new.$field_name_ur = 0\n".
237 " SELECT $seq_name.nextval\n" .
238 " INTO :new." . $field->name."\n" .
244 if ( lc $field->data_type eq 'timestamp' ) {
245 my $base_name = $table_name . "_". $field_name_ur;
246 my $trig_name = mk_name( $base_name, 'ts' );
248 "CREATE OR REPLACE TRIGGER $trig_name\n".
249 "BEFORE INSERT OR UPDATE ON $table_name_ur\n".
250 "FOR EACH ROW WHEN (new.$field_name_ur} IS NULL)\n".
252 " SELECT sysdate INTO :new.$field_name_ur} FROM dual;\n".
256 push @field_defs, $field_def;
262 my $constraint_name_default;
263 for my $c ( $table->get_constraints ) {
264 my $name = $c->name || '';
265 my @fields = map { unreserve( $_, $table_name ) } $c->fields;
266 my @rfields = map { unreserve( $_, $table_name ) }
267 $c->reference_fields;
270 if ( $c->type eq PRIMARY_KEY ) {
271 $name ||= mk_name( $table_name, 'pk' );
272 push @constraint_defs, "CONSTRAINT $name PRIMARY KEY ".
273 '(' . join( ', ', @fields ) . ')';
275 elsif ( $c->type eq UNIQUE ) {
276 $name ||= mk_name( $table_name, ++$constraint_name_default );
277 push @constraint_defs, "CONSTRAINT $name UNIQUE " .
278 '(' . join( ', ', @fields ) . ')';
280 elsif ( $c->type eq FOREIGN_KEY ) {
281 $name ||= mk_name( $table_name, ++$constraint_name_default );
282 my $def = "CONSTRAINT $name FOREIGN KEY REFERENCES ".
286 $def .= ' (' . join( ', ', @rfields ) . ')';
289 if ( $c->match_type ) {
291 ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL';
294 if ( $c->on_delete ) {
295 $def .= ' ON DELETE '.join( ' ', $c->on_delete );
298 if ( $c->on_update ) {
299 $def .= ' ON UPDATE '.join( ' ', $c->on_update );
302 push @constraint_defs, $def;
310 my $idx_name_default;
311 for my $index ( $table->get_indices ) {
312 my $index_name = $index->name || '';
313 my $index_type = $index->type || NORMAL;
314 my @fields = map { unreserve( $_, $table_name ) }
318 if ( $index_type eq PRIMARY_KEY ) {
319 $index_name = mk_name( $table_name, 'pk' );
320 push @field_defs, 'CONSTRAINT '.$index_name.' PRIMARY KEY '.
321 '(' . join( ', ', @fields ) . ')';
323 elsif ( $index_type eq UNIQUE ) {
324 $index_name = mk_name(
325 $table_name, $index_name || ++$idx_name_default
327 push @field_defs, 'CONSTRAINT ' . $index_name . ' UNIQUE ' .
328 '(' . join( ', ', @fields ) . ')';
331 elsif ( $index_type eq NORMAL ) {
332 $index_name = mk_name(
333 $table_name, $index_name || ++$idx_name_default
336 "CREATE INDEX $index_name on $table_name_ur (".
337 join( ', ', @fields ).
341 warn "Unknown index type ($index_type) on table $table_name.\n"
346 my $create_statement;
347 $create_statement = "DROP TABLE $table_name_ur;\n" if $add_drop_table;
349 join( ",\n", map { "-- $_" } $table->comments ) .
350 "CREATE TABLE $table_name_ur (\n" .
351 join( ",\n", map { " $_" } @field_defs, @constraint_defs ) .
355 $output .= join( "\n\n",
366 warn "Truncated " . keys( %truncated ) . " names:\n";
367 warn "\t" . join( "\n\t", sort keys %truncated ) . "\n";
371 warn "Encounted " . keys( %unreserve ) .
372 " unsafe names in schema (reserved or invalid):\n";
373 warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n";
380 # -------------------------------------------------------------------
382 my $basename = shift || '';
383 my $type = shift || '';
384 my $scope = shift || '';
385 my $critical = shift || '';
386 my $basename_orig = $basename;
388 ? $max_id_length - (length($type) + 1)
390 $basename = substr( $basename, 0, $max_name )
391 if length( $basename ) > $max_name;
392 my $name = $type ? "${type}_$basename" : $basename;
394 if ( $basename ne $basename_orig and $critical ) {
395 my $show_type = $type ? "+'$type'" : "";
396 warn "Truncating '$basename_orig'$show_type to $max_id_length ",
397 "character limit to make '$name'\n" if $WARN;
398 $truncated{ $basename_orig } = $name;
401 $scope ||= \%global_names;
402 if ( my $prev = $scope->{ $name } ) {
403 my $name_orig = $name;
404 $name .= sprintf( "%02d", ++$prev );
405 substr($name, $max_id_length - 3) = "00"
406 if length( $name ) > $max_id_length;
408 warn "The name '$name_orig' has been changed to ",
409 "'$name' to make it unique.\n" if $WARN;
411 $scope->{ $name_orig }++;
418 # -------------------------------------------------------------------
420 my $name = shift || '';
421 my $schema_obj_name = shift || '';
423 my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : '';
425 # also trap fields that don't begin with a letter
426 return $name if !$ora_reserved{ uc $name } && $name =~ /^[a-z]/i;
428 if ( $schema_obj_name ) {
429 ++$unreserve{"$schema_obj_name.$name"};
432 ++$unreserve{"$name (table name)"};
435 my $unreserve = sprintf '%s_', $name;
436 return $unreserve.$suffix;
441 # -------------------------------------------------------------------
442 # All bad art is the result of good intentions.
444 # -------------------------------------------------------------------
448 SQL::Translator::Producer::Oracle - Oracle SQL producer
452 use SQL::Translator::Parser::MySQL;
453 use SQL::Translator::Producer::Oracle;
455 my $original_create = ""; # get this from somewhere...
456 my $translator = SQL::Translator->new;
458 $translator->parser("SQL::Translator::Parser::MySQL");
459 $translator->producer("SQL::Translator::Producer::Oracle");
461 my $new_create = $translator->translate($original_create);
465 SQL::Translator::Producer::Oracle takes a parsed data structure,
466 created by a SQL::Translator::Parser subclass, and turns it into a
467 create string suitable for use with an Oracle database.
471 A hearty "thank-you" to Tim Bunce for much of the logic stolen from
472 his "mysql2ora" script.
476 Ken Y. Clark E<lt>kclark@cpan.orgE<gt>