1 package SQL::Translator::Producer::Oracle;
3 # -------------------------------------------------------------------
4 # $Id: Oracle.pm,v 1.18 2003-08-17 01:11:54 rossta 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: 1.18 $ =~ /(\d+)\.(\d+)/;
28 $DEBUG = 0 unless defined $DEBUG;
30 use SQL::Translator::Schema::Constants;
31 use SQL::Translator::Utils qw(header_comment);
43 mediumint => 'number',
47 varchar => 'varchar2',
68 'double precision' => 'number',
70 bigserial => 'number',
73 'character varying' => 'varchar2',
86 macaddr => 'varchar2',
88 'bit varying' => 'number',
92 # Oracle reserved words from:
93 # http://technet.oracle.com/docs/products/oracle8i/doc_library/\
94 # 817_doc/server.817/a85397/ap_keywd.htm
96 my %ora_reserved = map { $_, 1 } qw(
97 ACCESS ADD ALL ALTER AND ANY AS ASC AUDIT
99 CHAR CHECK CLUSTER COLUMN COMMENT COMPRESS CONNECT CREATE CURRENT
100 DATE DECIMAL DEFAULT DELETE DESC DISTINCT DROP
101 ELSE EXCLUSIVE EXISTS
105 IDENTIFIED IMMEDIATE IN INCREMENT INDEX INITIAL INSERT
106 INTEGER INTERSECT INTO IS
108 MAXEXTENTS MINUS MLSLABEL MODE MODIFY
109 NOAUDIT NOCOMPRESS NOT NOWAIT NULL NUMBER
110 OF OFFLINE ON ONLINE OPTION OR ORDER
111 PCTFREE PRIOR PRIVILEGES PUBLIC
112 RAW RENAME RESOURCE REVOKE ROW ROWID ROWNUM ROWS
113 SELECT SESSION SET SHARE SIZE SMALLINT START
114 SUCCESSFUL SYNONYM SYSDATE
115 TABLE THEN TO TRIGGER
116 UID UNION UNIQUE UPDATE USER
117 VALIDATE VALUES VARCHAR VARCHAR2 VIEW
121 my $max_id_length = 30;
122 my %used_identifiers = ();
127 # -------------------------------------------------------------------
129 my $translator = shift;
130 $DEBUG = $translator->debug;
131 $WARN = $translator->show_warnings;
132 my $no_comments = $translator->no_comments;
133 my $add_drop_table = $translator->add_drop_table;
134 my $schema = $translator->schema;
137 $output .= header_comment unless ($no_comments);
139 if ( $translator->parser_type =~ /mysql/i ) {
141 "-- We assume that default NLS_DATE_FORMAT has been changed\n".
142 "-- but we set it here anyway to be self-consistent.\n".
143 "ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS';\n\n";
147 # Print create for each table
149 for my $table ( $schema->get_tables ) {
150 my $table_name = $table->name or next;
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, @field_comments );
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 # \todo deal with embedded quotes
178 my $commalist = "'" . (join "', '", @$list) . "'";
180 if ( $data_type eq 'enum' ) {
181 $check = "CHECK ($field_name IN ($commalist))";
182 $data_type = 'varchar2';
184 elsif ( $data_type eq 'set' ) {
185 # XXX add a CHECK constraint maybe
186 # (trickier and slower, than enum :)
187 $data_type = 'varchar2';
190 $data_type = defined $translate{ $data_type } ?
191 $translate{ $data_type } :
192 die "Unknown datatype: $data_type\n";
195 $field_def .= " $data_type";
196 if ( defined $size[0] && $size[0] > 0 ) {
197 $field_def .= '(' . join( ', ', @size ) . ')';
203 my $default = $field->default_value;
204 if ( defined $default ) {
205 $field_def .= sprintf(
207 $default =~ m/null/i ? 'NULL' : "'$default'"
212 # Not null constraint
214 unless ( $field->is_nullable ) {
215 my $constraint_name = mk_name($field_name_ur, 'nn');
216 $field_def .= ' CONSTRAINT ' . $constraint_name . ' NOT NULL';
219 $field_def .= " $check" if $check;
224 if ( $field->is_auto_increment ) {
225 my $base_name = $table_name . "_". $field_name;
226 my $seq_name = mk_name( $base_name, 'sq' );
227 my $trigger_name = mk_name( $base_name, 'ai' );
230 "CREATE SEQUENCE $seq_name;\n" .
231 "CREATE OR REPLACE TRIGGER $trigger_name\n" .
232 "BEFORE INSERT ON $table_name\n" .
233 "FOR EACH ROW WHEN (\n" .
234 " new.$field_name_ur IS NULL".
235 " OR new.$field_name_ur = 0\n".
238 " SELECT $seq_name.nextval\n" .
239 " INTO :new." . $field->name."\n" .
245 if ( lc $field->data_type eq 'timestamp' ) {
246 my $base_name = $table_name . "_". $field_name_ur;
247 my $trig_name = mk_name( $base_name, 'ts' );
249 "CREATE OR REPLACE TRIGGER $trig_name\n".
250 "BEFORE INSERT OR UPDATE ON $table_name_ur\n".
251 "FOR EACH ROW WHEN (new.$field_name_ur IS NULL)\n".
253 " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n".
257 push @field_defs, $field_def;
259 if ( my $comment = $field->comments ) {
260 push @field_comments,
261 "COMMENT ON COLUMN $table_name.$field_name_ur is\n '".
269 my $constraint_name_default;
270 for my $c ( $table->get_constraints ) {
271 my $name = $c->name || '';
272 my @fields = map { unreserve( $_, $table_name ) } $c->fields;
273 my @rfields = map { unreserve( $_, $table_name ) }
274 $c->reference_fields;
277 if ( $c->type eq PRIMARY_KEY ) {
278 $name ||= mk_name( $table_name, 'pk' );
279 push @constraint_defs, "CONSTRAINT $name PRIMARY KEY ".
280 '(' . join( ', ', @fields ) . ')';
282 elsif ( $c->type eq UNIQUE ) {
283 $name ||= mk_name( $table_name, ++$constraint_name_default );
284 push @constraint_defs, "CONSTRAINT $name UNIQUE " .
285 '(' . join( ', ', @fields ) . ')';
287 elsif ( $c->type eq FOREIGN_KEY ) {
288 $name ||= mk_name( $table_name, ++$constraint_name_default );
289 my $def = "CONSTRAINT $name FOREIGN KEY ";
292 $def .= join( ', ', @fields );
295 $def .= ' REFERENCES ' . $c->reference_table;
298 $def .= ' (' . join( ', ', @rfields ) . ')';
301 if ( $c->match_type ) {
303 ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL';
306 if ( $c->on_delete ) {
307 $def .= ' ON DELETE '.join( ' ', $c->on_delete );
310 if ( $c->on_update ) {
311 $def .= ' ON UPDATE '.join( ' ', $c->on_update );
314 push @constraint_defs, $def;
322 my $idx_name_default;
323 for my $index ( $table->get_indices ) {
324 my $index_name = $index->name || '';
325 my $index_type = $index->type || NORMAL;
326 my @fields = map { unreserve( $_, $table_name ) }
330 if ( $index_type eq PRIMARY_KEY ) {
331 $index_name = mk_name( $table_name, 'pk' );
332 push @field_defs, 'CONSTRAINT '.$index_name.' PRIMARY KEY '.
333 '(' . join( ', ', @fields ) . ')';
335 elsif ( $index_type eq UNIQUE ) {
336 $index_name = mk_name(
337 $table_name, $index_name || ++$idx_name_default
339 push @field_defs, 'CONSTRAINT ' . $index_name . ' UNIQUE ' .
340 '(' . join( ', ', @fields ) . ')';
343 elsif ( $index_type eq NORMAL ) {
344 $index_name = mk_name(
345 $table_name, $index_name || ++$idx_name_default
348 "CREATE INDEX $index_name on $table_name_ur (".
349 join( ', ', @fields ).
353 warn "Unknown index type ($index_type) on table $table_name.\n"
358 my $create_statement;
359 $create_statement = "DROP TABLE $table_name_ur;\n" if $add_drop_table;
361 join( ",\n", map { "-- $_" } $table->comments ) .
362 "CREATE TABLE $table_name_ur (\n" .
363 join( ",\n", map { " $_" } @field_defs, @constraint_defs ) .
367 $output .= join( "\n\n",
379 warn "Truncated " . keys( %truncated ) . " names:\n";
380 warn "\t" . join( "\n\t", sort keys %truncated ) . "\n";
384 warn "Encounted " . keys( %unreserve ) .
385 " unsafe names in schema (reserved or invalid):\n";
386 warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n";
393 # -------------------------------------------------------------------
395 my $basename = shift || '';
396 my $type = shift || '';
397 my $scope = shift || '';
398 my $critical = shift || '';
399 my $basename_orig = $basename;
401 ? $max_id_length - (length($type) + 1)
403 $basename = substr( $basename, 0, $max_name )
404 if length( $basename ) > $max_name;
405 my $name = $type ? "${type}_$basename" : $basename;
407 if ( $basename ne $basename_orig and $critical ) {
408 my $show_type = $type ? "+'$type'" : "";
409 warn "Truncating '$basename_orig'$show_type to $max_id_length ",
410 "character limit to make '$name'\n" if $WARN;
411 $truncated{ $basename_orig } = $name;
414 $scope ||= \%global_names;
415 if ( my $prev = $scope->{ $name } ) {
416 my $name_orig = $name;
417 $name .= sprintf( "%02d", ++$prev );
418 substr($name, $max_id_length - 3) = "00"
419 if length( $name ) > $max_id_length;
421 warn "The name '$name_orig' has been changed to ",
422 "'$name' to make it unique.\n" if $WARN;
424 $scope->{ $name_orig }++;
431 # -------------------------------------------------------------------
433 my $name = shift || '';
434 my $schema_obj_name = shift || '';
436 my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : '';
438 # also trap fields that don't begin with a letter
439 return $name if !$ora_reserved{ uc $name } && $name =~ /^[a-z]/i;
441 if ( $schema_obj_name ) {
442 ++$unreserve{"$schema_obj_name.$name"};
445 ++$unreserve{"$name (table name)"};
448 my $unreserve = sprintf '%s_', $name;
449 return $unreserve.$suffix;
454 # -------------------------------------------------------------------
455 # All bad art is the result of good intentions.
457 # -------------------------------------------------------------------
461 SQL::Translator::Producer::Oracle - Oracle SQL producer
465 use SQL::Translator::Parser::MySQL;
466 use SQL::Translator::Producer::Oracle;
468 my $original_create = ""; # get this from somewhere...
469 my $translator = SQL::Translator->new;
471 $translator->parser("SQL::Translator::Parser::MySQL");
472 $translator->producer("SQL::Translator::Producer::Oracle");
474 my $new_create = $translator->translate($original_create);
478 SQL::Translator::Producer::Oracle takes a parsed data structure,
479 created by a SQL::Translator::Parser subclass, and turns it into a
480 create string suitable for use with an Oracle database.
484 A hearty "thank-you" to Tim Bunce for much of the logic stolen from
485 his "mysql2ora" script.
489 Ken Y. Clark E<lt>kclark@cpan.orgE<gt>