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1 | package SQL::Translator::Producer::Oracle; |
2 | |
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3 | # ------------------------------------------------------------------- |
54e61f1f |
4 | # $Id: Oracle.pm,v 1.34 2005-08-10 16:33:39 duality72 Exp $ |
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5 | # ------------------------------------------------------------------- |
977651a5 |
6 | # Copyright (C) 2002-4 SQLFairy Authors |
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7 | # |
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8 | # This program is free software; you can redistribute it and/or |
9 | # modify it under the terms of the GNU General Public License as |
10 | # published by the Free Software Foundation; version 2. |
11 | # |
12 | # This program is distributed in the hope that it will be useful, but |
13 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | # General Public License for more details. |
16 | # |
17 | # You should have received a copy of the GNU General Public License |
18 | # along with this program; if not, write to the Free Software |
19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
20 | # 02111-1307 USA |
21 | # ------------------------------------------------------------------- |
22 | |
ba096dc4 |
23 | =head1 NAME |
24 | |
25 | SQL::Translator::Producer::Oracle - Oracle SQL producer |
26 | |
27 | =head1 SYNOPSIS |
28 | |
29 | use SQL::Translator; |
30 | |
31 | my $t = SQL::Translator->new( parser => '...', producer => 'Oracle' ); |
32 | print $translator->translate( $file ); |
33 | |
34 | =head1 DESCRIPTION |
35 | |
36 | Creates an SQL DDL suitable for Oracle. |
37 | |
662258cd |
38 | =head1 producer_args |
39 | |
40 | =over |
41 | |
42 | =item delay_constraints |
43 | |
44 | This option remove the primary key and other key constraints from the |
45 | CREATE TABLE statement and adds ALTER TABLEs at the end with it. |
46 | |
47 | =back |
48 | |
ba096dc4 |
49 | =cut |
50 | |
16dc9970 |
51 | use strict; |
96844cae |
52 | use vars qw[ $VERSION $DEBUG $WARN ]; |
54e61f1f |
53 | $VERSION = sprintf "%d.%02d", q$Revision: 1.34 $ =~ /(\d+)\.(\d+)/; |
d529894e |
54 | $DEBUG = 0 unless defined $DEBUG; |
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55 | |
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56 | use SQL::Translator::Schema::Constants; |
5ee19df8 |
57 | use SQL::Translator::Utils qw(header_comment); |
58 | |
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59 | my %translate = ( |
d529894e |
60 | # |
61 | # MySQL types |
62 | # |
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63 | bigint => 'number', |
64 | double => 'number', |
65 | decimal => 'number', |
66 | float => 'number', |
67 | int => 'number', |
25966689 |
68 | integer => 'number', |
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69 | mediumint => 'number', |
70 | smallint => 'number', |
71 | tinyint => 'number', |
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72 | char => 'char', |
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73 | varchar => 'varchar2', |
1f58ba76 |
74 | tinyblob => 'blob', |
75 | blob => 'blob', |
76 | mediumblob => 'blob', |
77 | longblob => 'blob', |
9fc9bfb1 |
78 | tinytext => 'varchar2', |
79 | text => 'clob', |
1f58ba76 |
80 | longtext => 'clob', |
81 | mediumtext => 'clob', |
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82 | enum => 'varchar2', |
83 | set => 'varchar2', |
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84 | date => 'date', |
85 | datetime => 'date', |
86 | time => 'date', |
87 | timestamp => 'date', |
88 | year => 'date', |
d529894e |
89 | |
90 | # |
91 | # PostgreSQL types |
92 | # |
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93 | numeric => 'number', |
94 | 'double precision' => 'number', |
95 | serial => 'number', |
96 | bigserial => 'number', |
97 | money => 'number', |
98 | character => 'char', |
99 | 'character varying' => 'varchar2', |
100 | bytea => 'BLOB', |
101 | interval => 'number', |
102 | boolean => 'number', |
103 | point => 'number', |
104 | line => 'number', |
105 | lseg => 'number', |
106 | box => 'number', |
107 | path => 'number', |
108 | polygon => 'number', |
109 | circle => 'number', |
110 | cidr => 'number', |
111 | inet => 'varchar2', |
112 | macaddr => 'varchar2', |
113 | bit => 'number', |
114 | 'bit varying' => 'number', |
ab8802d7 |
115 | |
116 | # |
117 | # Oracle types |
118 | # |
119 | number => 'number', |
120 | varchar2 => 'varchar2', |
121 | long => 'clob', |
d529894e |
122 | ); |
123 | |
124 | # |
125 | # Oracle reserved words from: |
126 | # http://technet.oracle.com/docs/products/oracle8i/doc_library/\ |
127 | # 817_doc/server.817/a85397/ap_keywd.htm |
128 | # |
96844cae |
129 | my %ora_reserved = map { $_, 1 } qw( |
d529894e |
130 | ACCESS ADD ALL ALTER AND ANY AS ASC AUDIT |
131 | BETWEEN BY |
132 | CHAR CHECK CLUSTER COLUMN COMMENT COMPRESS CONNECT CREATE CURRENT |
133 | DATE DECIMAL DEFAULT DELETE DESC DISTINCT DROP |
134 | ELSE EXCLUSIVE EXISTS |
135 | FILE FLOAT FOR FROM |
136 | GRANT GROUP |
137 | HAVING |
138 | IDENTIFIED IMMEDIATE IN INCREMENT INDEX INITIAL INSERT |
139 | INTEGER INTERSECT INTO IS |
140 | LEVEL LIKE LOCK LONG |
141 | MAXEXTENTS MINUS MLSLABEL MODE MODIFY |
142 | NOAUDIT NOCOMPRESS NOT NOWAIT NULL NUMBER |
143 | OF OFFLINE ON ONLINE OPTION OR ORDER |
144 | PCTFREE PRIOR PRIVILEGES PUBLIC |
145 | RAW RENAME RESOURCE REVOKE ROW ROWID ROWNUM ROWS |
146 | SELECT SESSION SET SHARE SIZE SMALLINT START |
147 | SUCCESSFUL SYNONYM SYSDATE |
148 | TABLE THEN TO TRIGGER |
149 | UID UNION UNIQUE UPDATE USER |
150 | VALIDATE VALUES VARCHAR VARCHAR2 VIEW |
151 | WHENEVER WHERE WITH |
16dc9970 |
152 | ); |
153 | |
96844cae |
154 | my $max_id_length = 30; |
155 | my %used_identifiers = (); |
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156 | my %global_names; |
157 | my %unreserve; |
158 | my %truncated; |
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159 | |
96844cae |
160 | # ------------------------------------------------------------------- |
077ebf34 |
161 | sub produce { |
a1d94525 |
162 | my $translator = shift; |
163 | $DEBUG = $translator->debug; |
e56dabb7 |
164 | $WARN = $translator->show_warnings || 0; |
a1d94525 |
165 | my $no_comments = $translator->no_comments; |
166 | my $add_drop_table = $translator->add_drop_table; |
167 | my $schema = $translator->schema; |
65ffb46c |
168 | my $delay_constraints = $translator->producer_args->{delay_constraints}; |
169 | my ($output, $create, @table_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs); |
44fcd0b5 |
170 | |
e56dabb7 |
171 | $create .= header_comment unless ($no_comments); |
077ebf34 |
172 | |
d529894e |
173 | if ( $translator->parser_type =~ /mysql/i ) { |
e56dabb7 |
174 | $create .= |
ba3cb849 |
175 | "-- We assume that default NLS_DATE_FORMAT has been changed\n". |
176 | "-- but we set it here anyway to be self-consistent.\n" |
177 | unless $no_comments; |
178 | |
e56dabb7 |
179 | $create .= |
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180 | "ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS';\n\n"; |
181 | } |
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182 | |
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183 | for my $table ( $schema->get_tables ) { |
65ffb46c |
184 | my ( $table_def, $fk_def, $trigger_def, $index_def, $constraint_def) = create_table( |
e56dabb7 |
185 | $table, |
186 | { |
187 | add_drop_table => $add_drop_table, |
188 | show_warnings => $WARN, |
189 | no_comments => $no_comments, |
65ffb46c |
190 | delay_constraints => $delay_constraints |
e56dabb7 |
191 | } |
192 | ); |
193 | push @table_defs, @$table_def; |
194 | push @fk_defs, @$fk_def; |
195 | push @trigger_defs, @$trigger_def; |
041e659f |
196 | push @index_defs, @$index_def; |
65ffb46c |
197 | push @constraint_defs, @$constraint_def; |
e56dabb7 |
198 | } |
199 | |
200 | my (@view_defs); |
201 | foreach my $view ( $schema->get_views ) { |
202 | push @view_defs, create_view($view); |
203 | } |
204 | |
65ffb46c |
205 | return wantarray ? (defined $create ? $create : (), @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs) : $create . join ("\n\n", @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs, ''); |
e56dabb7 |
206 | } |
207 | |
208 | sub create_table { |
209 | my ($table, $options) = @_; |
210 | my $table_name = $table->name; |
211 | |
212 | my $item = ''; |
213 | my $drop; |
214 | my (@create, @field_defs, @constraint_defs, @fk_defs, @trigger_defs); |
16dc9970 |
215 | |
e56dabb7 |
216 | push @create, "--\n-- Table: $table_name\n--" unless $options->{no_comments}; |
217 | push @create, qq[DROP TABLE $table_name CASCADE CONSTRAINTS;] if $options->{add_drop_table}; |
16dc9970 |
218 | |
e56dabb7 |
219 | my $table_name_ur = unreserve($table_name) or next; |
16dc9970 |
220 | |
f6195129 |
221 | my ( %field_name_scope, @field_comments ); |
57f77285 |
222 | for my $field ( $table->get_fields ) { |
017ac5a7 |
223 | my ($field_create, $field_defs, $trigger_defs, $field_comments) = |
224 | create_field($field, $options, \%field_name_scope); |
225 | push @create, @$field_create if ref $field_create; |
226 | push @field_defs, @$field_defs if ref $field_defs; |
227 | push @trigger_defs, @$trigger_defs if ref $trigger_defs; |
228 | push @field_comments, @$field_comments if ref $field_comments; |
57f77285 |
229 | } |
230 | |
231 | # |
02c2af3b |
232 | # Table options |
233 | # |
234 | my @table_options; |
235 | for my $opt ( $table->options ) { |
236 | if ( ref $opt eq 'HASH' ) { |
237 | my ( $key, $value ) = each %$opt; |
238 | if ( ref $value eq 'ARRAY' ) { |
239 | push @table_options, "$key\n(\n". join ("\n", |
240 | map { " $_->[0]\t$_->[1]" } |
241 | map { [ each %$_ ] } |
242 | @$value |
243 | )."\n)"; |
244 | } |
245 | elsif ( !defined $value ) { |
246 | push @table_options, $key; |
247 | } |
248 | else { |
249 | push @table_options, "$key $value"; |
250 | } |
251 | } |
252 | } |
253 | |
254 | # |
57f77285 |
255 | # Table constraints |
256 | # |
57f77285 |
257 | for my $c ( $table->get_constraints ) { |
258 | my $name = $c->name || ''; |
259 | my @fields = map { unreserve( $_, $table_name ) } $c->fields; |
260 | my @rfields = map { unreserve( $_, $table_name ) } |
261 | $c->reference_fields; |
4dfb0380 |
262 | next if !@fields && $c->type ne CHECK_C; |
57f77285 |
263 | |
264 | if ( $c->type eq PRIMARY_KEY ) { |
d4977f1c |
265 | # create a name if delay_constraints |
266 | $name ||= mk_name( $table_name, 'pk' ) |
267 | if $options->{delay_constraints}; |
54e61f1f |
268 | push @constraint_defs, ($name ? "CONSTRAINT $name " : '') . |
269 | 'PRIMARY KEY (' . join( ', ', @fields ) . ')'; |
57f77285 |
270 | } |
271 | elsif ( $c->type eq UNIQUE ) { |
54e61f1f |
272 | # Don't create UNIQUE constraints identical to the primary key |
273 | if ( my $pk = $table->primary_key ) { |
274 | my $u_fields = join(":", @fields); |
275 | my $pk_fields = join(":", $pk->fields); |
276 | next if $u_fields eq $pk_fields; |
277 | } |
278 | |
279 | $name ||= mk_name( $name || $table_name, 'u' ); |
6d4ce9b6 |
280 | |
b0c196d4 |
281 | for my $f ( $c->fields ) { |
282 | my $field_def = $table->get_field( $f ) or next; |
283 | my $dtype = $translate{ $field_def->data_type } or next; |
284 | if ( $WARN && $dtype =~ /clob/i ) { |
285 | warn "Oracle will not allow UNIQUE constraints on " . |
286 | "CLOB field '" . $field_def->table->name . '.' . |
287 | $field_def->name . ".'\n" |
288 | } |
289 | } |
6d4ce9b6 |
290 | |
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291 | push @constraint_defs, "CONSTRAINT $name UNIQUE " . |
292 | '(' . join( ', ', @fields ) . ')'; |
293 | } |
4dfb0380 |
294 | elsif ( $c->type eq CHECK_C ) { |
54e61f1f |
295 | $name ||= mk_name( $name || $table_name, 'ck' ); |
4dfb0380 |
296 | my $expression = $c->expression || ''; |
297 | push @constraint_defs, "CONSTRAINT $name CHECK ($expression)"; |
298 | } |
57f77285 |
299 | elsif ( $c->type eq FOREIGN_KEY ) { |
e56dabb7 |
300 | $name = mk_name( join('_', $table_name, $c->fields). '_fk' ); |
cd617ba8 |
301 | my $def = "CONSTRAINT $name FOREIGN KEY "; |
302 | |
303 | if ( @fields ) { |
1c899510 |
304 | $def .= '(' . join( ', ', @fields ) . ')'; |
cd617ba8 |
305 | } |
306 | |
1c899510 |
307 | my $ref_table = unreserve($c->reference_table); |
308 | |
309 | $def .= " REFERENCES $ref_table"; |
57f77285 |
310 | |
311 | if ( @rfields ) { |
312 | $def .= ' (' . join( ', ', @rfields ) . ')'; |
313 | } |
314 | |
315 | if ( $c->match_type ) { |
316 | $def .= ' MATCH ' . |
317 | ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; |
318 | } |
319 | |
320 | if ( $c->on_delete ) { |
321 | $def .= ' ON DELETE '.join( ' ', $c->on_delete ); |
322 | } |
323 | |
e56dabb7 |
324 | # disabled by plu 2007-12-29 - doesn't exist for oracle |
325 | #if ( $c->on_update ) { |
326 | # $def .= ' ON UPDATE '.join( ' ', $c->on_update ); |
327 | #} |
57f77285 |
328 | |
e56dabb7 |
329 | push @fk_defs, sprintf("ALTER TABLE %s ADD %s;", $table, $def); |
57f77285 |
330 | } |
16dc9970 |
331 | } |
332 | |
333 | # |
334 | # Index Declarations |
335 | # |
57f77285 |
336 | my @index_defs = (); |
57f77285 |
337 | for my $index ( $table->get_indices ) { |
338 | my $index_name = $index->name || ''; |
339 | my $index_type = $index->type || NORMAL; |
44fcd0b5 |
340 | my @fields = map { unreserve( $_, $table_name ) } |
57f77285 |
341 | $index->fields; |
44fcd0b5 |
342 | next unless @fields; |
16dc9970 |
343 | |
bdd8e79a |
344 | my @index_options; |
345 | for my $opt ( $index->options ) { |
346 | if ( ref $opt eq 'HASH' ) { |
347 | my ( $key, $value ) = each %$opt; |
348 | if ( ref $value eq 'ARRAY' ) { |
349 | push @table_options, "$key\n(\n". join ("\n", |
350 | map { " $_->[0]\t$_->[1]" } |
351 | map { [ each %$_ ] } |
352 | @$value |
353 | )."\n)"; |
354 | } |
355 | elsif ( !defined $value ) { |
356 | push @index_options, $key; |
357 | } |
358 | else { |
359 | push @index_options, "$key $value"; |
360 | } |
361 | } |
362 | } |
363 | my $index_options = @index_options |
364 | ? "\n".join("\n", @index_options) : ''; |
365 | |
57f77285 |
366 | if ( $index_type eq PRIMARY_KEY ) { |
6d4ce9b6 |
367 | $index_name = $index_name ? mk_name( $index_name ) |
368 | : mk_name( $table_name, 'pk' ); |
57f77285 |
369 | push @field_defs, 'CONSTRAINT '.$index_name.' PRIMARY KEY '. |
16dc9970 |
370 | '(' . join( ', ', @fields ) . ')'; |
371 | } |
57f77285 |
372 | elsif ( $index_type eq NORMAL ) { |
6d4ce9b6 |
373 | $index_name = $index_name ? mk_name( $index_name ) |
374 | : mk_name( $table_name, $index_name || 'i' ); |
57f77285 |
375 | push @index_defs, |
da8e499e |
376 | "CREATE INDEX $index_name on $table_name_ur (". |
377 | join( ', ', @fields ). |
bdd8e79a |
378 | ")$index_options;"; |
16dc9970 |
379 | } |
041e659f |
380 | elsif ( $index_type eq UNIQUE ) { |
381 | $index_name = $index_name ? mk_name( $index_name ) |
382 | : mk_name( $table_name, $index_name || 'i' ); |
383 | push @index_defs, |
384 | "CREATE UNIQUE INDEX $index_name on $table_name_ur (". |
385 | join( ', ', @fields ). |
bdd8e79a |
386 | ")$index_options;"; |
041e659f |
387 | } |
16dc9970 |
388 | else { |
96844cae |
389 | warn "Unknown index type ($index_type) on table $table_name.\n" |
390 | if $WARN; |
16dc9970 |
391 | } |
392 | } |
393 | |
9fc9bfb1 |
394 | if ( my @table_comments = $table->comments ) { |
395 | for my $comment ( @table_comments ) { |
396 | next unless $comment; |
b89d5635 |
397 | $comment =~ s/'/''/g; |
398 | push @field_comments, "COMMENT ON TABLE $table_name_ur is\n '". |
e56dabb7 |
399 | $comment . "';" unless $options->{no_comments} |
9fc9bfb1 |
400 | ; |
401 | } |
402 | } |
403 | |
02c2af3b |
404 | my $table_options = @table_options |
405 | ? "\n".join("\n", @table_options) : ''; |
e56dabb7 |
406 | push @create, "CREATE TABLE $table_name_ur (\n" . |
65ffb46c |
407 | join( ",\n", map { " $_" } @field_defs, |
408 | ($options->{delay_constraints} ? () : @constraint_defs) ) . |
409 | "\n)$table_options;"; |
410 | |
943ae54e |
411 | @constraint_defs = map { 'ALTER TABLE '.$table_name_ur.' ADD '.$_.';' } |
65ffb46c |
412 | @constraint_defs; |
16dc9970 |
413 | |
96844cae |
414 | if ( $WARN ) { |
415 | if ( %truncated ) { |
416 | warn "Truncated " . keys( %truncated ) . " names:\n"; |
417 | warn "\t" . join( "\n\t", sort keys %truncated ) . "\n"; |
418 | } |
419 | |
420 | if ( %unreserve ) { |
421 | warn "Encounted " . keys( %unreserve ) . |
422 | " unsafe names in schema (reserved or invalid):\n"; |
423 | warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n"; |
424 | } |
425 | } |
426 | |
65ffb46c |
427 | return \@create, \@fk_defs, \@trigger_defs, \@index_defs, ($options->{delay_constraints} ? \@constraint_defs : []); |
e56dabb7 |
428 | } |
429 | |
017ac5a7 |
430 | sub alter_field { |
431 | my ($from_field, $to_field, $options) = @_; |
432 | |
433 | my ($field_create, $field_defs, $trigger_defs, $field_comments) = |
434 | create_field($to_field, $options, {}); |
435 | |
d888d445 |
436 | # Fix ORA-01442 |
437 | if ($to_field->is_nullable && !$from_field->is_nullable) { |
438 | die 'Cannot remove NOT NULL from table field'; |
439 | } elsif (!$from_field->is_nullable && !$to_field->is_nullable) { |
440 | @$field_defs = map { s/ NOT NULL//; $_} @$field_defs; |
441 | } |
442 | |
017ac5a7 |
443 | my $table_name = $to_field->table->name; |
444 | my $table_name_ur = unreserve( $table_name ); |
445 | |
446 | return 'ALTER TABLE '.$table_name_ur.' MODIFY ( '.join('', @$field_defs).' )'; |
447 | } |
448 | |
449 | sub create_field { |
450 | my ($field, $options, $field_name_scope) = @_; |
451 | |
452 | my (@create, @field_defs, @trigger_defs, @field_comments); |
453 | |
454 | my $table_name = $field->table->name; |
455 | my $table_name_ur = unreserve( $table_name ); |
456 | |
457 | # |
458 | # Field name |
459 | # |
460 | my $field_name = mk_name( |
461 | $field->name, '', $field_name_scope, 1 |
462 | ); |
463 | |
464 | my $field_name_ur = unreserve( $field_name, $table_name ); |
465 | my $field_def = $field_name_ur; |
466 | $field->name( $field_name_ur ); |
467 | |
468 | # |
469 | # Datatype |
470 | # |
471 | my $check; |
472 | my $data_type = lc $field->data_type; |
473 | my @size = $field->size; |
474 | my %extra = $field->extra; |
475 | my $list = $extra{'list'} || []; |
476 | # \todo deal with embedded quotes |
477 | my $commalist = join( ', ', map { qq['$_'] } @$list ); |
478 | |
479 | if ( $data_type eq 'enum' ) { |
480 | $check = "CHECK ($field_name_ur IN ($commalist))"; |
481 | $data_type = 'varchar2'; |
482 | } |
483 | elsif ( $data_type eq 'set' ) { |
484 | # XXX add a CHECK constraint maybe |
485 | # (trickier and slower, than enum :) |
486 | $data_type = 'varchar2'; |
487 | } |
488 | else { |
489 | $data_type = defined $translate{ $data_type } ? |
490 | $translate{ $data_type } : |
491 | $data_type; |
492 | $data_type ||= 'varchar2'; |
493 | } |
494 | |
495 | # |
496 | # Fixes ORA-02329: column of datatype LOB cannot be |
497 | # unique or a primary key |
498 | # |
499 | if ( $data_type eq 'clob' && $field->is_primary_key ) { |
500 | $data_type = 'varchar2'; |
501 | $size[0] = 4000; |
502 | warn "CLOB cannot be a primary key, changing to VARCHAR2\n" |
503 | if $WARN; |
504 | } |
505 | |
506 | if ( $data_type eq 'clob' && $field->is_unique ) { |
507 | $data_type = 'varchar2'; |
508 | $size[0] = 4000; |
509 | warn "CLOB cannot be a unique key, changing to VARCHAR2\n" |
510 | if $WARN; |
511 | } |
512 | |
513 | # |
514 | # Fixes ORA-00907: missing right parenthesis |
515 | # |
516 | if ( $data_type =~ /(date|clob)/i ) { |
517 | undef @size; |
518 | } |
519 | |
520 | $field_def .= " $data_type"; |
521 | if ( defined $size[0] && $size[0] > 0 ) { |
522 | $field_def .= '(' . join( ', ', @size ) . ')'; |
523 | } |
524 | |
525 | # |
526 | # Default value |
527 | # |
528 | my $default = $field->default_value; |
529 | if ( defined $default ) { |
530 | # |
531 | # Wherein we try to catch a string being used as |
532 | # a default value for a numerical field. If "true/false," |
533 | # then sub "1/0," otherwise just test the truthity of the |
534 | # argument and use that (naive?). |
535 | # |
536 | if ( |
537 | $data_type =~ /^number$/i && |
538 | $default !~ /^-?\d+$/ && |
539 | $default !~ m/null/i |
540 | ) { |
541 | if ( $default =~ /^true$/i ) { |
542 | $default = "'1'"; |
543 | } elsif ( $default =~ /^false$/i ) { |
544 | $default = "'0'"; |
545 | } else { |
546 | $default = $default ? "'1'" : "'0'"; |
547 | } |
548 | } elsif ( |
549 | $data_type =~ /date/ && ( |
550 | $default eq 'current_timestamp' |
551 | || |
552 | $default eq 'now()' |
553 | ) |
554 | ) { |
555 | $default = 'SYSDATE'; |
556 | } else { |
557 | $default = $default =~ m/null/i ? 'NULL' : "'$default'" |
558 | } |
559 | |
560 | $field_def .= " DEFAULT $default", |
561 | } |
562 | |
563 | # |
564 | # Not null constraint |
565 | # |
566 | unless ( $field->is_nullable ) { |
567 | $field_def .= ' NOT NULL'; |
568 | } |
569 | |
570 | $field_def .= " $check" if $check; |
571 | |
572 | # |
573 | # Auto_increment |
574 | # |
575 | if ( $field->is_auto_increment ) { |
576 | my $base_name = $table_name_ur . "_". $field_name; |
577 | my $seq_name = mk_name( $base_name, 'sq' ); |
578 | my $trigger_name = mk_name( $base_name, 'ai' ); |
579 | |
580 | push @create, qq[DROP SEQUENCE $seq_name;] if $options->{add_drop_table}; |
581 | push @create, "CREATE SEQUENCE $seq_name;"; |
582 | push @trigger_defs, |
583 | "CREATE OR REPLACE TRIGGER $trigger_name\n" . |
584 | "BEFORE INSERT ON $table_name_ur\n" . |
585 | "FOR EACH ROW WHEN (\n" . |
586 | " new.$field_name_ur IS NULL". |
587 | " OR new.$field_name_ur = 0\n". |
588 | ")\n". |
589 | "BEGIN\n" . |
590 | " SELECT $seq_name.nextval\n" . |
591 | " INTO :new." . $field->name."\n" . |
592 | " FROM dual;\n" . |
593 | "END;\n/"; |
594 | ; |
595 | } |
596 | |
597 | if ( lc $field->data_type eq 'timestamp' ) { |
598 | my $base_name = $table_name_ur . "_". $field_name_ur; |
599 | my $trig_name = mk_name( $base_name, 'ts' ); |
600 | push @trigger_defs, |
601 | "CREATE OR REPLACE TRIGGER $trig_name\n". |
602 | "BEFORE INSERT OR UPDATE ON $table_name_ur\n". |
603 | "FOR EACH ROW WHEN (new.$field_name_ur IS NULL)\n". |
604 | "BEGIN \n". |
605 | " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n". |
606 | "END;\n/"; |
607 | } |
608 | |
609 | push @field_defs, $field_def; |
610 | |
611 | if ( my $comment = $field->comments ) { |
612 | $comment =~ s/'/''/g; |
613 | push @field_comments, |
614 | "COMMENT ON COLUMN $table_name_ur.$field_name_ur is\n '" . |
615 | $comment . "';" unless $options->{no_comments}; |
616 | } |
617 | |
618 | return \@create, \@field_defs, \@trigger_defs, \@field_comments; |
619 | |
620 | } |
621 | |
622 | |
e56dabb7 |
623 | sub create_view { |
624 | my ($view) = @_; |
625 | |
626 | my $out = sprintf("CREATE VIEW %s AS\n%s;", |
627 | $view->name, |
628 | $view->sql); |
629 | |
630 | return $out; |
16dc9970 |
631 | } |
632 | |
d529894e |
633 | # ------------------------------------------------------------------- |
634 | sub mk_name { |
57f77285 |
635 | my $basename = shift || ''; |
636 | my $type = shift || ''; |
1c899510 |
637 | $type = '' if $type =~ /^\d/; |
57f77285 |
638 | my $scope = shift || ''; |
639 | my $critical = shift || ''; |
d529894e |
640 | my $basename_orig = $basename; |
f5087552 |
641 | my $max_name = $type |
642 | ? $max_id_length - (length($type) + 1) |
643 | : $max_id_length; |
96844cae |
644 | $basename = substr( $basename, 0, $max_name ) |
645 | if length( $basename ) > $max_name; |
d529894e |
646 | my $name = $type ? "${type}_$basename" : $basename; |
647 | |
648 | if ( $basename ne $basename_orig and $critical ) { |
649 | my $show_type = $type ? "+'$type'" : ""; |
650 | warn "Truncating '$basename_orig'$show_type to $max_id_length ", |
96844cae |
651 | "character limit to make '$name'\n" if $WARN; |
652 | $truncated{ $basename_orig } = $name; |
d529894e |
653 | } |
654 | |
655 | $scope ||= \%global_names; |
96844cae |
656 | if ( my $prev = $scope->{ $name } ) { |
657 | my $name_orig = $name; |
b89d5635 |
658 | substr($name, $max_id_length - 2) = "" |
659 | if length( $name ) >= $max_id_length - 1; |
660 | $name .= sprintf( "%02d", $prev++ ); |
96844cae |
661 | |
662 | warn "The name '$name_orig' has been changed to ", |
663 | "'$name' to make it unique.\n" if $WARN; |
664 | |
665 | $scope->{ $name_orig }++; |
666 | } |
667 | |
668 | $scope->{ $name }++; |
d529894e |
669 | return $name; |
670 | } |
671 | |
672 | # ------------------------------------------------------------------- |
673 | sub unreserve { |
57f77285 |
674 | my $name = shift || ''; |
675 | my $schema_obj_name = shift || ''; |
676 | |
96844cae |
677 | my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : ''; |
d529894e |
678 | |
679 | # also trap fields that don't begin with a letter |
57f77285 |
680 | return $name if !$ora_reserved{ uc $name } && $name =~ /^[a-z]/i; |
d529894e |
681 | |
682 | if ( $schema_obj_name ) { |
683 | ++$unreserve{"$schema_obj_name.$name"}; |
684 | } |
685 | else { |
686 | ++$unreserve{"$name (table name)"}; |
687 | } |
688 | |
689 | my $unreserve = sprintf '%s_', $name; |
690 | return $unreserve.$suffix; |
691 | } |
692 | |
16dc9970 |
693 | 1; |
694 | |
d529894e |
695 | # ------------------------------------------------------------------- |
16dc9970 |
696 | # All bad art is the result of good intentions. |
697 | # Oscar Wilde |
d529894e |
698 | # ------------------------------------------------------------------- |
16dc9970 |
699 | |
ba096dc4 |
700 | =pod |
16dc9970 |
701 | |
d529894e |
702 | =head1 CREDITS |
703 | |
ba096dc4 |
704 | Mad props to Tim Bunce for much of the logic stolen from his "mysql2ora" |
705 | script. |
16dc9970 |
706 | |
707 | =head1 AUTHOR |
708 | |
ba096dc4 |
709 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>. |
16dc9970 |
710 | |
711 | =head1 SEE ALSO |
712 | |
ba096dc4 |
713 | SQL::Translator, DDL::Oracle, mysql2ora. |
16dc9970 |
714 | |
715 | =cut |