-
Notifications
You must be signed in to change notification settings - Fork 0
/
jxdb_mssql.inc
2038 lines (1890 loc) · 70.9 KB
/
jxdb_mssql.inc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<?php
/**
* Janox MSSQL Database Gateway
* PHP5
*
*
* This file is part of Janox architecture.
*
* Janox is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at your option) any
* later version.
*
* Janox is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
*
* This script contains Janox data functions set for MSSQL database via SQLSRV PDO driver.
* SQLSRV is available on Windows machines only!
*
* @name jxmssql
* @package janox/dbms/jxdb_mssql.php
* @version 2.6
* @copyright Tommaso Vannini (tvannini@janox.it) 2007
* @author Tommaso Vannini (tvannini@janox.it)
*/
if (extension_loaded("pdo_sqlsrv")) {
$GLOBALS['dsn'] = "sqlsrv:server=";
}
elseif (extension_loaded("pdo_dblib")) {
$GLOBALS['dsn'] = "mssql:host=";
}
else {
throw new o2_exception("<b>MSSQL (neither SQLSRV nor FreeTDS) PDO</b> driver not ".
"loaded:<br />check your PHP configuration for ".
"<i>php_pdo_sqlsrv_*</i> or <i>php_pdo_dblib</i> extensions.",
o2error_DBCONNECT);
}
define("o2_mssql_o", "[");
define("o2_mssql_c", "]");
$o2_mssql_conn = array();
$o2_mssql_trans = array();
$o2_mssql_stms = array();
$o2_mssql_error = array();
/**
* Normalize a string for db writing escaping special chars
*
* @param string $string
* @param boolean $untrim
* @return string
*/
function o2_mssql_normalize($string, $untrim = false) {
return strtr(($untrim ? $string : trim($string)), array("'" => "''"));
}
/**
* Concatenate two or more strings and/or fields
*
* @param array $strings
* @return string
*/
function o2_mssql_concat($strings) {
return 'CONCAT('.implode(',', $strings).')';
}
/**
* Returns a database name fully qualified.
* For example $tab_name is returned as [db].[schema].[tab_name]
* If $name is omitted a fully qualified prefix will be returned, in the form
* [db].[schema]
*
* @param string $database
* @param string $owner
* @param string $string
* @return string
*/
function o2_mssql_qualify($database, $owner, $name = "") {
return o2_mssql_o.$database.o2_mssql_c.".".
o2_mssql_o.$owner.o2_mssql_c.
($name ? ".".o2_mssql_o.$name.o2_mssql_c : "");
}
/**
* Return a mssql connection handle
*
* @param string $server
* @param string $user
* @param string $password
* @param boolean $trans
* @return PDO
*/
function o2_mssql_connect($server, $user, $password, $trans) {
$app = $_SESSION['o2_app'];
// ___________________________________________________________ Prevent blank names ___
if (!$server) {
$server = "localhost";
}
// ___________________________________________________________ Connection encoding ___
if ($app->chr_encoding) {
switch (strtolower(str_replace(array("-", "_"), "", $app->chr_encoding))) {
case "windows1252":
case "cp1252":
$utf8 = false;
break;
case "utf8":
$utf8 = true;
break;
}
}
// ____________________________________ Isolated transaction: start new connection ___
if ($app->isolated_trans) {
$key = $server.$user."jxext";
$pers = false;
}
// _____________________________ In current transaction: use persistent connection ___
else {
$key = $server.$user;
$pers = true;
}
// _________________________________ Disable pers-conn due to crashes in sqlsrv3.0 ___
$pers = false;
// _____________________________________________________ Set connection attributes ___
$attr = array(PDO::ATTR_PERSISTENT => $pers,
PDO::ATTR_CASE => PDO::CASE_UPPER,
PDO::SQLSRV_ATTR_ENCODING => ($utf8 ?
PDO::SQLSRV_ENCODING_UTF8 :
PDO::SQLSRV_ENCODING_SYSTEM),
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION);
// _________________________________________________ Check for existing connection ___
if (!isset($GLOBALS['o2_mssql_conn'][$key])) {
// _____________________________________________________ Create new connection ___
if (!($conn_local = new PDO($GLOBALS['dsn'].$server,
$user,
$password,
$attr))) {
$err = $conn_local->errorInfo();
throw new o2_exception("<b>MSSQL</b> server: <i>".$server."</i><hr />".
$err[2],
o2error_DBCONNECT);
}
// ______________________________________________ Create transaction if needed ___
if ($trans) {
if (!$conn_local->beginTransaction()) {
$err = $conn_local->errorInfo();
throw new o2_exception("<b>MSSQL</b> server: <i>".$server."</i><hr />".
$err[2],
o2error_DBCONNECT);
}
else {
$GLOBALS['o2_mssql_trans'][$key] = true;
}
}
// _________________________________________________ Force roll-back or errors ___
$conn_local->exec("SET XACT_ABORT ON");
// ___________________________________________________________ Save connection ___
$GLOBALS['o2_mssql_conn'][$key] = $conn_local;
}
// _________________________________________________________ Check for transaction ___
elseif ($trans && !isset($GLOBALS['o2_mssql_trans'][$key])) {
$conn_local = $GLOBALS['o2_mssql_conn'][$key];
// _________________________________ Create transaction on existing connection ___
if (!$conn_local->beginTransaction()) {
$err = $conn_local->errorInfo();
throw new o2_exception("<b>MSSQL</b> server: <i>".$server."</i><hr />".
$err[2],
o2error_DBCONNECT);
}
else {
$GLOBALS['o2_mssql_trans'][$key] = true;
}
}
return $GLOBALS['o2_mssql_conn'][$key];
}
/**
* Execute a query on the given mssql server.
*
* For queries returning a recordset returns an array in the form:
* arr[0] = array(field_0 => value_0,
* field_1 => value_1,
* ...,
* field_n => value_n)
* arr[1] = array(field_0 => value_0,
* field_1 => value_1,
* ...,
* field_n => value_n)
* ...
* arr[n] = array(field_0 => value_0,
* field_1 => value_1,
* ...,
* field_n => value_n)
*
* For queries in the form 'SELECT [exp] AS COMPUTED' returns a numeric value
*
* For queries executing commands returns TRUE for correct execution
*
* @param string $query Query to be executed
* @param string $server Host to connect to
* @param string $user Connecion user name
* @param string $password Connection user password
* @param boolean $only_exe Execution only, no dataset returned
* @param boolean $trans Transaction needed (insert, update, delete, ... queries)
* @param integer $limit Number of records to fetch
* @param boolean $stm Statement to fetch on
* @return mix
*/
function o2_mssql_execute($query,
$server,
$user,
$password,
$only_exe = false,
$trans = true,
$limit = 0,
&$stm = false) {
// _____________________________________________________________________ SQL trace ___
if ($_SESSION['o2_app']->sqltrace) {
o2log($query);
}
// _____________________________________________ Execution only, no dataset return ___
if ($only_exe) {
try {
// ______________________________________________ Get connection to server ___
$conn = o2_mssql_connect($server, $user, $password, $trans);
$res = $conn->exec($query);
}
// ____________________________________________________ On execution exception ___
catch (Exception $o2e) {
$err = $conn->errorInfo();
$conn->rollBack && @$conn->rollBack();
$res = false;
throw new o2_exception("<b>MSSQL</b> server: <i>".$server.
"</i> (as Exception)<br>query: <code>".$query.
"</code><hr>".$err[2],
o2error_DBEXECUTE);
return false;
}
// _______________________________________ On other execution failure (NEVER!) ___
if ($res === false) {
$err = $conn->errorInfo();
$conn->rollBack && @$conn->rollBack();
throw new o2_exception("<b>MSSQL</b> server: <i>".$server.
"</i> (as Error)<br>query: <code>".$query.
"</code><hr>".$err[2],
o2error_DBEXECUTE);
return false;
}
return $res;
}
// ________________________________________________________ Queries returning data ___
else {
$loop = ($stm || ($stm === 0));
if (!$stm) {
try {
// __________________________________________ Get connection to server ___
$conn = o2_mssql_connect($server, $user, $password, $trans);
// _____________ Create statement and check execution failure (NEVER!) ___
if (!($stm = $conn->query($query))) {
$err = $conn->errorInfo();
$conn->rollBack && @$conn->rollBack();
throw new o2_exception("<b>MSSQL</b> server: <i>".$server.
"</i> (as Error)<br>query: <code>".$query.
"</code><hr>".$err[2],
o2error_DBDATAQUERY);
return false;
}
}
// ________________________________________________ On execution exception ___
catch (Exception $o2e) {
$err = $conn->errorInfo();
$conn->rollBack && @$conn->rollBack();
throw new o2_exception("<b>MSSQL</b> server: <i>".$server.
"</i> (as Exception)<br>query: <code>".$query.
"</code><hr>".$err[2],
o2error_DBEXECUTE);
return false;
}
}
// ____________________________________________________________ Return dataset ___
if ($loop) {
$set = array();
$num = 0;
try {
// _________________________________ Needed for some stored procedures ___
while($stm->columnCount() === 0 && $stm->nextRowset()) {
// _____________ Advance rowset until we get to a rowset with data ___
}
while ((!$limit || $num < $limit) &&
($row = $stm->fetch(PDO::FETCH_ASSOC))) {
$num++;
$set[] = $row;
}
if ($limit && $num < $limit) {
$stm->closeCursor();
$stm = null;
}
return $set;
}
// ________________________________________________ On execution exception ___
catch (Exception $o2e) {
$err = $conn->errorInfo();
$conn->rollBack && @$conn->rollBack();
throw new o2_exception("<b>MSSQL</b> server: <i>".$server.
"</i> (as Exception)<br>query: <code>".$query.
"</code><hr>".$err[2],
o2error_DBDATAQUERY);
return false;
}
}
else {
try {
// _________________________________ Needed for some stored procedures ___
while($stm->columnCount() === 0 && $stm->nextRowset()) {
// _____________ Advance rowset until we get to a rowset with data ___
}
$data = $stm->fetchAll(PDO::FETCH_ASSOC);
$err_c = $stm->errorCode();
// __ Error on statement (during fetch) (NEVER: catched as exception!) ___
if ($err_c != '00000') {
$err = $stm->errorInfo();
$conn->rollBack && @$conn->rollBack();
throw new o2_exception("<b>MSSQL</b> server: <i>".$server.
"</i> (as Error)<br>query: <code>".$query.
"</code><hr>".$err[2],
o2error_DBDATAQUERY);
}
$stm->closeCursor();
$stm = null;
return $data;
}
// ________________________________________________ On execution exception ___
catch (Exception $o2e) {
$err = $conn->errorInfo();
$stm->closeCursor();
$stm = null;
$conn->rollBack && @$conn->rollBack();
throw new o2_exception("<b>MSSQL</b> server: <i>".$server.
"</i> (as Exception)<br>query: <code>".$query.
"</code><hr>".$err[2],
o2error_DBDATAQUERY);
return false;
}
}
}
}
/**
* Retrieves user tables list from a mssql database
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database
* @param string $owner
* @return array
*/
function o2_mssql_tables($server, $user, $password, $database, $owner) {
$query = "USE ".o2_mssql_o.$database.o2_mssql_c;
o2_mssql_execute($query, $server, $user, $password, false, false);
$query = "EXEC sp_tables @table_qualifier = '".$database."', ".
"@table_owner = '".$owner."'";
$arr = array();
if ($res = o2_mssql_execute($query, $server, $user, $password, false, false)) {
foreach ($res as $table) {
$arr[] = $table['TABLE_NAME'];
}
}
return $arr;
}
/**
* Return TRUE if database cointains the specified table
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database
* @param string $owner
* @param string $table
* @return boolean
*/
function o2_mssql_tabexists($server, $user, $password, $database, $owner, $table) {
$query = "SELECT 1 AS IT_EXISTS FROM ".o2_mssql_o.$database.o2_mssql_c.".".
o2_mssql_o.$owner.o2_mssql_c.
".sysobjects WHERE (type='U' OR type='V') AND name='".$table."'";
$res = o2_mssql_execute($query, $server, $user, $password, false, false);
return ($res[0]["IT_EXISTS"] ? true : false);
}
/**
* Return an array containing informations about fileds of a mssql table:
* $arr[n] = array('Field' => field,
* 'Type' => type(dim),
* 'Default' => default)
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database
* @param string $owner
* @param string $table
* @return array
*/
function o2_mssql_tablefields($server, $user, $password, $database, $owner, $table) {
$arr = array();
$query = "USE ".o2_mssql_o.$database.o2_mssql_c.";\n";
o2_mssql_execute($query, $server, $user, $password, false, false);
$query = "EXEC sp_columns @table_qualifier = '".$database."', ".
"@table_owner = '".$owner."', ".
"@table_name = '".$table."'\n";
if (!($res = o2_mssql_execute($query, $server, $user, $password, false, false))) {
throw new o2_exception("<b>MSSQL</b> server: <i>".$server."</i>",
o2error_DBTABLEINFO);
}
else {
foreach ($res as $field) {
$arr[] = array('field' => $field['COLUMN_NAME'],
'type' => $field['TYPE_NAME'].
($field['TYPE_NAME'] != "text" ?
"(".$field['LENGTH'].")" : ""),
'default' => str_replace("(", "",
str_replace(")", "",
str_replace("'", "",
$field['COLUMN_DEF']))));
}
}
return $arr;
}
/**
* Return an array containing informations about indexes of a mssql table:
* $arr[n] = array('Field' => field,
* 'Type' => type(dim),
* 'Default' => default)
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database
* @param string $owner
* @param string $table
* @return array
*/
function o2_mssql_tableindexes($server, $user, $password, $database, $owner, $table) {
$ret_val = array();
$query = "USE ".o2_mssql_o.$database.o2_mssql_c;
o2_mssql_execute($query, $server, $user, $password, true, false);
$query = "EXEC sp_helpindex ".o2_mssql_o.$table.o2_mssql_c;
try {
$res_local = o2_mssql_execute($query, $server, $user, $password, false, false);
}
catch (o2_exception $o2e) {
$res_local = array();
$o2e->set_error_class(o2error_DBTABLEINFO);
throw $o2e;
}
foreach ($res_local as $single_key) {
if (strtoupper($single_key['INDEX_NAME']) != "JXPK_".strtoupper($table)) {
$seq_no = 0;
$unique = stripos($single_key['INDEX_DESCRIPTION'], 'unique') !== false;
$ret_val[$single_key['INDEX_NAME']] = array('unique' => $unique,
'segments' => array());
foreach (explode(",", $single_key['INDEX_KEYS']) as $single_segment) {
if (strpos($single_segment, "(-)")) {
$single_segment = trim(str_replace("(-)", "", $single_segment));
$dir_local = "D";
}
else {
$single_segment = trim($single_segment);
$dir_local = "A";
}
$ret_val[$single_key['INDEX_NAME']]['segments']+=
array($seq_no => array('column' => $single_segment,
'dir' => $dir_local));
$seq_no++;
}
}
}
return $ret_val;
}
/**
* Insert into table A data read from table B and return TRUE on success.
* Matching fileds are passed by array $values in the form:
* $values[field_from] = field_to
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database_from
* @param string $owner_from
* @param string $table_from
* @param string $database_to
* @param string $owner_to
* @param string $table_to
* @param array $values
* @param string $where optional WHERE clause for filtering copied records
* @return boolean
*/
function o2_mssql_insertfrom($server,
$user,
$password,
$database_from,
$owner_from,
$table_from,
$database_to,
$owner_to,
$table_to,
$values,
$where = "") {
$list_from = "";
$list_to = "";
foreach ($values as $field_from => $field_to) {
$sep = ($list_from ? "," : "");
if ($field_from == "@o2CloneArea") {
$list_from.= $sep.$field_to;
$list_to .= $sep."O2ASPID";
}
else {
$list_from.= $sep.$field_from;
$list_to .= $sep.$field_to;
}
}
$query = "INSERT INTO ".o2_mssql_o.$database_to.o2_mssql_c.".".
o2_mssql_o.$owner_to.o2_mssql_c.".".
o2_mssql_o.$table_to.o2_mssql_c.
" (".$list_to.") SELECT ".$list_from.
" FROM ".o2_mssql_o.$database_from.o2_mssql_c.".".
o2_mssql_o.$owner_from.o2_mssql_c.".".
o2_mssql_o.$table_from.o2_mssql_c;
if ($where) {
$query.= " WHERE ".$where;
}
try {
$aff_rows = o2_mssql_execute($query, $server, $user, $password, true, true);
}
catch (o2_exception $o2e) {
$o2e->set_error_class(o2error_DBTABLECOPY);
throw $o2e;
return false;
}
return $aff_rows;
}
/**
* Phisically removes a mssql table
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database
* @param string $owner
* @param string $table
* @return boolean
*/
function o2_mssql_droptable($server, $user, $password, $database, $owner, $table) {
$query = "DROP TABLE ".o2_mssql_o.$database.o2_mssql_c.".".
o2_mssql_o.$owner.o2_mssql_c.".".
o2_mssql_o.$table.o2_mssql_c."\n";
try {
o2_mssql_execute($query, $server, $user, $password, true, true);
}
catch (o2_exception $o2e) {
$o2e->set_error_class(o2error_DBTABLEDROP);
throw $o2e;
}
o2_mssql_commit($server, $user, $password, $database);
return true;
}
/**
* Phisically renames a mssql table
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database
* @param string $owner
* @param string $table
* @param string $new_name
* @return boolean
*/
function o2_mssql_renametable($server,
$user,
$password,
$database,
$owner,
$table,
$new_name) {
try {
// ______________________________________________________ Get existing indexes ___
$query = "USE ".o2_mssql_o.$database.o2_mssql_c."\n";
o2_mssql_execute($query, $server, $user, $password, true, false);
$query = "EXEC sp_helpindex ".o2_mssql_o.$table.o2_mssql_c;
$res = o2_mssql_execute($query, $server, $user, $password, false, false);
// ______________________________________________________________ Rename table ___
$query = "EXEC sp_rename '".$database.".".$owner.".".$table."', "."'".
$new_name."'\n";
o2_mssql_execute($query, $server, $user, $password, true, true);
// ________________________________________________________ Rename primary key ___
foreach ($res as $single_key) {
if (strtoupper($single_key['INDEX_NAME']) == "JXPK_".strtoupper($table)) {
$query = "EXEC sp_rename '".$single_key['INDEX_NAME']."','JXPK_".
$new_name."','OBJECT'";
o2_mssql_execute($query, $server, $user, $password, true, true);
break;
}
}
}
catch (o2_exception $o2e) {
$o2e->set_error_class(o2error_DBTABLEREBUILD);
throw $o2e;
}
o2_mssql_commit($server, $user, $password, $database);
return true;
}
/**
* If $execute is passed TRUE function phisically creates a MSSQL table, else it returns
* the mssql creation script for the table.
* Array $structure is an array descriptive of the table structure.
*
* Array is in the form:
* array("fields" => array([field_1] => array("type" => A|N|L|D|T|S,
* "size" => size,
* "int" => integers,
* "dec" => decimals),
* [field_2] => array("type" => A|N|L|D|T|S,
* "size" => size,
* "int" => integers,
* "dec" => decimals),
* [...]
* [field_n] => array("type" => A|N|L|D|T|S,
* "size" => size,
* "int" => integers,
* "dec" => decimals)),
* "keys" => array([key_1] => array([field_1] => A|D,
* [field_2] => A|D,
* [...]
* [field_n] => A|D),
* [key_2] => array([field_1] => A|D,
* [field_2] => A|D,
* [...]
* [field_n] => A|D),
* [...]
* [key_n] => array([field_1] => A|D,
* [field_2] => A|D,
* [...]
* [field_n] => A|D)),
* "indexes" => array([idx_1] => array([field_1] => A|D,
* [field_2] => A|D,
* [...]
* [field_n] => A|D),
* [idx_2] => array([field_1] => A|D,
* [field_2] => A|D,
* [...]
* [field_n] => A|D),
* [...]
* [idx_n] => array([field_1] => A|D,
* [field_2] => A|D,
* [...]
* [field_n] => A|D)),
* "primary" => array([pkeyname] => array([field_1] => A|D,
* [field_2] => A|D,
* [...]
* [field_n] => A|D)))
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database
* @param string $owner
* @param string $table
* @param array $structure
* @param boolean $execute
* @return boolean
*/
function o2_mssql_createtable($server,
$user,
$password,
$database,
$owner,
$table,
$structure,
$execute = true) {
$query = "CREATE TABLE ".o2_mssql_o.$database.o2_mssql_c.".".
o2_mssql_o.$owner.o2_mssql_c.".".
o2_mssql_o.$table.o2_mssql_c." (\n";
$type = "";
$default = "";
foreach ($structure["fields"] as $field_name => $field_prop) {
$query.= o2_mssql_field_create($field_name,
$field_prop['type'],
$field_prop['size'],
$field_prop['int'],
$field_prop['dec']).",\n";
}
$query = substr($query, 0, -2).")\n";
$query.= "ALTER TABLE ".o2_mssql_o.$database.o2_mssql_c.".".
o2_mssql_o.$owner.o2_mssql_c.".".
o2_mssql_o.$table.o2_mssql_c."\n";
// ___________________________________________________________________ PRIMARY KEY ___
$arr_local = array();
foreach ($structure["primary"] as $pk_name => $pk_segments) {
break;
}
$query.= "ADD CONSTRAINT JXPK_".$table." PRIMARY KEY CLUSTERED (".
o2_mssql_indexfields_create($pk_segments).") ON [PRIMARY]\n";
// ________________________________________________________________ UNIQUE INDEXES ___
foreach ($structure["keys"] as $index_name => $index_segs) {
$query.= o2_mssql_index_create($index_name,
$index_segs,
$table,
$database,
$owner,
true)."\n";
}
// ____________________________________________________________ NOT UNIQUE INDEXES ___
foreach ($structure["indexes"] as $index_name => $index_segs) {
$query.= o2_mssql_index_create($index_name,
$index_segs,
$table,
$database,
$owner,
false)."\n";
}
if ($execute) {
try {
o2_mssql_execute($query, $server, $user, $password, true, false);
}
catch (o2_exception $o2e) {
$o2e->set_error_class(o2error_DBTABLECREATE);
throw $o2e;
}
o2_mssql_commit($server, $user, $password, $database);
return true;
}
else {
return $query;
}
}
/**
* Returns mssql definition for single field by Janox-type
*
* @param string $name Field name
* @param string $type Field type (A|N|L|D|T|S)
* @param integer $size Total size for alpha
* @param integer $int Total size or integer part
* @param integer $dec Number of decimals digits (only numbers)
* @param boolean $for_change If script is requested for ALTER COLUMN syntax
* @return string SQL code to create field
*/
function o2_mssql_field_create($name, $type, $size, $int, $dec, $for_change = false) {
switch ($type) {
case "A":
if ($size <= 8000) {
$ftype = "VARCHAR(".$size.")";
}
else {
$ftype = "VARCHAR(max)";
}
$default = "('')";
break;
case "N":
if ($dec) {
$ftype = "DECIMAL(".($int + $dec).", ".$dec.")";
}
elseif ($int < 5) {
$ftype = "SMALLINT";
}
elseif ($int < 10) {
$ftype = "INT";
}
else {
$ftype = "BIGINT";
}
$default = "(0)";
break;
case "L":
$ftype = "CHAR(1)";
$default = "('0')";
break;
case "D":
$ftype = "CHAR(8)";
$default = "('00000000')";
break;
case "T":
$ftype = "CHAR(6)";
$default = "('000000')";
break;
case "S":
$ftype = "VARCHAR(max)";
$default = "('')";
break;
}
if ($for_change) {
return $name." ".$ftype." NOT NULL";
}
else {
return $name." ".$ftype." NOT NULL DEFAULT ".$default;
}
}
/**
* Returns mssql definition for single index by Janox-type.
* $key_segs is a list of key segments, in the form <field-name> => <direction>,
* where <direction> is A|D for ascending or descending.
*
* @param string $key_name Index name
* @param array $key_segs Index segments as an array "name" => <direction>
* @param string $table Table physical name
* @param string $database Database name
* @param string $owner Database owner
* @param boolean $unique Index is unique
* @return string SQL code to create index
*/
function o2_mssql_index_create($key_name,
$key_segs,
$table,
$database,
$owner,
$unique = true) {
return 'CREATE'.($unique ? ' UNIQUE' : '').
' NONCLUSTERED INDEX '.o2_mssql_o.$key_name.o2_mssql_c.
' ON '.o2_mssql_o.$database.o2_mssql_c.'.'.
o2_mssql_o.$owner.o2_mssql_c.'.'.
o2_mssql_o.$table.o2_mssql_c.
' ('.o2_mssql_indexfields_create($key_segs).')';
}
/**
* Return ORDER_BY clausole for all the fields of an index in a mssql context.
* List has to be comma separated and rightly qualified.
*
* $fields array parameter is passed in the form:
* $fields[field_name] = direction [D/A]
*
* @param array $fields
* @return string
*/
function o2_mssql_indexfields_create($fields) {
$str = "";
foreach ($fields as $field => $direction) {
$str.= ($str ? "," : "").$field.($direction == "D" ? " DESC" : " ASC");
}
return $str;
}
/**
* Alter a MSSQL table to add a column
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database
* @param string $owner
* @param string $table
* @param string $field_name
* @param string $field_type
* @param integer $field_size
* @param integer $field_int
* @param integer $field_dec
* @return boolean
*/
function o2_mssql_field_add($server,
$user,
$password,
$database,
$owner,
$table,
$field_name,
$field_type,
$field_size,
$field_int,
$field_dec) {
$query = "ALTER TABLE ".o2_mssql_o.$database.o2_mssql_c.".".
o2_mssql_o.$owner.o2_mssql_c.".".
o2_mssql_o.$table.o2_mssql_c.
" ADD ".o2_mssql_field_create(o2_mssql_o.$field_name.o2_mssql_c,
$field_type,
$field_size,
$field_int,
$field_dec);
try {
$res = o2_mssql_execute($query, $server, $user, $password, true, true);
}
catch (o2_exception $o2e) {
$o2e->set_error_class(o2error_DBTABLEALTER);
throw $o2e;
}
}
/**
* Alter a mssql table to remove a column
*
* @param string $server
* @param string $user
* @param string $password
* @param string $database
* @param string $owner
* @param string $table
* @param string $field_name
* @return boolean
*/
function o2_mssql_field_remove($server,
$user,
$password,
$database,
$owner,
$table,
$field_name) {
$query = "select o.[NAME] from ".
o2_mssql_o.$database.o2_mssql_c.".sys.sysobjects o inner join ".
o2_mssql_o.$database.o2_mssql_c.
".sys.syscolumns c on o.id = c.cdefault inner join ".
o2_mssql_o.$database.o2_mssql_c.
".sys.sysobjects t on c.id = t.id where o.xtype = 'D' and t.name = '".$table.
"' and c.name = '".$field_name."'";
try {
$res = o2_mssql_execute($query, $server, $user, $password, false, false);
}
catch (o2_exception $o2e) {
$o2e->set_error_class(o2error_DBTABLEALTER);
throw $o2e;
return false;
}
if ($res[0]['NAME']) {
$query = "ALTER TABLE ".o2_mssql_o.$database.o2_mssql_c.".".
o2_mssql_o.$owner.o2_mssql_c.".".
o2_mssql_o.$table.o2_mssql_c.
" DROP CONSTRAINT ".o2_mssql_o.$res[0]['NAME'].o2_mssql_c;
try {
$res = o2_mssql_execute($query, $server, $user, $password, false, false);
}
catch (o2_exception $o2e) {
$o2e->set_error_class(o2error_DBTABLEALTER);