Supprimer enregistrements Access de type Date

Bonjour,
Prière de m'aider a fin de trouver une qui sert de supprimer des enregistrements d'une base de donnée access, cette base contient plusieurs tables dont un champ (TimeOfSimple) de type date/heure -voir ci-dessous- qui affiche plusieurs dates de mois différents,mon objectif est comment arriver a supprimer les dates anciens et maintenir seulement les dates de dernier mois, exp Avril 2012.

Index TimeOfSample
0 1/24/2012 11:18:35 AM
1 1/24/2012 11:19:00 AM
66 1/24/2012 4:53:52 PM
167 1/24/2012 10:49:43 PM
212 1/25/2012 12:00:06 AM
273 1/25/2012 6:08:31 AM
321 1/25/2012 8:02:28 AM
433 1/25/2012 4:19:24 PM
436 1/25/2012 4:22:24 PM
438 1/25/2012 4:24:23 PM
524 1/26/2012 7:53:05 AM
592 1/26/2012 4:54:54 PM
686 1/27/2012 12:00:12 AM
785 1/27/2012 9:24:31 AM
851 1/27/2012 2:11:27 PM
859 1/27/2012 2:19:27 PM
879 1/27/2012 2:39:27 PM
891 1/27/2012 2:51:27 PM
962 1/27/2012 4:23:24 PM
1057 1/28/2012 12:00:18 AM
1167 1/28/2012 8:14:08 AM
1222 1/28/2012 4:39:00 PM
1319 1/29/2012 12:00:16 AM
1391 1/29/2012 3:49:43 AM
1414 1/29/2012 7:00:40 AM
1477 1/29/2012 8:12:40 AM
1562 1/29/2012 5:07:28 PM
1641 1/30/2012 9:00:49 AM
1767 1/30/2012 4:27:38 PM
1866 1/31/2012
1896 1/31/2012 12:57:26 AM
2016 1/31/2012 7:00:18 AM
2084 1/31/2012 8:15:18 AM
2136 1/31/2012 4:32:06 PM
2194 2/1/2012 3:17:55 AM
2220 2/1/2012 7:00:50 AM
2258 2/1/2012 7:44:49 AM
2338 2/1/2012 6:19:28 PM
2365 2/1/2012 9:41:21 PM
2371 2/2/2012 12:00:03 AM
2474 2/3/2012 12:00:05 AM
2570 2/4/2012 5:11:45 AM
2698 2/4/2012 7:50:41 AM
2786 2/4/2012 5:03:29 PM
2891 2/5/2012 12:00:07 AM
2909 2/5/2012 12:39:21 AM
3035 2/5/2012 4:20:08 PM
3090 2/5/2012 11:08:59 PM
3141 2/6/2012 12:00:01 AM
3223 2/6/2012 4:54:35 PM
3295 2/6/2012 10:04:26 PM
3385 2/7/2012 11:42:15 AM
3490 2/7/2012 4:12:10 PM
3531 2/7/2012 5:00:10 PM
3609 2/7/2012 9:05:08 PM
3622 2/8/2012 12:00:03 AM
3700 2/8/2012 6:08:42 PM
3718 2/8/2012 9:23:37 PM
3829 2/10/2012
3941 2/11/2012 12:00:06 AM
4063 2/11/2012 5:29:13 AM
4150 2/11/2012 7:01:12 AM
4153 2/11/2012 7:04:12 AM
4240 2/11/2012 9:08:10 AM
4322 2/11/2012 7:28:59 PM
4421 2/12/2012 12:00:54 AM
4526 2/12/2012 5:11:29 PM
4527 2/12/2012 5:12:29 PM
4528 2/12/2012 5:13:29 PM
4611 2/12/2012 10:09:21 PM
4678 2/13/2012 12:00:03 AM
4794 2/14/2012 12:00:01 AM
4911 2/15/2012 12:00:04 AM
4992 2/15/2012 1:30:16 AM
5051 2/15/2012 7:01:07 AM
5053 2/15/2012 7:03:07 AM
5081 2/15/2012 7:31:06 AM
5103 2/15/2012 10:38:23 AM
5104 2/15/2012 10:38:23 AM
5165 2/15/2012 3:00:22 PM
5166 2/15/2012 3:00:22 PM
5219 2/15/2012 4:57:59 PM
5221 2/15/2012 4:59:59 PM
5225 2/15/2012 5:03:59 PM
5330 2/16/2012 7:42:43 AM
5381 2/16/2012 4:08:37 PM
5429 2/16/2012 4:56:36 PM
5432 2/16/2012 4:59:36 PM
5555 2/17/2012 12:00:25 AM
5678 2/17/2012 7:59:18 AM
5689 2/17/2012 8:14:17 AM
5693 2/17/2012 8:18:17 AM
5820 2/17/2012 5:23:04 PM
5945 2/18/2012
6048 2/18/2012 7:37:43 AM
6099 2/18/2012 5:25:39 PM
6225 2/19/2012 12:00:24 AM
6324 2/19/2012 7:32:15 AM
6451 2/19/2012 5:19:58 PM
6524 2/20/2012 12:25:53 AM
6592 2/20/2012 7:00:44 AM
6621 2/20/2012 7:29:44 AM
6744 2/20/2012 5:15:30 PM
6871 2/21/2012 12:00:19 AM
6952 2/21/2012 8:10:09 AM
7061 2/21/2012 4:59:55 PM
7111 2/22/2012 12:00:20 AM
7199 2/22/2012 8:37:38 AM
7201 2/22/2012 8:39:38 AM
7202 2/22/2012 8:40:38 AM
7240 2/22/2012 9:54:37 AM
7256 2/22/2012 10:10:37 AM
7355 2/22/2012 2:23:32 PM
7358 2/22/2012 2:26:32 PM
7363 2/22/2012 4:46:31 PM
7370 2/22/2012 4:53:31 PM
7472 2/22/2012 4:30:31 PM
7475 2/22/2012 4:33:31 PM
7484 2/22/2012 4:42:31 PM
7487 2/22/2012 4:46:31 PM
7494 2/22/2012 4:53:31 PM
7588 2/23/2012 7:23:09 AM
7589 2/23/2012 7:24:09 AM
7590 2/23/2012 7:25:08 AM
7691 2/23/2012 4:49:50 PM
7717 2/23/2012 5:15:48 PM
7719 2/23/2012 5:17:48 PM
7771 2/24/2012 12:00:41 AM
7847 2/24/2012 7:03:33 AM
7909 2/24/2012 5:29:26 PM
7962 2/25/2012 12:00:18 AM
8067 2/25/2012 7:31:14 AM
8072 2/25/2012 7:36:14 AM
8076 2/25/2012 7:40:14 AM
8141 2/25/2012 5:31:04 PM
8196 2/26/2012 12:00:23 AM
8288 2/26/2012 7:16:44 AM
8349 2/26/2012 5:25:35 PM
8405 2/27/2012 12:00:26 AM
8526 2/27/2012 9:04:16 AM
8600 2/27/2012 5:37:03 PM
8691 2/28/2012 7:13:45 AM
8764 2/28/2012 5:35:26 PM
8822 2/29/2012 12:00:18 AM
8914 2/29/2012 7:13:08 AM
8989 2/29/2012 5:35:57 PM
9080 3/1/2012 7:11:38 AM
9158 3/1/2012 5:38:13 PM
9218 3/2/2012 12:00:05 AM
9315 3/2/2012 7:15:58 AM
9396 3/2/2012 5:39:48 PM
9486 3/3/2012 7:08:21 AM
9564 3/3/2012 5:36:05 PM
9626 3/4/2012
9708 3/4/2012 8:18:44 AM
9715 3/4/2012 8:25:44 AM
9729 3/4/2012 8:39:44 AM
9738 3/4/2012 9:12:43 AM
9820 3/4/2012 11:45:40 AM
9894 3/4/2012 5:30:37 PM
9969 3/5/2012 8:11:20 AM
9993 3/5/2012 8:35:19 AM
10002 3/5/2012 8:44:19 AM
10075 3/5/2012 5:29:03 PM
10139 3/6/2012
10232 3/6/2012 7:07:53 AM
10321 3/6/2012 4:23:40 PM
10387 3/7/2012 12:00:01 AM
10439 3/7/2012 7:45:21 AM
10517 3/7/2012 2:51:16 PM
10523 3/7/2012 2:57:16 PM
10551 3/7/2012 4:08:14 PM
10579 3/7/2012 4:36:14 PM
10582 3/7/2012 4:39:14 PM
10678 3/8/2012 7:08:57 AM
10779 3/8/2012 5:53:44 PM
10847 3/9/2012
10951 3/9/2012 7:15:27 AM
11025 3/9/2012 4:05:15 PM
11028 3/9/2012 4:08:15 PM
11052 3/9/2012 4:32:13 PM
11058 3/9/2012 4:38:13 PM
11071 3/9/2012 4:51:13 PM
11140 3/10/2012 12:00:02 AM
11218 3/10/2012 8:07:54 AM
11255 3/10/2012 8:44:53 AM
11266 3/10/2012 8:55:53 AM
11267 3/10/2012 8:56:53 AM
11338 3/11/2012 12:00:01 AM
11460 3/11/2012 7:30:18 AM
11507 3/11/2012 10:30:11 AM
11601 3/12/2012 7:01:46 AM
11705 3/12/2012 5:51:35 PM
11778 3/13/2012 12:00:19 AM
11870 3/13/2012 6:58:20 AM
11971 3/13/2012 5:47:00 PM
12065 3/14/2012 6:59:32 AM
12168 3/14/2012 5:48:16 PM
12243 3/15/2012 12:00:01 AM
12334 3/15/2012 6:54:58 AM
12440 3/15/2012 5:49:40 PM
12496 3/16/2012 4:59:26 AM
12500 3/16/2012 5:03:26 AM
12602 3/16/2012 7:52:23 AM
12714 3/16/2012 5:55:02 PM
12792 3/17/2012 12:00:15 AM
12880 3/17/2012 6:49:39 AM
12885 3/17/2012 6:54:39 AM
12930 3/17/2012 8:13:37 AM
13045 3/17/2012 5:56:18 PM
13124 3/18/2012 12:00:01 AM
13212 3/18/2012 6:47:55 AM
13328 3/18/2012 5:55:36 PM
13416 3/19/2012 6:47:12 AM
13532 3/19/2012 5:54:51 PM
13614 3/20/2012 12:00:03 AM
13713 3/20/2012 6:56:30 AM
13818 3/20/2012 5:42:18 PM
13901 3/21/2012
14013 3/21/2012 7:08:03 AM
14097 3/21/2012 5:19:50 PM
14198 3/22/2012 6:56:36 AM
14250 3/22/2012 4:47:13 PM
14254 3/22/2012 4:51:13 PM
14276 3/22/2012 5:13:13 PM
14361 3/23/2012
14475 3/23/2012 7:07:54 AM
14521 3/23/2012 10:14:23 AM
14522 3/23/2012 10:14:23 AM
14643 3/23/2012 5:52:53 PM
14732 3/24/2012
14848 3/24/2012 7:06:39 AM
14849 3/24/2012 7:07:39 AM
14856 3/24/2012 7:24:39 AM
14858 3/24/2012 7:26:39 AM
14874 3/24/2012 7:42:38 AM
14978 3/24/2012 5:34:26 PM
15080 3/25/2012 6:52:03 AM
15104 3/25/2012 7:16:03 AM
15186 3/25/2012 10:46:56 AM
15279 3/25/2012 6:42:36 PM
15370 3/26/2012 12:00:01 AM
15444 3/26/2012 6:22:10 AM
15538 3/26/2012 6:41:56 PM
15625 3/27/2012 6:34:42 AM
15750 3/27/2012 5:52:28 PM
15843 3/28/2012
15942 3/28/2012 6:45:13 AM
15991 3/28/2012 5:54:58 PM
16086 3/29/2012 12:00:01 AM
16176 3/29/2012 6:34:37 AM
16233 3/29/2012 6:01:18 PM
16356 3/30/2012 7:06:59 AM
16428 3/30/2012 4:55:48 PM
16452 3/30/2012 5:19:47 PM
16457 3/30/2012 5:24:47 PM
16554 3/31/2012 12:00:14 AM
16645 3/31/2012 6:33:27 AM
16705 3/31/2012 6:02:12 PM
16793 4/1/2012 6:29:51 AM
16885 4/1/2012 6:33:35 PM
16956 4/1/2012 11:32:28 PM
16984 4/2/2012 12:00:02 AM
17046 4/3/2012 6:01:55 AM
17086 4/3/2012 7:46:55 AM
17168 4/3/2012 9:01:35 PM
17174 4/4/2012 12:00:08 AM
17210 4/4/2012 3:09:24 AM
17313 4/4/2012 8:16:21 AM
17393 4/4/2012 4:58:14 PM
17475 4/4/2012 11:40:07 PM
17528 4/5/2012 4:30:59 AM
17581 4/5/2012 6:37:56 AM
17684 4/6/2012 12:00:06 AM
17747 4/6/2012 5:59:11 PM
17810 4/6/2012 8:06:07 PM
17898 4/7/2012 2:23:57 AM
17966 4/7/2012 6:18:53 AM
18044 4/7/2012 6:13:40 PM
18149 4/8/2012
18247 4/8/2012 6:32:23 AM
18353 4/9/2012 12:00:01 AM
18438 4/9/2012 3:38:27 PM
18511 4/9/2012 5:33:24 PM
18612 4/9/2012 10:34:13 PM
18673 4/10/2012 12:01:11 AM
18684 4/10/2012 12:12:10 AM
18759 4/10/2012 1:35:07 AM
18885 4/10/2012 3:46:00 AM
18911 4/10/2012 6:20:53 AM
19019 4/11/2012 12:00:09 AM
19144 4/11/2012 2:23:24 AM
19244 4/11/2012 6:31:17 AM
19325 4/11/2012 6:11:57 PM
19407 4/11/2012 11:32:50 PM
19435 4/12/2012 12:00:01 AM
19509 4/12/2012 4:43:43 AM
19563 4/12/2012 6:30:42 AM
19682 4/13/2012 5:28:00 AM
19751 4/13/2012 6:44:59 AM
19752 4/13/2012 6:45:59 AM
19753 4/13/2012 6:46:59 AM
19754 4/13/2012 6:47:59 AM
19755 4/13/2012 6:48:59 AM
19808 4/13/2012 7:48:56 AM
19819 4/13/2012 7:59:56 AM
19820 4/13/2012 8:00:56 AM
19825 4/13/2012 8:05:55 AM
19829 4/13/2012 8:09:55 AM
19830 4/13/2012 8:10:55 AM
19831 4/13/2012 8:11:55 AM
19836 4/13/2012 8:20:55 AM
19961 4/13/2012 6:53:46 PM
20038 4/13/2012 8:12:45 PM
20135 4/14/2012 12:00:01 AM
20136 4/14/2012 12:00:39 AM
20225 4/14/2012 6:16:27 AM
20234 4/14/2012 6:25:27 AM
20252 4/14/2012 6:43:27 AM
20267 4/14/2012 7:09:27 AM
20309 4/14/2012 8:56:26 AM
20425 4/14/2012 6:43:14 PM
20516 4/15/2012 6:18:00 AM
20638 4/15/2012 2:48:44 PM
20752 4/16/2012 12:00:05 AM
20833 4/16/2012 6:06:22 AM
20885 4/16/2012 5:37:04 PM
20968 4/16/2012 11:27:55 PM
21062 4/17/2012 3:53:50 AM
21070 4/17/2012 6:27:47 AM
21195 4/17/2012 4:09:32 PM
21311 4/18/2012 12:00:01 AM
21403 4/18/2012 7:35:03 AM
21497 4/18/2012 6:16:46 PM
21585 4/19/2012 6:10:27 AM
21707 4/19/2012 5:24:07 PM
21825 4/20/2012
21909 4/20/2012 6:04:51 AM
21965 4/20/2012 5:36:33 PM
21975 4/20/2012 5:46:32 PM
21988 4/20/2012 5:59:32 PM
22002 4/20/2012 6:13:32 PM
22005 4/20/2012 6:16:32 PM
22070 4/20/2012 11:05:26 PM
22106 4/21/2012 2:51:21 AM
22222 4/21/2012 6:03:14 AM
22285 4/21/2012 5:42:43 PM
22286 4/21/2012 5:43:43 PM
22287 4/21/2012 5:44:42 PM
22297 4/21/2012 5:54:42 PM
22307 4/21/2012 6:04:42 PM
22314 4/21/2012 9:01:27 PM
22341 4/22/2012
22440 4/22/2012 6:16:28 AM
22445 4/22/2012 6:21:28 AM
22524 4/22/2012 10:11:22 AM
22603 4/22/2012 4:36:09 PM
22628 4/22/2012 5:49:07 PM
22680 4/22/2012 6:41:05 PM
22688 4/22/2012 9:00:02 PM
22717 4/23/2012 12:00:06 AM
22809 4/23/2012 6:07:30 PM
22846 4/23/2012 7:19:30 PM
22896 4/24/2012 4:05:14 AM
22937 4/24/2012 6:03:08 AM
23063 4/25/2012 12:00:01 AM
23166 4/25/2012 6:16:13 PM
23253 4/26/2012 5:59:55 AM
23359 4/26/2012 6:18:39 PM
23367 4/26/2012 8:55:37 PM
23400 4/27/2012
23450 4/27/2012 5:21:30 AM
23486 4/27/2012 5:57:29 AM
23580 4/27/2012 6:05:08 PM
23676 4/27/2012 10:22:03 PM
23758 4/28/2012
23782 4/28/2012 3:15:53 AM
23905 4/28/2012 5:59:49 AM
23956 4/29/2012 12:00:01 AM
24068 4/29/2012 4:59:48 PM
24187 4/29/2012 10:26:37 PM
24215 4/29/2012 11:02:37 PM
24221 4/30/2012 12:00:16 AM
24256 4/30/2012 1:48:33 AM
24370 4/30/2012 6:20:05 PM
24490 4/30/2012 8:33:03 PM
24544 5/1/2012
24617 5/1/2012 6:57:32 PM
24690 5/1/2012 9:04:29 PM
24731 5/2/2012
24773 5/2/2012 1:52:23 AM
24843 5/2/2012 5:48:19 AM

Meilleures salutation.