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SQL exercises

May 25, 19:55 MSK

SQL Exercises is intended for acquiring good practical experience, which is focused on data operation, namely on SQL DML. Certain exercises for beginners are provided on the site, they are supplied with the necessary reference source on SQL syntax with a great number of examples. Apart from them, 3 rating stages are suggested, they are aimed at testing of specialists and their certification. The source is absolutely free of charge, and the certificate purchase has a voluntary basis.
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SQL exercises

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Recent leaders activity

Rating - rating position;
3rd score - number of points earned on the third stage;
Ex - exercise's number;
Start - time when the exercise was started;
Finish - time when the exercise was solved;
S_time (min) - time in minutes spent for solving the exercise

Involved in rating: 15050

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	29	91	170	2025-05-24 14:28:57	2025-05-25 11:20:34	1252
2	Makarov I.A. (_Bkmz_)	93	9	132	2025-05-24 09:32:58	2025-05-24 15:24:39	352
3	Sarkis'yan G. (gennadi_s)	29	91	169	2025-05-10 14:31:13	2025-05-18 13:39:46	11469
4	Makarov I.A. (_Bkmz_)	93	9	133	2025-05-17 10:35:27	2025-05-17 14:19:16	224
5	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		55163
6	Fomichev A.V. (Fomichev)	195	0	7	2025-02-25 02:16:37		129219
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		137317
8	Chuvstvin M. (chuvstvinmaxim)	87	11	141	2025-01-29 11:09:56		167565
9	Chuvstvin M. (chuvstvinmaxim)	87	11	258	2025-01-21 00:01:28		179754
10	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		327607
11	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		328915
12	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		351665
13	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		379105
14	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		461204
15	Slavutinskij V.V. (Vasilko)	445	0	5	2024-04-22 17:26:35		573269
16	Slavutinskij V.V. (Vasilko)	445	0	7	2024-04-22 17:26:21		573269
17	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		602425
18	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		628946
19	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		642577
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		708620
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		711934
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		714323
23	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		746988
24	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		792164
25	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		799251
26	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		823827
27	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1068859
28	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1106415
29	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1140405
30	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1244394
31	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1340558
32	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1379767
33	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1496676
34	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1643258
35	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1757307
36	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1895014
37	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2023366
38	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2157720
39	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2199907
40	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2203654
41	Kozharinov A. (bubala)	205	0	10	2020-09-30 09:55:07		2445720
42	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2513083
43	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2587413
44	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2652367
45	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2660338
46	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2699852
47	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2723580
48	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3033969
49	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3061251
50	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3069313
51	Kordyum A. (alko58)	223	0	12	2019-07-12 15:58:52		3087596
52	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3131675
53	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3271650
54	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3369918
55	Grishunin M.F. (MikhailFG)	91	10	144	2018-12-26 09:36:27		3373099
56	Shindin A.V. (AlShin)	24	99	45	2018-09-18 15:45:28		3515290
57	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3575837
58	Voevutskij S.A. (SergLK)	210	0	45	2018-07-01 13:19:14		3629196
59	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3676661
60	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3768728
61	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3772637
62	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3772715
63	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3795345
64	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3809502
65	F (uff)	64	25	95	2018-01-22 15:57:03		3859438
66	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3911107
67	Kordyum A. (alko58)	223	0	101	2017-11-21 18:18:43		3948577
68	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		3950338
69	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3951406
70	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3989121
71	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4016238
72	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		4049301
73	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4125946
74	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4172490
75	Vorob'ev E.V. (Johnnymnemonic)	157	0	138	2017-06-16 09:15:49		4176639
76	F (uff)	64	25	185	2017-06-01 10:27:49		4198167
77	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		4238040
78	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4299931
79	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4534835
80	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4570308
81	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4649531
82	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4779867
83	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4821966
84	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4991386
85	Maslyaev V.S. (Velmont)	89	11	170	2015-11-06 14:01:20		5023074
86	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		5057073
87	Fomichev A.V. (Fomichev)	195	0	101	2015-10-07 11:21:04		5066434
88	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5092280
89	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5106584
90	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5108270
91	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5119880
92	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5123451
93	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5126782
94	Maslyaev V.S. (Velmont)	89	11	140	2015-07-27 05:27:50		5170467
95	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5171734
96	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5180296
97	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5190026
98	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5198653
99	Skorohod I. (Dracul4ik)	77	15	256	2015-01-28 15:03:11		5429092
100	Skorohod I. (Dracul4ik)	77	15	252	2015-01-27 11:56:41		5430719

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