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SQL exercises

October 13, 17:30 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: 15185

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	182	2025-10-13 15:25:57		124
2	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
3	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		136337
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		258058
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		332114
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		340212
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		370460
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		382649
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		530502
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		531810
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		554560
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		582001
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		664099
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		776164
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		776164
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		805320
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		831841
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		845472
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		911515
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		914829
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		917218
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		949883
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		995059
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1002146
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1026722
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1271754
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1309310
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1343300
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1447289
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1543453
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1582662
32	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1699571
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1846153
34	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1960202
35	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2097909
36	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2226261
37	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2360615
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2402802
39	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2406549
40	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2648615
41	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2715978
42	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2790308
43	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2855262
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2863233
45	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2902747
46	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2926475
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3236864
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3264146
49	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3272208
50	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3290491
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3334570
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3474545
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3572813
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3575994
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3718185
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3778732
57	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3832091
58	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3879556
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3971623
60	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3975532
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3975610
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3998240
63	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4012397
64	F (uff)	65	25	95	2018-01-22 15:57:03		4062333
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4114002
66	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4151472
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4153233
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4154301
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4192016
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4219133
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4252196
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4328841
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4375385
74	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4379534
75	F (uff)	65	25	185	2017-06-01 10:27:49		4401062
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4440935
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4502826
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4737730
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4773203
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4852426
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4982762
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5024861
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5194281
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5225969
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5259968
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5269329
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5295175
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5309479
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5311165
90	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5322775
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5326346
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5329677
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5373362
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5374629
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5383191
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5392921
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5401548
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5631987
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5633614
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5681774

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