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SQL exercises

February 11, 09:55 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: 15377

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	16	149	194	2026-02-10 15:42:58		1093
2	Sarkis'yan G. (gennadi_s)	16	149	193	2026-02-02 14:48:13	2026-02-06 14:23:09	5735
3	Komarov A.N. (Shveda Saulya)	43	52	149	2023-05-14 13:36:07	2026-02-05 21:16:28	1437580
4	Sarkis'yan G. (gennadi_s)	16	149	192	2026-01-29 14:47:50	2026-01-29 16:40:41	113
5	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		22579
6	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		98419
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		310123
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		431843
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		513997
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		544246
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		556434
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		704287
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		705595
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		728346
15	Komarov A.N. (Shveda Saulya)	43	52	157	2024-09-04 13:29:47		755786
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		837884
17	Slavutinskij V.V. (Vasilko)	452	0	5	2024-04-22 17:26:35		949949
18	Slavutinskij V.V. (Vasilko)	452	0	7	2024-04-22 17:26:21		949949
19	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		979105
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		1005626
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1019258
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1085300
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1088614
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1091003
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1123668
26	Komarov A.N. (Shveda Saulya)	43	52	150	2023-11-22 17:11:28		1168844
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1175931
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1200508
29	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1483095
30	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1517085
31	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1621074
32	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1717239
33	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1756447
34	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1873357
35	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2019938
36	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2271694
37	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2400046
38	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2534400
39	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2576587
40	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2580334
41	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2822400
42	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2889763
43	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2964093
44	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3029047
45	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3037018
46	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3076533
47	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3100260
48	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3410649
49	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3437931
50	Romanov K.Yu. (kostik)	309	0	12	2019-07-25 08:42:10		3445993
51	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3464277
52	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3508355
53	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3648330
54	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3746598
55	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3749779
56	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3891970
57	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3952517
58	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		4005876
59	Zyrin V.E. (Vezyr)	543	0	29	2018-05-29 14:14:19		4053341
60	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4145408
61	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4149317
62	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4149396
63	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4172025
64	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4186182
65	F (uff)	65	25	95	2018-01-22 15:57:03		4236118
66	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4287787
67	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4325257
68	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4327018
69	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4328086
70	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4365801
71	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4392918
72	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4425981
73	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4502626
74	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4549171
75	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4553320
76	F (uff)	65	25	185	2017-06-01 10:27:49		4574848
77	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4614721
78	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4676612
79	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4911515
80	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4946988
81	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5026211
82	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5156547
83	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5198646
84	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5368067
85	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5399754
86	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5433753
87	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5443114
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5468961
89	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5483265
90	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5484951
91	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5496560
92	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5500131
93	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5503462
94	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5547148
95	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5548415
96	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5556976
97	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5566707
98	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5575333
99	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5805772
100	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5807399

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