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SQL exercises

October 01, 00:06 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: 13882

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Kostomarov A.V. (al29)	5	247	53	2026-09-30 08:53:59		912
2	Vinogradova S.M. (Tigra1)	148	0	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
3	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
4	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
5	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
6	Sarkis'yan G. (gennadi_s)	14	187	53	2026-09-18 17:50:12	2026-09-19 18:45:38	1495
7	Krasovskij E.A. (pegoopik)	1	266	53	2026-09-18 15:39:39	2026-09-18 15:39:44	0
8	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		34075
9	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		48145
10	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		58653
11	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		88473
12	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		91365
13	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		100073
14	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		102841
15	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		152967
16	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		187397
17	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		221061
18	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		231289
19	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		232131
20	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		262843
21	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		356070
22	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		431910
23	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		643613
24	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		877736
25	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		889925
26	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1037778
27	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1039086
28	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1061836
29	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1171375
30	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1283440
31	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1283440
32	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1312596
33	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1339117
34	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1352749
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1418791
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1422105
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1424494
38	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1457159
39	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1509422
40	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1533998
41	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1850576
42	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1954565
43	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2050730
44	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2089938
45	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2206848
46	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2353429
47	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2605185
48	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2733537
49	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2867891
50	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2910078
51	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2913825
52	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3155891
53	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3223254
54	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3297584
55	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3362538
56	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3370509
57	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3410024
58	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3433751
59	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3744140
60	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3771422
61	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3779484
62	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3797768
63	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3841846
64	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3981821
65	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4080089
66	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4083270
67	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4225461
68	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4286008
69	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4339367
70	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4386832
71	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4478899
72	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4482808
73	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4482887
74	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4505516
75	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4519673
76	F (uff)	65	25	95	2018-01-22 15:57:03		4569609
77	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4621278
78	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4658748
79	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4660509
80	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4661577
81	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4699292
82	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4726409
83	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4759472
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4836117
85	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4882661
86	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4886811
87	F (uff)	65	25	185	2017-06-01 10:27:49		4908339
88	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4948212
89	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5010103
90	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5245006
91	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5280479
92	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5359702
93	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5490038
94	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5532137
95	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5701558
96	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5733245
97	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5767244
98	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5776605
99	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5802452
100	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5816756

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