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SQL exercises

August 06, 01:53 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: 15149

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	15	178	204	2026-08-04 12:34:26	2026-08-04 13:41:32	67
2	Koptel'tsev V. (selber)	19	133	198	2026-07-12 02:54:38	2026-07-31 20:31:37	28417
3	Williams B. (BW)	35	67	252	2026-07-31 13:33:49		7940
4	Williams B. (BW)	35	67	236	2026-07-29 13:21:56	2026-07-31 13:32:08	2890
5	Vyazovetskov A.S. (alex_v)	6	245	181	2026-07-29 14:43:59	2026-07-30 18:38:40	1675
6	Williams B. (BW)	35	67	264	2026-07-29 13:21:27		10832
7	Williams B. (BW)	35	67	308	2026-07-23 14:59:30	2026-07-29 13:19:06	8540
8	Sarkis'yan G. (gennadi_s)	15	178	203	2026-07-28 14:11:50	2026-07-28 15:38:56	87
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		19541
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		22309
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		72435
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		106864
13	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		127469
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		140529
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		150757
16	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		151598
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		182310
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		275538
19	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		351377
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		563081
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		797204
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		809392
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		957245
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		958553
25	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		981304
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1090842
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1202907
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1202907
29	Williams B. (BW)	35	67	141	2024-04-02 11:30:28		1232063
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1258584
31	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1272216
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1338258
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1341572
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1343962
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1376627
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1428889
37	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1453466
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1770043
39	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1874032
40	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		1970197
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2009405
42	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2126315
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2272896
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2524653
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2653005
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2787359
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2829545
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2833293
49	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3075359
50	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3142722
51	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3217052
52	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3282006
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3289976
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3329491
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3353218
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3663608
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3690890
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3698952
59	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3717235
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3761313
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3901288
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3999556
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4002737
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4144928
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4205475
66	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4258835
67	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4306299
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4398366
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4402275
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4402354
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4424983
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4439140
73	F (uff)	65	25	95	2018-01-22 15:57:03		4489077
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4540745
75	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4578215
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4579976
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4581044
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4618759
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4645876
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4678939
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4755584
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4802129
83	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4806278
84	F (uff)	65	25	185	2017-06-01 10:27:49		4827806
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4867679
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4929570
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5164474
88	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5199946
89	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5279170
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5409505
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5451604
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5621025
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5652712
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5686711
95	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5696073
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5721919
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5736223
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5737909
99	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5749518
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5753089

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