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SQL exercises

November 03, 03:24 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: 13928

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	13	193	209	2026-10-30 12:41:46	2026-10-30 14:06:57	85
2	Sarkis'yan G. (gennadi_s)	13	193	192	2026-10-17 13:29:17	2026-10-22 14:52:53	7284
3	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		20663
4	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		33744
5	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		48631
6	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		81794
7	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		95863
8	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		106372
9	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		136191
10	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		139083
11	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		147792
12	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		150560
13	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		200686
14	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		235115
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		268780
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		279008
17	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		279850
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		310561
19	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		403789
20	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		479628
21	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		691332
22	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		925455
23	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		937643
24	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1085496
25	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1086804
26	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1109555
27	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1219093
28	Slavutinskij V.V. (Vasilko)	459	0	5	2024-04-22 17:26:35		1331158
29	Slavutinskij V.V. (Vasilko)	459	0	7	2024-04-22 17:26:21		1331158
30	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1360314
31	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1386835
32	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1400467
33	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1466509
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1469823
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1472213
36	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1504878
37	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1557140
38	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1581717
39	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1898294
40	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		2002283
41	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2098448
42	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2137656
43	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2254566
44	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2401147
45	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2652904
46	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2781256
47	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2915610
48	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2957796
49	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2961544
50	Kozharinov A. (bubala)	215	0	10	2020-09-30 09:55:07		3203610
51	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3270973
52	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3345303
53	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3410257
54	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3418227
55	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3457742
56	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3481469
57	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3791859
58	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3819141
59	Romanov K.Yu. (kostik)	314	0	12	2019-07-25 08:42:10		3827203
60	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3845486
61	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3889564
62	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4029540
63	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4127807
64	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4130988
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4273179
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4333726
67	Voevutskij S.A. (SergLK)	222	0	45	2018-07-01 13:19:14		4387086
68	Zyrin V.E. (Vezyr)	555	0	29	2018-05-29 14:14:19		4434551
69	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4526617
70	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4530526
71	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4530605
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4553234
73	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4567391
74	F (uff)	66	23	95	2018-01-22 15:57:03		4617328
75	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4668996
76	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4706466
77	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4708227
78	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4709296
79	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4747010
80	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4774127
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4807190
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4883835
83	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4930380
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4934529
85	F (uff)	66	23	185	2017-06-01 10:27:49		4956057
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4995930
87	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5057821
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5292725
89	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5328197
90	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5407421
91	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5537756
92	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5579855
93	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5749276
94	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5780963
95	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5814962
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5824324
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5850170
98	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5864474
99	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5866160
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5877769

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