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SQL exercises

October 14, 06:50 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: 15190

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		924
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		137137
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		258858
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		332914
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		341012
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		371260
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		383449
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		531302
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		532610
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		555360
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		582801
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		664899
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		776964
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		776964
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		806120
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		832641
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		846272
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		912315
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		915629
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		918018
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		950683
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		995859
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1002946
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1027522
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1272554
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1310110
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1344100
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1448089
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1544253
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1583462
32	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1700371
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1846953
34	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1961002
35	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2098709
36	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2227061
37	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2361415
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2403602
39	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2407349
40	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2649415
41	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2716778
42	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2791108
43	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2856062
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2864033
45	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2903547
46	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2927275
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3237664
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3264946
49	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3273008
50	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3291291
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3335370
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3475345
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3573613
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3576794
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3718985
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3779532
57	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3832891
58	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3880356
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3972423
60	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3976332
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3976410
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3999040
63	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4013197
64	F (uff)	65	25	95	2018-01-22 15:57:03		4063133
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4114802
66	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4152272
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4154033
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4155101
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4192816
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4219933
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4252996
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4329641
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4376185
74	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4380334
75	F (uff)	65	25	185	2017-06-01 10:27:49		4401862
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4441735
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4503626
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4738530
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4774003
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4853226
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4983562
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5025661
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5195081
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5226769
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5260768
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5270129
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5295975
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5310279
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5311965
90	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5323575
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5327146
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5330477
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5374162
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5375429
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5383991
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5393721
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5402348
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5632787
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5634414
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5682574

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