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SQL exercises

November 09, 01:48 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: 15210

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	126	185	2025-11-08 14:38:59		669
2	Sarkis'yan G. (gennadi_s)	19	126	184	2025-10-30 12:40:58	2025-11-07 11:56:37	11476
3	Varenikov D.M. (Dmitriy Varenikov)	18	128	264	2025-10-27 23:48:59	2025-10-27 23:50:54	2
4	Varenikov D.M. (Dmitriy Varenikov)	18	128	308	2025-10-27 16:55:56	2025-10-27 23:31:04	395
5	Varenikov D.M. (Dmitriy Varenikov)	18	128	175	2022-01-21 11:28:01	2025-10-27 02:35:26	1979467
6	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		174275
7	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		295996
8	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		370052
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		378150
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		408398
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		420587
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		568439
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		569748
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		592498
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		619938
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		702037
17	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		814102
18	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		814102
19	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		843258
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		869778
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		883410
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		949453
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		952766
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		955156
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		987821
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1032997
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1040084
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1064660
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1309692
30	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1347248
31	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1381238
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1485226
33	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1581391
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1620600
35	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1737509
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1884090
37	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2135847
38	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2264199
39	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2398553
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2440740
41	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2444487
42	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2686553
43	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2753916
44	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2828246
45	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2893200
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2901171
47	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2940685
48	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2964413
49	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3274802
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3302084
51	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3310146
52	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3328429
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3372508
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3512483
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3610751
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3613932
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3756123
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3816670
59	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3870029
60	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3917494
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4009560
62	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4013470
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4013548
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4036178
65	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4050335
66	F (uff)	65	25	95	2018-01-22 15:57:03		4100271
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4151939
68	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4189409
69	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4191171
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4192239
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4229954
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4257071
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4290134
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4366779
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4413323
76	Vorob'ev E.V. (Johnnymnemonic)	160	0	138	2017-06-16 09:15:49		4417472
77	F (uff)	65	25	185	2017-06-01 10:27:49		4439000
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4478873
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4540764
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4775668
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4811141
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4890364
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5020699
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5062799
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5232219
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5263907
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5297906
88	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5307267
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5333113
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5347417
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5349103
92	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5360713
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5364284
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5367615
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5411300
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5412567
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5421129
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5430859
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5439486
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5669925

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