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SQL exercises

November 04, 21:53 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: 15237

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	124	184	2025-10-30 12:40:58		7752
2	Varenikov D.M. (Dmitriy Varenikov)	18	128	264	2025-10-27 23:48:59	2025-10-27 23:50:54	2
3	Varenikov D.M. (Dmitriy Varenikov)	18	128	308	2025-10-27 16:55:56	2025-10-27 23:31:04	395
4	Varenikov D.M. (Dmitriy Varenikov)	18	128	175	2022-01-21 11:28:01	2025-10-27 02:35:26	1979467
5	Sarkis'yan G. (gennadi_s)	19	124	183	2025-10-23 18:10:46	2025-10-24 17:33:49	1403
6	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		168280
7	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		290000
8	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		364056
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		372155
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		402403
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		414592
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		562444
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		563752
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		586503
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		613943
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		696042
17	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		808106
18	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		808107
19	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		837263
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		863783
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		877415
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		943458
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		946771
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		949161
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		981826
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1027002
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1034088
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1058665
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1303697
30	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1341253
31	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1375243
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1479231
33	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1575396
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1614605
35	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1731514
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1878095
37	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2129852
38	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2258204
39	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2392558
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2434744
41	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2438492
42	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2680558
43	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2747921
44	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2822251
45	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2887205
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2895176
47	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2934690
48	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2958417
49	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3268807
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3296089
51	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3304151
52	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3322434
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3366513
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3506488
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3604756
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3607937
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3750128
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3810675
59	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3864034
60	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3911499
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4003565
62	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4007474
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4007553
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4030183
65	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4044340
66	F (uff)	65	25	95	2018-01-22 15:57:03		4094276
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4145944
68	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4183414
69	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4185176
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4186244
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4223959
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4251076
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4284138
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4360783
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4407328
76	Vorob'ev E.V. (Johnnymnemonic)	160	0	138	2017-06-16 09:15:49		4411477
77	F (uff)	65	25	185	2017-06-01 10:27:49		4433005
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4472878
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4534769
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4769673
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4805146
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4884369
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5014704
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5056804
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5226224
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5257912
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5291911
88	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5301272
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5327118
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5341422
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5343108
92	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5354717
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5358289
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5361620
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5405305
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5406572
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5415134
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5424864
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5433491
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5663930

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