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SQL exercises

November 12, 06:46 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: 15250

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	127	185	2025-11-08 14:38:59	2025-11-10 12:02:03	2723
2	Sarkis'yan G. (gennadi_s)	19	127	184	2025-10-30 12:40:58	2025-11-07 11:56:37	11476
3	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		178893
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		300614
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		374670
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		382768
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		413016
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		425205
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		573058
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		574366
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		597116
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		624556
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		706655
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		818720
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		818720
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		847876
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		874397
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		888028
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		954071
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		957385
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		959774
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		992439
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1037615
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1044702
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1069278
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1314310
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1351866
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1385856
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1489845
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1586009
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1625218
32	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1742127
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1888709
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2140465
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2268817
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2403171
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2445358
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2449105
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2691171
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2758534
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2832864
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2897818
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2905789
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2945303
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2969031
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3279420
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3306702
48	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3314764
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3333047
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3377126
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3517101
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3615369
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3618550
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3760741
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3821288
56	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3874647
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3922112
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4014179
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4018088
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4018166
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4040796
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4054953
63	F (uff)	65	25	95	2018-01-22 15:57:03		4104889
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4156558
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4194028
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4195789
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4196857
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4234572
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4261689
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4294752
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4371397
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4417941
73	Vorob'ev E.V. (Johnnymnemonic)	160	0	138	2017-06-16 09:15:49		4422090
74	F (uff)	65	25	185	2017-06-01 10:27:49		4443618
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4483491
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4545382
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4780286
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4815759
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4894982
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5025318
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5067417
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5236837
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5268525
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5302524
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5311885
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5337731
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5352035
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5353721
89	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5365331
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5368902
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5372233
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5415918
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5417185
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5425747
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5435477
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5444104
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5674543
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5676170
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5724330
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5752490

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