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SQL exercises

October 12, 09:53 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: 15173

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
2	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		134441
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		256161
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		330217
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		338316
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		368564
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		380752
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		528605
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		529913
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		552664
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		580104
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		662203
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		774267
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		774268
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		803423
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		829944
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		843576
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		909618
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		912932
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		915322
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		947987
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		993162
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1000249
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1024826
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1269858
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1307414
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1341403
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1445392
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1541557
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1580766
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1697675
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1844256
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1958306
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2096013
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2224365
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2358719
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2400905
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2404653
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2646719
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2714082
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2788412
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2853366
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2861336
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2900851
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2924578
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3234968
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3262250
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3270312
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3288595
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3332674
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3472649
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3570916
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3574097
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3716288
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3776836
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3830195
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3877660
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3969726
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3973635
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3973714
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3996344
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4010500
63	F (uff)	65	25	95	2018-01-22 15:57:03		4060437
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4112105
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4149575
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4151336
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4152405
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4190120
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4217236
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4250299
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4326944
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4373489
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4377638
74	F (uff)	65	25	185	2017-06-01 10:27:49		4399166
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4439039
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4500930
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4735834
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4771307
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4850530
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4980865
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5022964
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5192385
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5224073
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5258071
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5267433
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5293279
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5307583
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5309269
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5320878
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5324449
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5327780
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5371466
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5372733
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5381295
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5391025
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5399652
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5630091
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5631717
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5679878
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5708037

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