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SQL exercises

June 13, 20:20 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: 15105

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	49	40	143	2026-06-12 10:09:54	2026-06-13 03:07:28	1018
2	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
3	Makarov I.A. (_Bkmz_)	49	40	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
4	Varenikov D.M. (Dmitriy Varenikov)	20	129	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
5	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
6	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
7	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
8	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		30211
9	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		30237
10	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		42175
11	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		50816
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		63875
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		74103
14	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		74945
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		105657
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		198884
17	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		274724
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		486427
19	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		608148
20	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		690302
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		720550
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		732739
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		880592
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		881900
25	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		904650
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1014189
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1126254
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1126254
29	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1155410
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1181931
31	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1195563
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1261605
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1264919
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1267308
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1299973
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1352236
37	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1376813
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1693390
39	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1797379
40	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1893544
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1932752
42	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2049662
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2196243
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2447999
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2576351
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2710705
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2752892
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2756639
49	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2998705
50	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3066068
51	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3140398
52	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3205352
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3213323
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3252838
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3276565
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3586954
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3614236
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3622298
59	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3640582
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3684660
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3824635
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3922903
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3926084
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4068275
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4128822
66	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4182181
67	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4229646
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4321713
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4325622
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4325701
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4348330
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4362487
73	F (uff)	65	25	95	2018-01-22 15:57:03		4412423
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4464092
75	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4501562
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4503323
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4504391
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4542106
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4569223
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4602286
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4678931
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4725476
83	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4729625
84	F (uff)	65	25	185	2017-06-01 10:27:49		4751153
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4791026
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4852917
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5087820
88	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5123293
89	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5202516
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5332852
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5374951
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5544372
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5576059
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5610058
95	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5619419
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5645266
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5659570
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5661255
99	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5672865
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5676436

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