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SQL exercises

June 11, 01:18 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: 15116

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
2	Makarov I.A. (_Bkmz_)	55	35	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
3	Varenikov D.M. (Dmitriy Varenikov)	20	128	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
4	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
5	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
6	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
7	Makarov I.A. (_Bkmz_)	55	35	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
8	Vyazovetskov A.S. (alex_v)	7	241	157	2026-05-28 09:45:32	2026-05-29 14:38:42	1733
9	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		26189
10	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		26215
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		38153
12	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		46795
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		59854
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		70082
15	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		70924
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		101635
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		194863
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		270703
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		482406
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		604126
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		686281
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		716529
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		728717
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		876570
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		877878
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		900629
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1010168
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1122232
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1122233
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1151388
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1177909
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1191541
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1257583
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1260897
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1263287
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1295952
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1348214
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1372791
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1689369
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1793357
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1889522
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1928731
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2045640
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2192221
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2443978
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2572330
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2706684
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2748870
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2752618
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2994684
51	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3062047
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3136377
53	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3201331
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3209302
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3248816
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3272543
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3582933
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3610215
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3618277
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3636560
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3680639
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3820614
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3918882
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3922063
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4064253
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4124801
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4178160
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4225625
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4317691
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4321600
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4321679
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4344309
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4358465
74	F (uff)	65	25	95	2018-01-22 15:57:03		4408402
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4460070
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4497540
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4499301
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4500370
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4538085
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4565202
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4598264
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4674909
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4721454
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4725603
85	F (uff)	65	25	185	2017-06-01 10:27:49		4747131
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4787004
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4848895
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5083799
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5119272
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5198495
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5328830
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5370929
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5540350
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5572038
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5606037
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5615398
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5641244
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5655548
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5657234
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5668843

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