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SQL exercises

July 28, 15:20 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: 15138

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	15	175	203	2026-07-28 14:11:50		68
2	Filippkin D.V. (_dimon_)	3	259	264	2026-07-23 15:54:45	2026-07-23 15:55:46	1
3	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04	2026-07-23 15:27:06	747609
4	Williams B. (BW)	35	66	308	2026-07-23 14:59:30		7221
5	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		7387
6	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		10155
7	Sarkis'yan G. (gennadi_s)	15	175	202	2026-07-19 14:34:28	2026-07-20 18:03:08	1649
8	Krasovskij E.A. (pegoopik)	1	265	242	2026-07-18 10:53:25	2026-07-18 19:12:40	499
9	Sarkis'yan G. (gennadi_s)	15	175	242	2026-07-18 13:38:46	2026-07-18 13:39:00	0
10	Timofeeva E.V. (Umrikhina)	26	96	24	2026-07-15 10:55:13	2026-07-15 11:24:36	29
11	Koptel'tsev V. (selber)	19	130	198	2026-07-12 02:54:38		23785
12	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		60281
13	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		94710
14	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		115316
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		128375
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		138603
17	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		139445
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		170157
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		263384
20	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		339224
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		550927
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		785050
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		797239
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		945091
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		946399
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		969150
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1078689
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1190754
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1190754
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1219910
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1246430
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1260062
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1326105
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1329418
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1331808
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1364473
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1416736
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1441312
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1757890
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1861878
41	Koptel'tsev V. (selber)	19	130	237	2022-11-06 21:16:51		1958043
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1997252
43	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2114161
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2260742
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2512499
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2640851
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2775205
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2817392
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2821139
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3063205
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3130568
52	Koptel'tsev V. (selber)	19	130	259	2020-06-24 00:22:07		3204898
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3269852
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3277823
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3317337
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3341065
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3651454
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3678736
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3686798
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3705081
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3749160
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3889135
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3987403
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3990584
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4132775
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4193322
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4246681
68	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4294146
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4386212
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4390122
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4390200
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4412830
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4426987
74	F (uff)	65	25	95	2018-01-22 15:57:03		4476923
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4528591
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4566061
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4567823
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4568891
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4606606
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4633723
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4666786
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4743430
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4789975
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4794124
85	F (uff)	65	25	185	2017-06-01 10:27:49		4815652
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4855525
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4917416
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5152320
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5187793
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5267016
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5397351
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5439451
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5608871
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5640559
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5674558
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5683919
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5709765
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5724069
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5725755
100	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5737364

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