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SQL exercises

July 27, 22:52 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	Filippkin D.V. (_dimon_)	3	259	264	2026-07-23 15:54:45	2026-07-23 15:55:46	1
2	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04	2026-07-23 15:27:06	747609
3	Williams B. (BW)	35	66	308	2026-07-23 14:59:30		6233
4	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		6399
5	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		9167
6	Sarkis'yan G. (gennadi_s)	15	175	202	2026-07-19 14:34:28	2026-07-20 18:03:08	1649
7	Krasovskij E.A. (pegoopik)	1	265	242	2026-07-18 10:53:25	2026-07-18 19:12:40	499
8	Sarkis'yan G. (gennadi_s)	15	175	242	2026-07-18 13:38:46	2026-07-18 13:39:00	0
9	Timofeeva E.V. (Umrikhina)	26	96	24	2026-07-15 10:55:13	2026-07-15 11:24:36	29
10	Safronov P.A. (Paulus73)	134	0	137	2026-07-13 10:19:08	2026-07-14 00:12:15	833
11	Koptel'tsev V. (selber)	19	130	198	2026-07-12 02:54:38		22798
12	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		59294
13	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		93723
14	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		114328
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		127387
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		137615
17	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		138457
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		169169
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		262396
20	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		338236
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		549940
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		784063
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		796251
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		944104
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		945412
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		968163
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1077701
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1189766
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1189766
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1218922
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1245443
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1259075
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1325117
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1328431
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1330820
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1363485
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1415748
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1440325
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1756902
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1860891
41	Koptel'tsev V. (selber)	19	130	237	2022-11-06 21:16:51		1957056
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1996264
43	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2113174
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2259755
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2511511
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2639863
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2774217
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2816404
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2820151
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3062217
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3129580
52	Koptel'tsev V. (selber)	19	130	259	2020-06-24 00:22:07		3203910
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3268864
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3276835
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3316350
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3340077
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3650466
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3677748
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3685810
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3704094
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3748172
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3888147
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3986415
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3989596
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4131787
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4192334
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4245693
68	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4293158
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4385225
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4389134
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4389213
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4411842
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4425999
74	F (uff)	65	25	95	2018-01-22 15:57:03		4475935
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4527604
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4565074
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4566835
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4567903
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4605618
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4632735
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4665798
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4742443
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4788988
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4793137
85	F (uff)	65	25	185	2017-06-01 10:27:49		4814665
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4854538
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4916429
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5151332
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5186805
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5266028
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5396364
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5438463
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5607884
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5639571
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5673570
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5682931
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5708778
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5723082
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5724768
100	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5736377

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