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SQL exercises

September 27, 12:19 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: 13864

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
2	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
3	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
4	Sarkis'yan G. (gennadi_s)	14	187	53	2026-09-18 17:50:12	2026-09-19 18:45:38	1495
5	Krasovskij E.A. (pegoopik)	1	266	53	2026-09-18 15:39:39	2026-09-18 15:39:44	0
6	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		29049
7	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		43118
8	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		53627
9	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		83446
10	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		86338
11	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		95046
12	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		97814
13	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		147941
14	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		182370
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		216034
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		226262
17	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		227104
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		257816
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		351043
20	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		426883
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		638587
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		872710
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		884898
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1032751
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1034059
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1056810
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1166348
28	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1278413
29	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1278413
30	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1307569
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1334090
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1347722
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1413764
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1417078
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1419468
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1452132
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1504395
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1528972
39	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1845549
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1949538
41	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2045703
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2084911
43	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2201821
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2348402
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2600159
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2728511
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2862864
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2905051
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2908798
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3150865
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3218227
52	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3292558
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3357512
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3365482
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3404997
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3428724
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3739113
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3766395
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3774457
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3792741
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3836819
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3976794
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4075062
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4078243
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4220434
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4280981
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4334340
68	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4381805
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4473872
70	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4477781
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4477860
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4500489
73	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4514646
74	F (uff)	65	25	95	2018-01-22 15:57:03		4564583
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4616251
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4653721
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4655482
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4656550
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4694265
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4721382
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4754445
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4831090
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4877635
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4881784
85	F (uff)	65	25	185	2017-06-01 10:27:49		4903312
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4943185
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5005076
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5239979
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5275452
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5354676
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5485011
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5527110
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5696531
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5728218
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5762217
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5771579
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5797425
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5811729
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5813415
100	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5825024

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