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SQL exercises

September 19, 17:04 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: 15184

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	187	53	2026-09-18 17:50:12		1394
2	Krasovskij E.A. (pegoopik)	1	266	53	2026-09-18 15:39:39	2026-09-18 15:39:44	0
3	Krasovskij E.A. (pegoopik)	1	266	303	2026-09-11 20:13:12	2026-09-11 20:13:42	1
4	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20	2026-09-11 10:52:12	7003
5	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
6	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		17813
7	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		31883
8	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		42392
9	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		72211
10	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		75103
11	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		83811
12	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		86579
13	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		136706
14	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		171135
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		204799
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		215027
17	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		215869
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		246581
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		339808
20	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		415648
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		627352
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		861475
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		873663
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1021516
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1022824
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1045575
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1155113
28	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1267178
29	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1267178
30	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1296334
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1322855
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1336487
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1402529
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1405843
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1408233
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1440897
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1493160
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1517737
39	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1834314
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1938303
41	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2034468
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2073676
43	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2190586
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2337167
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2588924
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2717276
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2851629
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2893816
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2897563
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3139629
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3206992
52	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3281322
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3346277
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3354247
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3393762
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3417489
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3727878
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3755160
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3763222
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3781506
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3825584
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3965559
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4063827
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4067008
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4209199
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4269746
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4323105
68	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4370570
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4462637
70	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4466546
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4466625
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4489254
73	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4503411
74	F (uff)	65	25	95	2018-01-22 15:57:03		4553348
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4605016
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4642486
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4644247
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4645315
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4683030
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4710147
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4743210
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4819855
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4866400
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4870549
85	F (uff)	65	25	185	2017-06-01 10:27:49		4892077
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4931950
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4993841
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5228744
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5264217
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5343440
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5473776
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5515875
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5685296
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5716983
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5750982
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5760344
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5786190
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5800494
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5802180
100	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5813789

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