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SQL exercises

September 11, 08:28 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: 15197

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
2	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		5778
3	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20		6859
4	Vinogradova S.M. (Tigra1)	148	0	137	2026-08-30 14:15:52	2026-08-31 22:19:52	1924
5	Vinogradova S.M. (Tigra1)	148	0	136	2026-08-28 10:40:33	2026-08-29 10:38:18	1438
6	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		19847
7	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		30356
8	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		60175
9	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		63067
10	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		71776
11	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		74544
12	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		124670
13	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		159099
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		192764
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		202992
16	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		203834
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		234545
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		327773
19	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		403612
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		615316
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		849439
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		861627
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1009480
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1010788
25	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1033539
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1143077
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1255142
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1255142
29	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1284298
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1310819
31	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1324451
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1390493
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1393807
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1396197
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1428862
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1481124
37	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1505701
38	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1822278
39	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1926267
40	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2022432
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2061640
42	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2178550
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2325131
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2576888
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2705240
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2839594
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2881780
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2885528
49	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3127594
50	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3194957
51	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3269287
52	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3334241
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3342211
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3381726
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3405453
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3715843
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3743125
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3751187
59	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3769470
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3813548
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3953524
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4051791
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4054972
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4197163
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4257710
66	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4311070
67	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4358534
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4450601
69	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4454510
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4454589
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4477218
72	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4491375
73	F (uff)	65	25	95	2018-01-22 15:57:03		4541312
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4592980
75	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4630450
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4632211
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4633280
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4670994
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4698111
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4731174
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4807819
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4854364
83	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4858513
84	F (uff)	65	25	185	2017-06-01 10:27:49		4880041
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4919914
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4981805
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5216709
88	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5252181
89	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5331405
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5461740
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5503839
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5673260
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5704947
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5738946
95	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5748308
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5774154
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5788458
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5790144
99	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5801753
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5805324

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