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SQL exercises

February 17, 21:38 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: 15378

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Komarov A.N. (Shveda Saulya)	41	56	150	2023-11-22 17:11:28	2026-02-13 01:49:19	1171238
2	Sarkis'yan G. (gennadi_s)	16	149	194	2026-02-10 15:42:58		10435
3	Sarkis'yan G. (gennadi_s)	16	149	193	2026-02-02 14:48:13	2026-02-06 14:23:09	5735
4	Komarov A.N. (Shveda Saulya)	41	56	149	2023-05-14 13:36:07	2026-02-05 21:16:28	1437580
5	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		31922
6	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		107762
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		319465
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		441186
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		523340
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		553589
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		565777
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		713630
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		714938
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		737688
15	Komarov A.N. (Shveda Saulya)	41	56	157	2024-09-04 13:29:47		765129
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		847227
17	Slavutinskij V.V. (Vasilko)	452	0	5	2024-04-22 17:26:35		959292
18	Slavutinskij V.V. (Vasilko)	452	0	7	2024-04-22 17:26:21		959292
19	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		988448
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		1014969
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1028601
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1094643
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1097957
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1100346
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1133011
26	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1185274
27	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1209851
28	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1492438
29	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1526428
30	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1630417
31	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1726582
32	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1765790
33	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1882700
34	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2029281
35	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2281037
36	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2409389
37	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2543743
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2585930
39	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2589677
40	Kozharinov A. (bubala)	209	0	10	2020-09-30 09:55:07		2831743
41	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2899106
42	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2973436
43	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3038390
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3046361
45	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3085876
46	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3109603
47	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3419992
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3447274
49	Romanov K.Yu. (kostik)	309	0	12	2019-07-25 08:42:10		3455336
50	Kordyum A. (alko58)	226	0	12	2019-07-12 15:58:52		3473620
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3517698
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3657673
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3755941
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3759122
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3901313
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3961860
57	Voevutskij S.A. (SergLK)	215	0	45	2018-07-01 13:19:14		4015219
58	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4062684
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4154751
60	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4158660
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4158739
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4181368
63	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4195525
64	F (uff)	65	25	95	2018-01-22 15:57:03		4245461
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4297130
66	Kordyum A. (alko58)	226	0	101	2017-11-21 18:18:43		4334600
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4336361
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4337429
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4375144
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4402261
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4435324
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4511969
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4558514
74	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4562663
75	F (uff)	65	25	185	2017-06-01 10:27:49		4584191
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4624064
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4685955
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4920858
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4956331
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5035554
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5165890
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5207989
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5377410
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5409097
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5443096
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5452457
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5478304
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5492608
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5494294
90	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5505903
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5509474
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5512805
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5556491
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5557758
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5566319
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5576050
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5584676
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5815115
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5816742
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5864902

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