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SQL exercises

June 27, 03:55 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: 15112

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Williams B. (BW)	35	66	262	2025-04-17 12:32:37	2026-06-24 13:25:33	623573
2	Williams B. (BW)	35	66	24	2026-05-15 13:25:32	2026-06-22 22:34:12	55269
3	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		14957
4	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		49386
5	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		49412
6	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		69991
7	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		83051
8	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		93279
9	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		94121
10	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		124832
11	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		218060
12	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		293899
13	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		505603
14	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		709478
15	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		739726
16	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		751914
17	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		899767
18	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		901075
19	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		923826
20	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1033364
21	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1145429
22	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1145429
23	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1174585
24	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1201106
25	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1214738
26	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1280780
27	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1284094
28	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1286484
29	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1319149
30	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1371411
31	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1395988
32	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1712565
33	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1816554
34	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1912719
35	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1951927
36	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2068837
37	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2215418
38	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2467175
39	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2595527
40	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2729881
41	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2772067
42	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2775815
43	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		3017881
44	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3085244
45	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3159574
46	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3224528
47	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3232498
48	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3272013
49	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3295740
50	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3606130
51	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3633412
52	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3641474
53	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3659757
54	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3703835
55	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3843811
56	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3942078
57	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3945259
58	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4087450
59	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4147997
60	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4201357
61	Zyrin V.E. (Vezyr)	550	0	29	2018-05-29 14:14:19		4248821
62	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4340888
63	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4344797
64	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4344876
65	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4367505
66	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4381662
67	F (uff)	65	25	95	2018-01-22 15:57:03		4431599
68	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4483267
69	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4520737
70	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4522498
71	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4523567
72	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4561281
73	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4588398
74	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4621461
75	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4698106
76	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4744651
77	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4748800
78	F (uff)	65	25	185	2017-06-01 10:27:49		4770328
79	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4810201
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4872092
81	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5106996
82	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5142468
83	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5221692
84	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5352027
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5394126
86	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5563547
87	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5595234
88	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5629233
89	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5638595
90	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5664441
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5678745
92	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5680431
93	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5692040
94	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5695611
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5698942
96	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5742628
97	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5743895
98	Chebykin D. (GriGrim)	39	62	216	2015-07-20 09:39:02		5752457
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5762187
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5770814

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