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SQL exercises

August 25, 02:35 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: 15151

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	184	206	2026-08-15 14:26:50	2026-08-21 15:41:57	8715
2	Frolov K.A. (Murderface_)	135	0	24	2026-08-21 11:04:04	2026-08-21 11:17:39	14
3	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		5522
4	Komarov A.N. (Shveda Saulya)	35	68	160	2026-05-09 13:24:21	2026-08-20 17:24:55	148561
5	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		35341
6	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		38234
7	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		46942
8	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		49710
9	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		99836
10	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		134265
11	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		167930
12	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		178158
13	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		179000
14	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		209712
15	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		302939
16	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		378779
17	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		590482
18	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		824605
19	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		836794
20	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		984646
21	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		985955
22	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1008705
23	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1118244
24	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1230309
25	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1230309
26	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1259465
27	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1285985
28	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1299617
29	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1365660
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1368973
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1371363
32	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1404028
33	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1456291
34	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1480867
35	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1797445
36	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1901433
37	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		1997598
38	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2036807
39	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2153716
40	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2300297
41	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2552054
42	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2680406
43	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2814760
44	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2856947
45	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2860694
46	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3102760
47	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3170123
48	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3244453
49	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3309407
50	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3317378
51	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3356892
52	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3380620
53	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3691009
54	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3718291
55	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3726353
56	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3744636
57	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3788715
58	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3928690
59	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4026958
60	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4030139
61	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4172330
62	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4232877
63	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4286236
64	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4333701
65	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4425767
66	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4429677
67	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4429755
68	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4452385
69	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4466542
70	F (uff)	65	25	95	2018-01-22 15:57:03		4516478
71	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4568146
72	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4605616
73	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4607378
74	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4608446
75	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4646161
76	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4673278
77	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4706341
78	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4782986
79	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4829530
80	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4833679
81	F (uff)	65	25	185	2017-06-01 10:27:49		4855207
82	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4895080
83	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4956971
84	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5191875
85	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5227348
86	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5306571
87	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5436906
88	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5479006
89	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5648426
90	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5680114
91	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5714113
92	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5723474
93	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5749320
94	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5763624
95	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5765310
96	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5776920
97	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5780491
98	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5783822
99	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5827507
100	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5828774

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