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SQL exercises

September 03, 15:50 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: 15157

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vinogradova S.M. (Tigra1)	148	0	137	2026-08-30 14:15:52	2026-08-31 22:19:52	1924
2	Vinogradova S.M. (Tigra1)	148	0	136	2026-08-28 10:40:33	2026-08-29 10:38:18	1438
3	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		8769
4	Vinogradova S.M. (Tigra1)	148	0	135	2026-08-26 09:13:14	2026-08-26 13:14:03	241
5	Vinogradova S.M. (Tigra1)	148	0	134	2026-08-24 15:47:47	2026-08-24 21:53:04	365
6	Sarkis'yan G. (gennadi_s)	14	184	206	2026-08-15 14:26:50	2026-08-21 15:41:57	8715
7	Frolov K.A. (Murderface_)	135	0	24	2026-08-21 11:04:04	2026-08-21 11:17:39	14
8	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		19278
9	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		49097
10	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		51990
11	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		60698
12	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		63466
13	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		113592
14	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		148021
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		181686
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		191914
17	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		192756
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		223468
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		316695
20	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		392535
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		604238
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		838361
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		850550
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		998402
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		999710
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1022461
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1132000
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1244064
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1244065
30	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1273221
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1299741
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1313373
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1379415
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1382729
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1385119
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1417784
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1470046
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1494623
39	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1811201
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1915189
41	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2011354
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2050563
43	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2167472
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2314053
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2565810
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2694162
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2828516
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2870702
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2874450
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3116516
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3183879
52	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3258209
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3323163
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3331134
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3370648
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3394375
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3704765
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3732047
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3740109
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3758392
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3802471
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3942446
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4040714
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4043895
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4186086
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4246633
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4299992
68	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4347457
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4439523
70	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4443432
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4443511
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4466141
73	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4480297
74	F (uff)	65	25	95	2018-01-22 15:57:03		4530234
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4581902
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4619372
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4621133
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4622202
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4659917
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4687034
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4720096
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4796741
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4843286
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4847435
85	F (uff)	65	25	185	2017-06-01 10:27:49		4868963
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4908836
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4970727
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5205631
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5241104
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5320327
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5450662
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5492761
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5662182
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5693870
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5727869
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5737230
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5763076
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5777380
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5779066
100	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5790675

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