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SQL exercises

October 16, 01:37 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: 13896

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
2	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		7716
3	Sarkis'yan G. (gennadi_s)	14	188	208	2026-10-08 15:07:00	2026-10-10 12:57:58	2751
4	Safronov P.A. (Paulus73)	117	6	142	2026-10-08 11:19:23	2026-10-08 22:44:52	685
5	Safronov P.A. (Paulus73)	117	6	139	2026-10-08 10:01:07	2026-10-08 11:01:43	61
6	Safronov P.A. (Paulus73)	117	6	138	2026-10-06 09:41:15	2026-10-07 02:54:18	1033
7	Filippkin D.V. (_dimon_)	2	260	240	2026-10-05 14:13:38	2026-10-06 15:58:40	1545
8	Safronov P.A. (Paulus73)	117	6	53	2026-10-05 09:54:21	2026-10-05 12:48:36	174
9	Vinogradova S.M. (Tigra1)	125	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
10	Vinogradova S.M. (Tigra1)	125	4	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
11	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		22603
12	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		55766
13	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		69836
14	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		80344
15	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		110164
16	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		113056
17	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		121764
18	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		124532
19	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		174658
20	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		209088
21	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		242752
22	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		252980
23	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		253822
24	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		284534
25	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		377761
26	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		453601
27	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		665304
28	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		899427
29	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		911616
30	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1059469
31	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1060777
32	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1083527
33	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1193066
34	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1305131
35	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1305131
36	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1334287
37	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1360808
38	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1374440
39	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1440482
40	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1443796
41	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1446185
42	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1478850
43	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1531113
44	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1555689
45	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1872267
46	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1976256
47	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2072421
48	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2111629
49	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2228539
50	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2375120
51	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2626876
52	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2755228
53	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2889582
54	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2931769
55	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2935516
56	Kozharinov A. (bubala)	214	0	10	2020-09-30 09:55:07		3177582
57	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3244945
58	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3319275
59	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3384229
60	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3392200
61	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3431715
62	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3455442
63	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3765831
64	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3793113
65	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3801175
66	Kordyum A. (alko58)	232	0	12	2019-07-12 15:58:52		3819459
67	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3863537
68	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4003512
69	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4101780
70	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4104961
71	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4247152
72	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4307699
73	Voevutskij S.A. (SergLK)	220	0	45	2018-07-01 13:19:14		4361058
74	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4408523
75	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4500590
76	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4504499
77	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4504578
78	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4527207
79	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4541364
80	F (uff)	66	23	95	2018-01-22 15:57:03		4591300
81	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4642969
82	Kordyum A. (alko58)	232	0	101	2017-11-21 18:18:43		4680439
83	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4682200
84	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4683268
85	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4720983
86	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4748100
87	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4781163
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4857808
89	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4904352
90	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4908502
91	F (uff)	66	23	185	2017-06-01 10:27:49		4930030
92	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4969902
93	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5031794
94	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5266697
95	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5302170
96	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5381393
97	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5511729
98	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5553828
99	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5723249
100	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5754936

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