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SQL exercises

September 04, 05:37 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: 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		9596
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	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		20105
7	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		49924
8	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		52816
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		61525
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		64293
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		114419
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		148848
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		182513
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		192741
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		193583
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		224294
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		317522
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		393361
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		605065
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		839188
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		851376
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		999229
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1000537
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1023288
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1132826
26	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1244891
27	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1244891
28	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1274047
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1300568
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1314200
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1380242
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1383556
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1385946
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1418611
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1470873
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1495450
37	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1812027
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1916016
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2012181
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2051389
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2168299
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2314880
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2566637
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2694989
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2829343
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2871529
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2875277
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3117343
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3184706
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3259036
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3323990
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3331960
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3371475
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3395202
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3705592
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3732874
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3740936
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3759219
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3803297
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3943273
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4041540
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4044721
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4186912
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4247459
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4300819
66	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4348284
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4440350
68	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4444259
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4444338
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4466967
71	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4481124
72	F (uff)	65	25	95	2018-01-22 15:57:03		4531061
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4582729
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4620199
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4621960
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4623029
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4660743
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4687860
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4720923
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4797568
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4844113
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4848262
83	F (uff)	65	25	185	2017-06-01 10:27:49		4869790
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4909663
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4971554
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5206458
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5241930
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5321154
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5451489
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5493588
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5663009
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5694696
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5728695
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5738057
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5763903
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5778207
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5779893
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5791502
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5795073
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5798404

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