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SQL exercises

May 15, 03:18 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: 15098

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	11	221	220	2026-05-13 11:51:48	2026-05-14 20:04:14	1932
2	Vyazovetskov A.S. (alex_v)	11	221	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
3	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		8034
4	Vyazovetskov A.S. (alex_v)	11	221	217	2026-05-08 10:20:20	2026-05-08 13:08:42	168
5	Vyazovetskov A.S. (alex_v)	11	221	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
6	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
7	Vyazovetskov A.S. (alex_v)	11	221	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
8	Vyazovetskov A.S. (alex_v)	11	221	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
9	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
10	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
11	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		21093
12	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		31321
13	Vyazovetskov A.S. (alex_v)	11	221	264	2026-04-22 19:15:17		32163
14	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		62875
15	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		156102
16	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		231942
17	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		443646
18	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		565366
19	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		647521
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		677769
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		689957
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		837810
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		839118
24	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		861869
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		971407
26	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1083472
27	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1083472
28	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1112628
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1139149
30	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1152781
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1218823
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1222137
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1224527
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1257191
35	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1309454
36	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1334031
37	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1650608
38	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1754597
39	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1850762
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1889970
41	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2006880
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2153461
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2405218
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2533570
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2667924
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2710110
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2713857
48	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2955924
49	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3023286
50	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3097617
51	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3162571
52	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3170541
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3210056
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3233783
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3544172
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3571454
57	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3579516
58	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3597800
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3641878
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3781853
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3880121
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3883302
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4025493
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4086040
65	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4139399
66	Zyrin V.E. (Vezyr)	548	0	29	2018-05-29 14:14:19		4186864
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4278931
68	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4282840
69	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4282919
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4305548
71	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4319705
72	F (uff)	65	25	95	2018-01-22 15:57:03		4369642
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4421310
74	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4458780
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4460541
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4461609
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4499324
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4526441
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4559504
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4636149
81	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4682694
82	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4686843
83	F (uff)	65	25	185	2017-06-01 10:27:49		4708371
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4748244
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4810135
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5045038
87	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5080511
88	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5159735
89	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5290070
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5332169
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5501590
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5533277
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5567276
94	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5576638
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5602484
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5616788
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5618474
98	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5630083
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5633654
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5636985

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