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SQL exercises

September 10, 09:21 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: 15170

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	184	207	2026-09-08 14:40:13		2561
2	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		4390
3	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20		5472
4	Vinogradova S.M. (Tigra1)	148	0	137	2026-08-30 14:15:52	2026-08-31 22:19:52	1924
5	Vinogradova S.M. (Tigra1)	148	0	136	2026-08-28 10:40:33	2026-08-29 10:38:18	1438
6	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		18460
7	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		28968
8	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		58788
9	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		61680
10	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		70388
11	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		73156
12	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		123283
13	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		157712
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		191376
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		201604
16	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		202446
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		233158
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		326385
19	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		402225
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		613929
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		848052
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		860240
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1008093
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1009401
25	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1032152
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1141690
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1253755
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1253755
29	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1282911
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1309432
31	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1323064
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1389106
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1392420
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1394809
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1427474
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1479737
37	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1504314
38	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1820891
39	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1924880
40	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2021045
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2060253
42	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2177163
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2323744
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2575500
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2703852
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2838206
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2880393
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2884140
49	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3126206
50	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3193569
51	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3267899
52	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3332853
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3340824
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3380339
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3404066
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3714455
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3741737
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3749799
59	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3768083
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3812161
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3952136
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4050404
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4053585
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4195776
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4256323
66	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4309682
67	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4357147
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4449214
69	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4453123
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4453202
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4475831
72	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4489988
73	F (uff)	65	25	95	2018-01-22 15:57:03		4539924
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4591593
75	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4629063
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4630824
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4631892
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4669607
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4696724
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4729787
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4806432
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4852977
83	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4857126
84	F (uff)	65	25	185	2017-06-01 10:27:49		4878654
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4918527
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4980418
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5215321
88	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5250794
89	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5330017
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5460353
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5502452
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5671873
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5703560
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5737559
95	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5746920
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5772767
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5787071
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5788757
99	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5800366
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5803937

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