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SQL exercises

October 24, 18:03 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: 13903

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	13	192	192	2026-10-17 13:29:17	2026-10-22 14:52:53	7284
2	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		7141
3	Krasovskij E.A. (pegoopik)	1	268	192	2026-10-16 18:51:16	2026-10-16 18:51:23	0
4	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
5	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		20222
6	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		35109
7	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		68272
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		82342
9	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		92850
10	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		122670
11	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		125562
12	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		134270
13	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		137038
14	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		187164
15	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		221594
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		255258
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		265486
18	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		266328
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		297040
20	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		390267
21	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		466107
22	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		677810
23	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		911933
24	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		924122
25	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1071975
26	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1073283
27	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1096033
28	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1205572
29	Slavutinskij V.V. (Vasilko)	459	0	5	2024-04-22 17:26:35		1317637
30	Slavutinskij V.V. (Vasilko)	459	0	7	2024-04-22 17:26:21		1317637
31	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1346793
32	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1373314
33	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1386946
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1452988
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1456302
36	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1458691
37	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1491356
38	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1543619
39	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1568195
40	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1884773
41	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1988762
42	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2084927
43	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2124135
44	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2241045
45	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2387626
46	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2639382
47	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2767734
48	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2902088
49	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2944275
50	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2948022
51	Kozharinov A. (bubala)	215	0	10	2020-09-30 09:55:07		3190088
52	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3257451
53	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3331781
54	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3396735
55	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3404706
56	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3444221
57	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3467948
58	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3778337
59	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3805619
60	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3813681
61	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3831965
62	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3876043
63	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4016018
64	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4114286
65	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4117467
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4259658
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4320205
68	Voevutskij S.A. (SergLK)	221	0	45	2018-07-01 13:19:14		4373564
69	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4421029
70	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4513096
71	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4517005
72	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4517084
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4539713
74	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4553870
75	F (uff)	66	23	95	2018-01-22 15:57:03		4603806
76	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4655475
77	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4692945
78	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4694706
79	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4695774
80	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4733489
81	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4760606
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4793669
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4870314
84	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4916858
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4921008
86	F (uff)	66	23	185	2017-06-01 10:27:49		4942536
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4982408
88	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5044300
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5279203
90	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5314676
91	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5393899
92	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5524235
93	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5566334
94	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5735755
95	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5767442
96	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5801441
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5810802
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5836649
99	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5850953
100	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5852638

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