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SQL exercises

September 15, 23:18 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: 15171

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Krasovskij E.A. (pegoopik)	1	266	303	2026-09-11 20:13:12	2026-09-11 20:13:42	1
2	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20	2026-09-11 10:52:12	7003
3	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
4	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		12427
5	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		26496
6	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		37005
7	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		66824
8	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		69717
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		78425
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		81193
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		131319
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		165748
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		199413
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		209641
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		210483
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		241195
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		334422
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		410262
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		621965
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		856088
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		868277
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1016129
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1017438
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1040188
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1149727
26	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1261792
27	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1261792
28	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1290948
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1317468
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1331100
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1397143
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1400456
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1402846
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1435511
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1487774
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1512350
37	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1828928
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1932916
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2029081
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2068290
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2185199
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2331780
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2583537
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2711889
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2846243
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2888430
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2892177
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3134243
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3201606
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3275936
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3340890
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3348861
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3388375
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3412103
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3722492
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3749774
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3757836
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3776119
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3820198
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3960173
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4058441
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4061622
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4203813
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4264360
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4317719
66	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4365184
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4457250
68	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4461160
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4461238
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4483868
71	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4498025
72	F (uff)	65	25	95	2018-01-22 15:57:03		4547961
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4599629
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4637099
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4638861
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4639929
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4677644
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4704761
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4737824
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4814469
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4861013
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4865162
83	F (uff)	65	25	185	2017-06-01 10:27:49		4886690
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4926563
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4988454
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5223358
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5258831
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5338054
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5468389
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5510489
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5679909
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5711597
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5745596
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5754957
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5780803
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5795107
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5796793
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5808403
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5811974
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5815305

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