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SQL exercises

September 16, 05:40 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		12810
5	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		26879
6	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		37388
7	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		67207
8	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		70099
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		78808
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		81576
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		131702
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		166131
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		199796
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		210024
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		210866
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		241577
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		334805
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		410644
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		622348
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		856471
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		868659
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1016512
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1017820
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1040571
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1150109
26	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1262174
27	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1262174
28	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1291330
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1317851
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1331483
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1397525
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1400839
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1403229
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1435894
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1488156
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1512733
37	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1829310
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1933299
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2029464
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2068673
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2185582
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2332163
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2583920
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2712272
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2846626
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2888812
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2892560
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3134626
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3201989
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3276319
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3341273
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3349243
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3388758
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3412485
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3722875
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3750157
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3758219
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3776502
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3820580
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3960556
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4058823
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4062004
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4204195
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4264742
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4318102
66	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4365567
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4457633
68	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4461542
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4461621
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4484250
71	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4498407
72	F (uff)	65	25	95	2018-01-22 15:57:03		4548344
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4600012
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4637482
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4639243
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4640312
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4678026
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4705143
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4738206
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4814851
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4861396
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4865545
83	F (uff)	65	25	185	2017-06-01 10:27:49		4887073
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4926946
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4988837
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5223741
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5259213
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5338437
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5468772
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5510871
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5680292
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5711980
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5745978
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5755340
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5781186
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5795490
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5797176
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5808785
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5812356
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5815687

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