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SQL exercises

September 14, 03:53 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: 15163

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		9823
5	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		23892
6	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		34401
7	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		64220
8	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		67112
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		75821
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		78588
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		128715
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		163144
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		196808
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		207036
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		207878
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		238590
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		331817
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		407657
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		619361
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		853484
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		865672
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1013525
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1014833
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1037584
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1147122
26	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1259187
27	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1259187
28	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1288343
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1314864
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1328496
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1394538
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1397852
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1400242
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1432906
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1485169
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1509746
37	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1826323
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1930312
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2026477
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2065685
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2182595
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2329176
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2580933
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2709285
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2843639
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2885825
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2889572
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3131639
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3199001
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3273332
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3338286
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3346256
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3385771
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3409498
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3719887
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3747169
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3755231
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3773515
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3817593
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3957568
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4055836
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4059017
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4201208
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4261755
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4315114
66	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4362579
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4454646
68	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4458555
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4458634
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4481263
71	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4495420
72	F (uff)	65	25	95	2018-01-22 15:57:03		4545357
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4597025
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4634495
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4636256
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4637324
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4675039
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4702156
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4735219
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4811864
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4858409
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4862558
83	F (uff)	65	25	185	2017-06-01 10:27:49		4884086
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4923959
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4985850
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5220753
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5256226
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5335450
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5465785
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5507884
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5677305
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5708992
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5742991
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5752353
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5778199
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5792503
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5794189
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5805798
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5809369
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5812700

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