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SQL exercises

September 14, 11:38 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		10287
5	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		24356
6	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		34865
7	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		64685
8	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		67577
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		76285
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		79053
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		129179
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		163609
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		197273
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		207501
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		208343
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		239055
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		332282
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		408122
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		619825
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		853948
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		866137
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1013990
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1015298
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1038048
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1147587
26	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1259652
27	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1259652
28	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1288808
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1315329
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1328961
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1395003
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1398317
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1400706
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1433371
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1485634
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1510210
37	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1826788
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1930777
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2026942
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2066150
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2183060
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2329641
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2581397
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2709749
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2844103
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2886290
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2890037
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3132103
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3199466
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3273796
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3338750
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3346721
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3386236
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3409963
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3720352
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3747634
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3755696
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3773979
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3818058
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3958033
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4056301
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4059482
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4201673
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4262220
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4315579
66	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4363044
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4455111
68	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4459020
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4459099
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4481728
71	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4495885
72	F (uff)	65	25	95	2018-01-22 15:57:03		4545821
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4597490
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4634960
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4636721
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4637789
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4675504
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4702621
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4735684
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4812329
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4858873
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4863023
83	F (uff)	65	25	185	2017-06-01 10:27:49		4884551
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4924423
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4986315
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5221218
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5256691
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5335914
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5466250
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5508349
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5677769
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5709457
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5743456
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5752817
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5778664
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5792967
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5794653
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5806263
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5809834
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5813165

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