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SQL exercises

October 01, 02:52 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: 13882

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Kostomarov A.V. (al29)	5	247	53	2026-09-30 08:53:59		1078
2	Vinogradova S.M. (Tigra1)	148	0	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
3	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
4	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
5	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
6	Sarkis'yan G. (gennadi_s)	14	187	53	2026-09-18 17:50:12	2026-09-19 18:45:38	1495
7	Krasovskij E.A. (pegoopik)	1	266	53	2026-09-18 15:39:39	2026-09-18 15:39:44	0
8	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		34241
9	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		48310
10	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		58819
11	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		88638
12	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		91531
13	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		100239
14	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		103007
15	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		153133
16	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		187562
17	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		221227
18	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		231455
19	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		232297
20	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		263009
21	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		356236
22	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		432076
23	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		643779
24	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		877902
25	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		890091
26	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1037943
27	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1039251
28	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1062002
29	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1171541
30	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1283606
31	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1283606
32	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1312762
33	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1339282
34	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1352914
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1418957
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1422270
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1424660
38	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1457325
39	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1509587
40	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1534164
41	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1850742
42	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1954730
43	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2050895
44	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2090104
45	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2207013
46	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2353594
47	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2605351
48	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2733703
49	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2868057
50	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2910243
51	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2913991
52	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3156057
53	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3223420
54	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3297750
55	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3362704
56	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3370675
57	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3410189
58	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3433917
59	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3744306
60	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3771588
61	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3779650
62	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3797933
63	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3842012
64	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3981987
65	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4080255
66	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4083436
67	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4225627
68	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4286174
69	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4339533
70	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4386998
71	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4479064
72	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4482974
73	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4483052
74	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4505682
75	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4519839
76	F (uff)	65	25	95	2018-01-22 15:57:03		4569775
77	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4621443
78	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4658913
79	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4660675
80	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4661743
81	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4699458
82	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4726575
83	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4759638
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4836282
85	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4882827
86	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4886976
87	F (uff)	65	25	185	2017-06-01 10:27:49		4908504
88	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4948377
89	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5010268
90	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5245172
91	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5280645
92	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5359868
93	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5490203
94	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5532303
95	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5701723
96	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5733411
97	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5767410
98	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5776771
99	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5802617
100	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5816921

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