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SQL exercises

November 28, 15:00 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: 15372

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	18	131	187	2025-11-21 15:27:25	2025-11-25 14:09:56	5683
2	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		202427
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		324148
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		398204
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		406302
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		436550
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		448739
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		596592
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		597900
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		620650
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		648091
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		730189
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		842254
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		842254
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		871410
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		897931
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		911563
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		977605
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		980919
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		983308
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1015973
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1061149
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1068236
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1092813
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1337844
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1375400
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1409390
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1513379
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1609544
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1648752
31	Lukov D.R. (Gendalf)	241	0	90	2022-07-21 11:18:50		1765662
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1912243
33	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2163999
34	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2292351
35	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2426705
36	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2468892
37	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2472639
38	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2714705
39	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2782068
40	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2856398
41	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2921352
42	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2929323
43	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2968838
44	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2992565
45	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3302954
46	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3330236
47	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3338298
48	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3356582
49	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3400660
50	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3540635
51	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3638903
52	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3642084
53	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3784275
54	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3844822
55	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3898181
56	Zyrin V.E. (Vezyr)	539	0	29	2018-05-29 14:14:19		3945646
57	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4037713
58	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4041622
59	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4041701
60	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4064330
61	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4078487
62	F (uff)	65	25	95	2018-01-22 15:57:03		4128423
63	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4180092
64	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4217562
65	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4219323
66	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4220391
67	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4258106
68	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4285223
69	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4318286
70	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4394931
71	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4441476
72	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4445625
73	F (uff)	65	25	185	2017-06-01 10:27:49		4467153
74	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4507026
75	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4568917
76	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4803820
77	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4839293
78	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4918516
79	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5048852
80	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5090951
81	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5260372
82	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5292059
83	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5326058
84	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5335419
85	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5361266
86	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5375570
87	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5377255
88	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5388865
89	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5392436
90	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5395767
91	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5439453
92	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5440720
93	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5449281
94	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5459011
95	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5467638
96	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5698077
97	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5699704
98	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5747864
99	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5776024
100	Fajnberg M.L. (burnall)	73	21	122	2014-10-31 12:46:14		5826374

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