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SQL exercises

March 15, 14:22 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: 14979

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Krasovskij E.A. (pegoopik)	3	256	234	2025-03-12 19:48:30	2025-03-13 00:22:46	274
2	Makarov I.A. (_Bkmz_)	93	9	120	2025-03-08 07:34:49	2025-03-08 18:15:24	641
3	Makarov I.A. (_Bkmz_)	93	9	119	2025-03-07 09:36:32	2025-03-07 23:21:45	825
4	Makarov I.A. (_Bkmz_)	93	9	122	2025-03-06 11:36:35	2025-03-06 22:54:05	678
5	Filippkin D.V. (_dimon_)	2	259	239	2025-03-03 16:11:39	2025-03-03 16:26:10	15
6	Koptel'tsev V. (selber)	23	103	217	2025-02-26 20:10:00		24132
7	Fomichev A.V. (Fomichev)	191	0	7	2025-02-25 02:16:37		26646
8	Filippkin D.V. (_dimon_)	2	259	263	2025-02-19 11:18:04		34744
9	Sarkis'yan G. (gennadi_s)	32	69	161	2025-02-16 16:50:58		38731
10	Chuvstvin M. (chuvstvinmaxim)	87	11	141	2025-01-29 11:09:56		64992
11	Chuvstvin M. (chuvstvinmaxim)	87	11	258	2025-01-21 00:01:28		77181
12	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		225034
13	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		226342
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		249092
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		276532
16	Zajtsev V.S. (Sleeping)	20	112	164	2024-07-09 13:11:22		358631
17	Slavutinskij V.V. (Vasilko)	437	0	5	2024-04-22 17:26:35		470696
18	Slavutinskij V.V. (Vasilko)	437	0	7	2024-04-22 17:26:21		470696
19	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		499852
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		526373
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		540004
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		606047
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		609361
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		611750
25	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		644415
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		689591
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		696678
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		721254
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		966286
30	Zajtsev V.S. (Sleeping)	20	112	150	2023-04-18 11:40:16		1003842
31	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1037832
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1141821
33	Koptel'tsev V. (selber)	23	103	237	2022-11-06 21:16:51		1237985
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1277194
35	Lukov D.R. (Gendalf)	237	0	90	2022-07-21 11:18:50		1394103
36	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1540685
37	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1654734
38	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1792441
39	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		1920793
40	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2055147
41	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2097334
42	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2101081
43	Kozharinov A. (bubala)	202	0	10	2020-09-30 09:55:07		2343147
44	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2410510
45	Koptel'tsev V. (selber)	23	103	259	2020-06-24 00:22:07		2484840
46	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2549794
47	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2557765
48	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2597279
49	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2621007
50	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		2931396
51	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		2958678
52	Romanov K.Yu. (kostik)	300	0	12	2019-07-25 08:42:10		2966740
53	Kordyum A. (alko58)	219	0	12	2019-07-12 15:58:52		2985023
54	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3029102
55	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3169077
56	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3267345
57	Grishunin M.F. (MikhailFG)	91	10	144	2018-12-26 09:36:27		3270526
58	Shindin A.V. (AlShin)	24	99	45	2018-09-18 15:45:28		3412717
59	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3473264
60	Voevutskij S.A. (SergLK)	206	0	45	2018-07-01 13:19:14		3526623
61	Zyrin V.E. (Vezyr)	530	0	29	2018-05-29 14:14:19		3574088
62	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3666154
63	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3670064
64	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3670142
65	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3692772
66	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3706929
67	F (uff)	64	25	95	2018-01-22 15:57:03		3756865
68	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3808534
69	Kordyum A. (alko58)	219	0	101	2017-11-21 18:18:43		3846004
70	Zajtsev V.S. (Sleeping)	20	112	190	2017-11-20 12:57:31		3847765
71	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3848833
72	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3886548
73	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3913665
74	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		3946728
75	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		4023373
76	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4069917
77	Vorob'ev E.V. (Johnnymnemonic)	154	0	138	2017-06-16 09:15:49		4074066
78	F (uff)	64	25	185	2017-06-01 10:27:49		4095594
79	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		4135467
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4197358
81	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4432262
82	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4467735
83	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4546958
84	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4677294
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4719393
86	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4888813
87	Maslyaev V.S. (Velmont)	89	11	170	2015-11-06 14:01:20		4920501
88	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		4954500
89	Fomichev A.V. (Fomichev)	191	0	101	2015-10-07 11:21:04		4963861
90	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4989707
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5004011
92	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5005697
93	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5017307
94	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5020878
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5024209
96	Maslyaev V.S. (Velmont)	89	11	140	2015-07-27 05:27:50		5067894
97	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5069161
98	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5077723
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5087453
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5096080

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