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SQL exercises

March 12, 06:55 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: 15407

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Koptel'tsev V. (selber)	20	122	179	2026-02-21 19:34:16	2026-03-09 22:57:01	23243
2	Polyakov V.M. (rock_4)	133	0	138	2026-02-20 17:03:21		28192
3	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		64159
4	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		139999
5	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		351702
6	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		473422
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		555577
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		585825
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		598014
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		745866
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		747174
12	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		769925
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		879464
14	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		991529
15	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		991529
16	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1020685
17	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1047205
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1060837
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1126880
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1130193
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1132583
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1165248
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1217510
24	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1242087
25	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1524675
26	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1558665
27	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1662653
28	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1758818
29	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1798027
30	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1914936
31	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2061517
32	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2313274
33	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2441626
34	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2575980
35	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2618166
36	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2621914
37	Kozharinov A. (bubala)	210	0	10	2020-09-30 09:55:07		2863980
38	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2931343
39	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3005673
40	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3070627
41	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3078598
42	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3118112
43	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3141840
44	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3452229
45	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3479511
46	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3487573
47	Kordyum A. (alko58)	228	0	12	2019-07-12 15:58:52		3505856
48	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3549935
49	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3689910
50	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3788178
51	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3791359
52	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3933550
53	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3994097
54	Voevutskij S.A. (SergLK)	216	0	45	2018-07-01 13:19:14		4047456
55	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4094921
56	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4186987
57	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4190897
58	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4190975
59	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4213605
60	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4227762
61	F (uff)	65	25	95	2018-01-22 15:57:03		4277698
62	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4329366
63	Kordyum A. (alko58)	228	0	101	2017-11-21 18:18:43		4366836
64	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4368598
65	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4369666
66	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4407381
67	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4434498
68	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4467561
69	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4544205
70	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4590750
71	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4594899
72	F (uff)	65	25	185	2017-06-01 10:27:49		4616427
73	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4656300
74	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4718191
75	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4953095
76	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4988568
77	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5067791
78	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5198126
79	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5240226
80	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5409646
81	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5441334
82	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5475333
83	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5484694
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5510540
85	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5524844
86	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5526530
87	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5538139
88	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5541711
89	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5545042
90	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5588727
91	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5589994
92	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5598556
93	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5608286
94	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5616913
95	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5847352
96	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5848978
97	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5897139
98	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5925299
99	Fajnberg M.L. (burnall)	73	21	122	2014-10-31 12:46:14		5975649
100	Kabanets E.G. (azkaban)	94	9	209	2014-09-27 01:00:23		6025315

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