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SQL exercises

March 14, 14:45 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: 15387

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		31542
3	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		67510
4	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		143349
5	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		355053
6	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		476773
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		558928
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		589176
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		601364
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		749217
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		750525
12	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		773276
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		882814
14	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		994879
15	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		994879
16	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1024035
17	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1050556
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1064188
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1130230
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1133544
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1135934
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1168599
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1220861
24	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1245438
25	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1528026
26	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1562015
27	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1666004
28	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1762169
29	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1801377
30	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1918287
31	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2064868
32	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2316625
33	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2444977
34	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2579331
35	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2621517
36	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2625265
37	Kozharinov A. (bubala)	210	0	10	2020-09-30 09:55:07		2867331
38	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2934694
39	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3009024
40	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3073978
41	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3081948
42	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3121463
43	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3145190
44	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3455580
45	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3482862
46	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3490924
47	Kordyum A. (alko58)	228	0	12	2019-07-12 15:58:52		3509207
48	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3553285
49	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3693261
50	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3791528
51	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3794709
52	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3936900
53	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3997447
54	Voevutskij S.A. (SergLK)	216	0	45	2018-07-01 13:19:14		4050807
55	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4098272
56	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4190338
57	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4194247
58	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4194326
59	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4216955
60	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4231112
61	F (uff)	65	25	95	2018-01-22 15:57:03		4281049
62	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4332717
63	Kordyum A. (alko58)	228	0	101	2017-11-21 18:18:43		4370187
64	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4371948
65	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4373017
66	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4410731
67	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4437848
68	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4470911
69	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4547556
70	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4594101
71	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4598250
72	F (uff)	65	25	185	2017-06-01 10:27:49		4619778
73	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4659651
74	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4721542
75	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4956446
76	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4991918
77	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5071142
78	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5201477
79	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5243576
80	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5412997
81	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5444684
82	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5478683
83	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5488045
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5513891
85	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5528195
86	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5529881
87	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5541490
88	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5545061
89	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5548392
90	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5592078
91	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5593345
92	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5601907
93	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5611637
94	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5620264
95	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5850703
96	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5852329
97	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5900490
98	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5928649
99	Fajnberg M.L. (burnall)	73	21	122	2014-10-31 12:46:14		5979000
100	Kabanets E.G. (azkaban)	94	9	209	2014-09-27 01:00:23		6028665

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