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SQL exercises

October 11, 06:37 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: 15170

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
2	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		132805
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		254525
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		328581
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		336679
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		366928
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		379116
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		526969
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		528277
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		551028
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		578468
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		660566
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		772631
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		772631
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		801787
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		828308
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		841940
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		907982
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		911296
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		913686
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		946350
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		991526
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		998613
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1023190
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1268221
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1305777
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1339767
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1443756
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1539921
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1579129
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1696039
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1842620
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1956670
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2094377
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2222728
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2357082
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2399269
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2403016
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2645082
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2712445
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2786775
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2851729
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2859700
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2899215
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2922942
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3233331
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3260613
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3268675
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3286959
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3331037
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3471012
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3569280
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3572461
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3714652
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3775199
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3828558
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3876023
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3968090
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3971999
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3972078
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3994707
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4008864
63	F (uff)	65	25	95	2018-01-22 15:57:03		4058801
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4110469
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4147939
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4149700
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4150768
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4188483
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4215600
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4248663
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4325308
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4371853
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4376002
74	F (uff)	65	25	185	2017-06-01 10:27:49		4397530
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4437403
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4499294
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4734197
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4769670
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4848893
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4979229
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5021328
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5190749
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5222436
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5256435
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5265796
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5291643
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5305947
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5307633
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5319242
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5322813
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5326144
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5369830
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5371097
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5379659
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5389389
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5398016
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5628454
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5630081
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5678241
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5706401

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