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SQL exercises

October 13, 03:15 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: 15179

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		135482
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		257203
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		331259
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		339357
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		369605
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		381794
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		529647
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		530955
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		553705
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		581146
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		663244
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		775309
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		775309
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		804465
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		830986
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		844618
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		910660
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		913974
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		916363
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		949028
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		994204
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1001291
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1025867
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1270899
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1308455
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1342445
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1446434
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1542599
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1581807
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1698717
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1845298
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1959347
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2097054
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2225406
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2359760
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2401947
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2405694
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2647760
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2715123
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2789453
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2854407
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2862378
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2901893
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2925620
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3236009
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3263291
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3271353
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3289637
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3333715
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3473690
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3571958
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3575139
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3717330
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3777877
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3831236
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3878701
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3970768
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3974677
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3974756
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3997385
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4011542
63	F (uff)	65	25	95	2018-01-22 15:57:03		4061478
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4113147
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4150617
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4152378
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4153446
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4191161
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4218278
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4251341
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4327986
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4374530
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4378680
74	F (uff)	65	25	185	2017-06-01 10:27:49		4400208
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4440080
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4501972
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4736875
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4772348
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4851571
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4981907
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5024006
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5193427
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5225114
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5259113
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5268474
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5294321
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5308625
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5310310
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5321920
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5325491
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5328822
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5372508
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5373775
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5382336
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5392066
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5400693
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5631132
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5632759
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5680919
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5709079

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