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SQL exercises

October 13, 15:42 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: 15184

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	182	2025-10-13 15:25:57		17
2	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
3	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		136230
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		257950
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		332006
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		340105
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		370353
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		382541
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		530394
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		531702
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		554453
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		581893
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		663991
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		776056
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		776056
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		805212
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		831733
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		845365
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		911407
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		914721
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		917111
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		949775
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		994951
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1002038
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1026615
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1271646
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1309202
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1343192
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1447181
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1543346
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1582554
32	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1699464
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1846045
34	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1960095
35	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2097802
36	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2226154
37	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2360507
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2402694
39	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2406441
40	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2648507
41	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2715870
42	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2790200
43	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2855155
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2863125
45	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2902640
46	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2926367
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3236756
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3264038
49	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3272100
50	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3290384
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3334462
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3474437
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3572705
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3575886
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3718077
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3778624
57	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3831983
58	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3879448
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3971515
60	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3975424
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3975503
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3998132
63	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4012289
64	F (uff)	65	25	95	2018-01-22 15:57:03		4062226
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4113894
66	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4151364
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4153125
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4154193
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4191908
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4219025
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4252088
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4328733
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4375278
74	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4379427
75	F (uff)	65	25	185	2017-06-01 10:27:49		4400955
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4440828
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4502719
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4737622
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4773095
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4852318
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4982654
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5024753
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5194174
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5225861
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5259860
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5269222
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5295068
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5309372
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5311058
90	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5322667
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5326238
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5329569
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5373255
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5374522
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5383084
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5392814
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5401441
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5631879
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5633506
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5681666

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