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SQL exercises

November 07, 02:09 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: 15273

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	124	184	2025-10-30 12:40:58		10889
2	Varenikov D.M. (Dmitriy Varenikov)	18	128	264	2025-10-27 23:48:59	2025-10-27 23:50:54	2
3	Varenikov D.M. (Dmitriy Varenikov)	18	128	308	2025-10-27 16:55:56	2025-10-27 23:31:04	395
4	Varenikov D.M. (Dmitriy Varenikov)	18	128	175	2022-01-21 11:28:01	2025-10-27 02:35:26	1979467
5	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		171417
6	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		293137
7	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		367193
8	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		375292
9	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		405540
10	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		417728
11	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		565581
12	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		566889
13	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		589640
14	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		617080
15	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		699179
16	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		811243
17	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		811244
18	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		840399
19	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		866920
20	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		880552
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		946594
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		949908
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		952298
24	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		984963
25	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1030138
26	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1037225
27	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1061802
28	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1306834
29	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1344390
30	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1378380
31	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1482368
32	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1578533
33	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1617742
34	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1734651
35	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1881232
36	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2132989
37	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2261341
38	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2395695
39	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2437881
40	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2441629
41	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2683695
42	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2751058
43	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2825388
44	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2890342
45	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2898313
46	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2937827
47	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2961554
48	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3271944
49	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3299226
50	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3307288
51	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3325571
52	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3369650
53	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3509625
54	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3607893
55	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3611074
56	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3753264
57	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3813812
58	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3867171
59	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3914636
60	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4006702
61	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4010611
62	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4010690
63	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4033320
64	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4047476
65	F (uff)	65	25	95	2018-01-22 15:57:03		4097413
66	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4149081
67	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4186551
68	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4188312
69	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4189381
70	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4227096
71	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4254213
72	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4287275
73	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4363920
74	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4410465
75	Vorob'ev E.V. (Johnnymnemonic)	160	0	138	2017-06-16 09:15:49		4414614
76	F (uff)	65	25	185	2017-06-01 10:27:49		4436142
77	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4476015
78	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4537906
79	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4772810
80	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4808283
81	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4887506
82	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5017841
83	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5059940
84	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5229361
85	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5261049
86	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5295048
87	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5304409
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5330255
89	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5344559
90	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5346245
91	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5357854
92	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5361425
93	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5364756
94	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5408442
95	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5409709
96	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5418271
97	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5428001
98	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5436628
99	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5667067
100	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5668693

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