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SQL exercises

June 15, 17:47 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: 15080

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	74	18	235	2025-06-15 10:19:27	2025-06-15 10:56:09	37
2	Dubinskij A.V. (_velial)	10	223	88	2025-06-14 13:07:56	2025-06-14 13:12:01	4
3	Dubinskij A.V. (_velial)	10	223	32	2025-06-14 11:33:39	2025-06-14 12:59:20	86
4	Makarov I.A. (_Bkmz_)	74	18	203	2025-06-14 11:13:55	2025-06-14 12:44:35	91
5	Makarov I.A. (_Bkmz_)	74	18	236	2025-06-14 10:28:33	2025-06-14 11:03:01	34
6	Dubinskij A.V. (_velial)	10	223	7	2025-06-13 21:25:31	2025-06-13 21:36:57	11
7	Dubinskij A.V. (_velial)	10	223	5	2025-06-13 20:49:56	2025-06-13 21:24:28	35
8	Makarov I.A. (_Bkmz_)	74	18	201	2025-06-13 10:21:16	2025-06-13 12:43:54	143
9	Makarov I.A. (_Bkmz_)	74	18	197	2025-06-12 10:17:44	2025-06-12 15:13:57	296
10	Sarkis'yan G. (gennadi_s)	28	94	172	2025-06-11 18:25:26		5722
11	Sarkis'yan G. (gennadi_s)	28	94	171	2025-05-26 13:59:15	2025-06-08 15:02:17	18783
12	Makarov I.A. (_Bkmz_)	74	18	192	2025-06-07 10:24:39	2025-06-07 11:11:34	47
13	Makarov I.A. (_Bkmz_)	74	18	256	2025-06-07 09:56:25	2025-06-07 10:16:52	20
14	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		85274
15	Fomichev A.V. (Fomichev)	195	0	7	2025-02-25 02:16:37		159330
16	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		167429
17	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		197677
18	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		209866
19	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		357718
20	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		359026
21	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		381777
22	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		409217
23	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		491316
24	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		603381
25	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		603381
26	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		632537
27	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		659057
28	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		672689
29	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		738732
30	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		742045
31	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		744435
32	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		777100
33	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		822276
34	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		829363
35	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		853939
36	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1098971
37	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1136527
38	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1170517
39	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1274505
40	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1370670
41	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1409879
42	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1526788
43	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1673369
44	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1787419
45	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1925126
46	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2053478
47	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2187832
48	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2230019
49	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2233766
50	Kozharinov A. (bubala)	205	0	10	2020-09-30 09:55:07		2475832
51	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2543195
52	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2617525
53	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2682479
54	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2690450
55	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2729964
56	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2753692
57	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3064081
58	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3091363
59	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3099425
60	Kordyum A. (alko58)	223	0	12	2019-07-12 15:58:52		3117708
61	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3161787
62	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3301762
63	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3400030
64	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3403211
65	Shindin A.V. (AlShin)	24	99	45	2018-09-18 15:45:28		3545402
66	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3605949
67	Voevutskij S.A. (SergLK)	210	0	45	2018-07-01 13:19:14		3659308
68	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3706773
69	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3798839
70	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3802749
71	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3802827
72	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3825457
73	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3839614
74	F (uff)	64	25	95	2018-01-22 15:57:03		3889550
75	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3941218
76	Kordyum A. (alko58)	223	0	101	2017-11-21 18:18:43		3978688
77	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		3980450
78	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3981518
79	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		4019233
80	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4046350
81	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4079413
82	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4156057
83	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4202602
84	Vorob'ev E.V. (Johnnymnemonic)	157	0	138	2017-06-16 09:15:49		4206751
85	F (uff)	64	25	185	2017-06-01 10:27:49		4228279
86	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4268152
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4330043
88	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4564947
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4600420
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4679643
91	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4809978
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4852078
93	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		5021498
94	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5053186
95	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		5087185
96	Fomichev A.V. (Fomichev)	195	0	101	2015-10-07 11:21:04		5096546
97	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5122392
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5136696
99	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5138382
100	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5149991

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