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SQL exercises

December 14, 22:35 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: 14884

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	94	9	62	2024-12-14 15:17:49	2024-12-14 17:47:41	150
2	Makarov I.A. (_Bkmz_)	94	9	57	2024-12-14 12:24:31	2024-12-14 13:23:57	59
3	Makarov I.A. (_Bkmz_)	94	9	37	2024-12-14 10:36:52	2024-12-14 11:48:31	72
4	Makarov I.A. (_Bkmz_)	94	9	58	2024-12-13 15:57:25	2024-12-13 16:48:47	51
5	Makarov I.A. (_Bkmz_)	94	9	47	2024-12-13 14:38:49	2024-12-13 15:18:17	39
6	Makarov I.A. (_Bkmz_)	94	9	41	2024-12-13 10:52:54	2024-12-13 12:15:47	83
7	Makarov I.A. (_Bkmz_)	94	9	52	2024-12-07 16:58:59	2024-12-07 17:21:14	22
8	Makarov I.A. (_Bkmz_)	94	9	45	2024-12-07 16:01:07	2024-12-07 16:17:54	17
9	Makarov I.A. (_Bkmz_)	94	9	44	2024-12-07 13:44:36	2024-12-07 14:09:15	25
10	Makarov I.A. (_Bkmz_)	94	9	40	2024-12-07 12:08:40	2024-12-07 13:20:20	72
11	Sarkis'yan G. (gennadi_s)	42	52	155	2024-11-25 14:46:03		27829
12	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		94487
13	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		95795
14	Frolov K.A. (Murderface_)	132	0	138	2024-09-23 14:49:59		118545
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		145985
16	Zajtsev V.S. (Sleeping)	20	112	164	2024-07-09 13:11:22		228084
17	Slavutinskij V.V. (Vasilko)	435	0	5	2024-04-22 17:26:35		340149
18	Slavutinskij V.V. (Vasilko)	435	0	7	2024-04-22 17:26:21		340149
19	Williams B. (BW)	33	66	141	2024-04-02 11:30:28		369305
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		395826
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		409457
22	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	305	2024-01-19 17:35:31		475500
23	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	306	2024-01-17 10:21:39		478814
24	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	71	2024-01-15 18:32:03		481203
25	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		513868
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		559044
27	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		566131
28	Rudikov E. (cubie)	133	0	138	2023-10-31 17:27:54		590707
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		835739
30	Zajtsev V.S. (Sleeping)	20	112	150	2023-04-18 11:40:16		873295
31	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		907285
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1011274
33	Koptel'tsev V. (selber)	24	97	237	2022-11-06 21:16:51		1107438
34	Borisenkov D.V. (xuser)	97	9	173	2022-10-10 15:48:20		1146647
35	Lukov D.R. (Gendalf)	236	0	90	2022-07-21 11:18:50		1263556
36	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1410138
37	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1524187
38	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1661894
39	Fedevych V.I. (labuch_fedev)	35	65	221	2021-07-20 17:09:05		1790246
40	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1924600
41	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		1966787
42	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		1970534
43	Kozharinov A. (bubala)	201	0	10	2020-09-30 09:55:07		2212600
44	Samarin A. (not.yet.sql.master)	136	0	112	2020-08-14 15:12:10		2279963
45	Koptel'tsev V. (selber)	24	97	259	2020-06-24 00:22:07		2354293
46	Samarin A. (not.yet.sql.master)	136	0	138	2020-05-09 21:48:04		2419247
47	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2427218
48	Fedevych V.I. (labuch_fedev)	35	65	226	2020-04-06 22:22:48		2466732
49	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2490460
50	Fokin A. (Vizitor )	43	52	217	2019-08-18 21:46:14		2800849
51	Bazavluk M. (DoNotLook)	95	9	141	2019-07-30 23:04:12		2828131
52	Romanov K.Yu. (kostik)	296	0	12	2019-07-25 08:42:10		2836193
53	Kordyum A. (alko58)	218	0	12	2019-07-12 15:58:52		2854476
54	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		2898555
55	Mal'tsev A.V. (Palkin)	110	8	218	2019-03-06 20:25:17		3038530
56	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3136798
57	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		3139979
58	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		3282170
59	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3342717
60	Voevutskij S.A. (SergLK)	205	0	45	2018-07-01 13:19:14		3396076
61	Zyrin V.E. (Vezyr)	523	0	29	2018-05-29 14:14:19		3443541
62	Chebykin D. (GriGrim)	37	62	228	2018-03-26 15:47:45		3535607
63	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3539517
64	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3539595
65	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3562225
66	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3576382
67	F (uff)	64	25	95	2018-01-22 15:57:03		3626318
68	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3677987
69	Kordyum A. (alko58)	218	0	101	2017-11-21 18:18:43		3715456
70	Zajtsev V.S. (Sleeping)	20	112	190	2017-11-20 12:57:31		3717218
71	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3718286
72	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3756001
73	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3783118
74	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		3816181
75	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3892826
76	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3939370
77	Vorob'ev E.V. (Johnnymnemonic)	154	0	138	2017-06-16 09:15:49		3943519
78	F (uff)	64	25	185	2017-06-01 10:27:49		3965047
79	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		4004920
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4066811
81	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4301715
82	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4337188
83	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4416411
84	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4546746
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4588846
86	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4758266
87	Maslyaev V.S. (Velmont)	88	11	170	2015-11-06 14:01:20		4789954
88	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		4823953
89	Fomichev A.V. (Fomichev)	192	0	101	2015-10-07 11:21:04		4833314
90	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4859160
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4873464
92	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		4875150
93	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4886760
94	Chebykin D. (GriGrim)	37	62	217	2015-08-28 21:04:30		4890331
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		4893662
96	Maslyaev V.S. (Velmont)	88	11	140	2015-07-27 05:27:50		4937347
97	Khromulyak O.M. (ChOleg)	119	5	150	2015-07-26 08:20:51		4938614
98	Chebykin D. (GriGrim)	37	62	216	2015-07-20 09:39:02		4947176
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		4956906
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		4965533

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