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SQL exercises

July 09, 12:41 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: 15130

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	67	23	177	2025-07-06 09:38:39	2025-07-06 11:56:40	138
2	Makarov I.A. (_Bkmz_)	67	23	166	2025-07-05 10:06:56	2025-07-05 10:51:15	44
3	Sarkis'yan G. (gennadi_s)	24	99	175	2025-07-04 14:31:46		7090
4	Sarkis'yan G. (gennadi_s)	24	99	174	2025-06-29 14:46:07	2025-06-30 13:01:05	1335
5	Makarov I.A. (_Bkmz_)	67	23	170	2025-06-29 10:21:01	2025-06-29 12:50:43	150
6	Makarov I.A. (_Bkmz_)	67	23	204	2025-06-28 10:03:44	2025-06-28 12:34:50	151
7	Sarkis'yan G. (gennadi_s)	24	99	173	2025-06-22 15:29:39	2025-06-27 10:00:13	6871
8	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		119529
9	Fomichev A.V. (Fomichev)	195	0	7	2025-02-25 02:16:37		193585
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		201684
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		231932
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		244120
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		391973
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		393281
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		416032
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		443472
17	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		525570
18	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		637635
19	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		637635
20	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		666791
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		693312
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		706944
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		772986
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		776300
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		778690
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		811355
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		856530
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		863617
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		888194
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1133226
31	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1170781
32	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1204771
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1308760
34	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1404925
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1444133
36	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1561043
37	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1707624
38	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1821674
39	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1959381
40	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2087733
41	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2222087
42	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2264273
43	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2268021
44	Kozharinov A. (bubala)	206	0	10	2020-09-30 09:55:07		2510087
45	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2577450
46	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2651780
47	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2716734
48	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2724704
49	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2764219
50	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2787946
51	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3098335
52	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3125618
53	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3133680
54	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3151963
55	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3196041
56	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3336016
57	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3434284
58	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3437465
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3579656
60	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3640203
61	Voevutskij S.A. (SergLK)	211	0	45	2018-07-01 13:19:14		3693562
62	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3741027
63	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3833094
64	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3837003
65	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3837082
66	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3859711
67	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3873868
68	F (uff)	64	25	95	2018-01-22 15:57:03		3923805
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		3975473
70	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4012943
71	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		4014704
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4015772
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4053487
74	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4080604
75	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4113667
76	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4190312
77	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4236857
78	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4241006
79	F (uff)	64	25	185	2017-06-01 10:27:49		4262534
80	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4302407
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4364298
82	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4599201
83	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4634674
84	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4713898
85	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4844233
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4886332
87	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		5055753
88	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5087440
89	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		5121439
90	Fomichev A.V. (Fomichev)	195	0	101	2015-10-07 11:21:04		5130801
91	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5156647
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5170951
93	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5172637
94	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5184246
95	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5187817
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5191148
97	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5234834
98	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5236101
99	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5244663
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5254393

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