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SQL exercises

July 13, 18:44 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: 15105

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	62	26	162	2025-07-13 09:28:38	2025-07-13 11:51:03	142
2	Sarkis'yan G. (gennadi_s)	24	102	175	2025-07-04 14:31:46	2025-07-12 13:47:07	11475
3	Makarov I.A. (_Bkmz_)	62	26	209	2025-07-12 09:51:05	2025-07-12 11:17:41	87
4	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		3932
5	Makarov I.A. (_Bkmz_)	62	26	177	2025-07-06 09:38:39	2025-07-06 11:56:40	138
6	Makarov I.A. (_Bkmz_)	62	26	166	2025-07-05 10:06:56	2025-07-05 10:51:15	44
7	Sarkis'yan G. (gennadi_s)	24	102	174	2025-06-29 14:46:07	2025-06-30 13:01:05	1335
8	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		125652
9	Fomichev A.V. (Fomichev)	196	0	7	2025-02-25 02:16:37		199708
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		207807
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		238055
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		250243
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		398096
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		399404
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		422155
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		449595
17	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		531693
18	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		643758
19	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		643759
20	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		672914
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		699435
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		713067
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		779109
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		782423
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		784813
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		817478
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		862653
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		869740
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		894317
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1139349
31	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1176905
32	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1210894
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1314883
34	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1411048
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1450257
36	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1567166
37	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1713747
38	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1827797
39	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1965504
40	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2093856
41	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2228210
42	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2270396
43	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2274144
44	Kozharinov A. (bubala)	206	0	10	2020-09-30 09:55:07		2516210
45	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2583573
46	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2657903
47	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2722857
48	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2730827
49	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2770342
50	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2794069
51	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3104459
52	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3131741
53	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3139803
54	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3158086
55	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3202165
56	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3342140
57	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3440407
58	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3443588
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3585779
60	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3646326
61	Voevutskij S.A. (SergLK)	211	0	45	2018-07-01 13:19:14		3699686
62	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3747151
63	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3839217
64	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3843126
65	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3843205
66	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3865835
67	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3879991
68	F (uff)	65	25	95	2018-01-22 15:57:03		3929928
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		3981596
70	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4019066
71	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		4020827
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4021896
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4059611
74	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4086727
75	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4119790
76	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4196435
77	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4242980
78	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4247129
79	F (uff)	65	25	185	2017-06-01 10:27:49		4268657
80	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4308530
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4370421
82	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4605325
83	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4640797
84	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4720021
85	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4850356
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4892455
87	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5061876
88	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5093564
89	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5127562
90	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5136924
91	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5162770
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5177074
93	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5178760
94	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5190369
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5197271
96	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5240957
97	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5242224
98	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5250786
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5260516
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5269143

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