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SQL exercises

February 05, 23:02 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: 15388

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Komarov A.N. (Shveda Saulya)	43	52	149	2023-05-14 13:36:07	2026-02-05 21:16:28	1437580
2	Sarkis'yan G. (gennadi_s)	16	147	193	2026-02-02 14:48:13		4814
3	Sarkis'yan G. (gennadi_s)	16	147	192	2026-01-29 14:47:50	2026-01-29 16:40:41	113
4	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		14726
5	Sarkis'yan G. (gennadi_s)	16	147	191	2026-01-19 15:25:23	2026-01-25 17:31:40	8766
6	Fomichev A.V. (Fomichev)	196	0	7	2025-02-25 02:16:37	2026-01-24 00:54:53	479438
7	Lukov D.R. (Gendalf)	243	0	32	2025-12-05 01:36:21		90566
8	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		302270
9	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		423990
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		506144
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		536393
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		548581
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		696434
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		697742
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		720493
16	Komarov A.N. (Shveda Saulya)	43	52	157	2024-09-04 13:29:47		747933
17	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		830031
18	Slavutinskij V.V. (Vasilko)	451	0	5	2024-04-22 17:26:35		942096
19	Slavutinskij V.V. (Vasilko)	451	0	7	2024-04-22 17:26:21		942096
20	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		971252
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		997773
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1011405
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1077447
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1080761
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1083150
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1115815
27	Komarov A.N. (Shveda Saulya)	43	52	150	2023-11-22 17:11:28		1160991
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1168078
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1192655
30	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1475242
31	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1509232
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1613221
33	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1709386
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1748594
35	Lukov D.R. (Gendalf)	243	0	90	2022-07-21 11:18:50		1865504
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2012085
37	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2263841
38	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2392193
39	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2526547
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2568734
41	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2572481
42	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2814547
43	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2881910
44	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2956240
45	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3021194
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3029165
47	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3068680
48	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3092407
49	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3402796
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3430078
51	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3438140
52	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3456424
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3500502
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3640477
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3738745
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3741926
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3884117
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3944664
59	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3998023
60	Zyrin V.E. (Vezyr)	543	0	29	2018-05-29 14:14:19		4045488
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4137555
62	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4141464
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4141543
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4164172
65	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4178329
66	F (uff)	65	25	95	2018-01-22 15:57:03		4228265
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4279934
68	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4317404
69	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4319165
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4320233
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4357948
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4385065
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4418128
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4494773
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4541318
76	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4545467
77	F (uff)	65	25	185	2017-06-01 10:27:49		4566995
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4606868
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4668759
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4903662
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4939135
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5018358
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5148694
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5190793
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5360214
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5391901
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5425900
88	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5435261
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5461108
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5475412
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5477098
92	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5488707
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5492278
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5495609
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5539295
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5540562
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5549123
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5558854
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5567480
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5797919

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