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SQL exercises

February 10, 13:31 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: 15368

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	16	149	193	2026-02-02 14:48:13	2026-02-06 14:23:09	5735
2	Komarov A.N. (Shveda Saulya)	43	52	149	2023-05-14 13:36:07	2026-02-05 21:16:28	1437580
3	Sarkis'yan G. (gennadi_s)	16	149	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		21356
5	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		97196
6	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		308899
7	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		430619
8	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		512774
9	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		543022
10	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		555210
11	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		703063
12	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		704371
13	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		727122
14	Komarov A.N. (Shveda Saulya)	43	52	157	2024-09-04 13:29:47		754562
15	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		836661
16	Slavutinskij V.V. (Vasilko)	451	0	5	2024-04-22 17:26:35		948725
17	Slavutinskij V.V. (Vasilko)	451	0	7	2024-04-22 17:26:21		948726
18	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		977881
19	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		1004402
20	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1018034
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1084076
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1087390
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1089780
24	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1122445
25	Komarov A.N. (Shveda Saulya)	43	52	150	2023-11-22 17:11:28		1167620
26	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1174707
27	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1199284
28	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1481872
29	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1515861
30	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1619850
31	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1716015
32	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1755224
33	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1872133
34	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2018714
35	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2270471
36	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2398823
37	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2533177
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2575363
39	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2579111
40	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2821177
41	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2888540
42	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2962870
43	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3027824
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3035795
45	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3075309
46	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3099036
47	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3409426
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3436708
49	Romanov K.Yu. (kostik)	309	0	12	2019-07-25 08:42:10		3444770
50	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3463053
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3507132
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3647107
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3745375
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3748555
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3890746
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3951294
57	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		4004653
58	Zyrin V.E. (Vezyr)	543	0	29	2018-05-29 14:14:19		4052118
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4144184
60	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4148093
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4148172
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4170802
63	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4184958
64	F (uff)	65	25	95	2018-01-22 15:57:03		4234895
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4286563
66	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4324033
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4325794
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4326863
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4364578
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4391694
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4424757
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4501402
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4547947
74	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4552096
75	F (uff)	65	25	185	2017-06-01 10:27:49		4573624
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4613497
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4675388
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4910292
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4945765
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5024988
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5155323
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5197422
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5366843
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5398531
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5432529
86	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5441891
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5467737
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5482041
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5483727
90	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5495336
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5498907
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5502238
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5545924
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5547191
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5555753
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5565483
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5574110
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5804549
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5806175
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5854336

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