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SQL exercises

February 07, 15:22 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: 15355

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		17146
5	Sarkis'yan G. (gennadi_s)	16	149	191	2026-01-19 15:25:23	2026-01-25 17:31:40	8766
6	Lukov D.R. (Gendalf)	243	0	32	2025-12-05 01:36:21		92986
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		304689
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		426410
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		508564
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		538812
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		551001
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		698853
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		700162
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		722912
15	Komarov A.N. (Shveda Saulya)	43	52	157	2024-09-04 13:29:47		750352
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		832451
17	Slavutinskij V.V. (Vasilko)	451	0	5	2024-04-22 17:26:35		944516
18	Slavutinskij V.V. (Vasilko)	451	0	7	2024-04-22 17:26:21		944516
19	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		973672
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		1000192
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1013824
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1079867
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1083180
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1085570
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1118235
26	Komarov A.N. (Shveda Saulya)	43	52	150	2023-11-22 17:11:28		1163411
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1170498
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1195074
29	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1477662
30	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1511652
31	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1615640
32	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1711805
33	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1751014
34	Lukov D.R. (Gendalf)	243	0	90	2022-07-21 11:18:50		1867923
35	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2014504
36	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2266261
37	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2394613
38	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2528967
39	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2571154
40	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2574901
41	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2816967
42	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2884330
43	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2958660
44	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3023614
45	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3031585
46	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3071099
47	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3094827
48	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3405216
49	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3432498
50	Romanov K.Yu. (kostik)	309	0	12	2019-07-25 08:42:10		3440560
51	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3458843
52	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3502922
53	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3642897
54	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3741165
55	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3744346
56	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3886537
57	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3947084
58	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		4000443
59	Zyrin V.E. (Vezyr)	543	0	29	2018-05-29 14:14:19		4047908
60	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4139974
61	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4143884
62	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4143962
63	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4166592
64	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4180749
65	F (uff)	65	25	95	2018-01-22 15:57:03		4230685
66	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4282353
67	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4319823
68	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4321585
69	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4322653
70	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4360368
71	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4387485
72	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4420548
73	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4497193
74	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4543737
75	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4547886
76	F (uff)	65	25	185	2017-06-01 10:27:49		4569414
77	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4609287
78	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4671178
79	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4906082
80	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4941555
81	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5020778
82	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5151113
83	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5193213
84	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5362633
85	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5394321
86	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5428320
87	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5437681
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5463527
89	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5477831
90	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5479517
91	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5491127
92	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5494698
93	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5498029
94	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5541714
95	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5542981
96	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5551543
97	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5561273
98	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5569900
99	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5800339
100	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5801965

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