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SQL exercises

February 07, 01:44 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: 15353

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		16329
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		92169
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		303872
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		425592
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		507747
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		537995
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		550184
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		698036
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		699344
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		722095
15	Komarov A.N. (Shveda Saulya)	43	52	157	2024-09-04 13:29:47		749535
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		831634
17	Slavutinskij V.V. (Vasilko)	451	0	5	2024-04-22 17:26:35		943698
18	Slavutinskij V.V. (Vasilko)	451	0	7	2024-04-22 17:26:21		943699
19	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		972855
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		999375
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1013007
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1079049
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1082363
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1084753
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1117418
26	Komarov A.N. (Shveda Saulya)	43	52	150	2023-11-22 17:11:28		1162594
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1169680
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1194257
29	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1476845
30	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1510835
31	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1614823
32	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1710988
33	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1750197
34	Lukov D.R. (Gendalf)	243	0	90	2022-07-21 11:18:50		1867106
35	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2013687
36	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2265444
37	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2393796
38	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2528150
39	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2570336
40	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2574084
41	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2816150
42	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2883513
43	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2957843
44	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3022797
45	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3030768
46	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3070282
47	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3094009
48	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3404399
49	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3431681
50	Romanov K.Yu. (kostik)	309	0	12	2019-07-25 08:42:10		3439743
51	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3458026
52	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3502105
53	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3642080
54	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3740348
55	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3743529
56	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3885720
57	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3946267
58	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3999626
59	Zyrin V.E. (Vezyr)	543	0	29	2018-05-29 14:14:19		4047091
60	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4139157
61	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4143066
62	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4143145
63	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4165775
64	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4179931
65	F (uff)	65	25	95	2018-01-22 15:57:03		4229868
66	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4281536
67	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4319006
68	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4320767
69	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4321836
70	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4359551
71	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4386668
72	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4419730
73	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4496375
74	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4542920
75	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4547069
76	F (uff)	65	25	185	2017-06-01 10:27:49		4568597
77	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4608470
78	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4670361
79	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4905265
80	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4940738
81	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5019961
82	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5150296
83	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5192395
84	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5361816
85	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5393504
86	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5427503
87	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5436864
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5462710
89	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5477014
90	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5478700
91	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5490309
92	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5493880
93	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5497212
94	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5540897
95	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5542164
96	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5550726
97	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5560456
98	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5569083
99	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5799522
100	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5801148

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