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SQL exercises

September 18, 15:37 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: 15165

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Filippkin D.V. (_dimon_)	3	259	308	2025-09-12 13:42:31	2025-09-12 16:17:01	155
2	Koptel'tsev V. (selber)	21	113	240	2025-09-08 22:07:14		14010
3	Krasovskij E.A. (pegoopik)	1	262	308	2025-09-06 21:40:44	2025-09-06 22:55:33	75
4	Chernov D.V. (Kursist)	2	262	308	2025-09-06 21:42:05		16915
5	Sarkis'yan G. (gennadi_s)	20	115	181	2025-09-06 14:04:35		17373
6	Koptel'tsev V. (selber)	21	113	308	2025-09-05 21:56:38	2025-09-05 21:56:42	0
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		100224
8	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		221945
9	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		296001
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		304099
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		334347
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		346536
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		494389
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		495697
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		518447
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		545887
17	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		627986
18	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		740051
19	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		740051
20	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		769207
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		795728
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		809359
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		875402
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		878716
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		881105
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		913770
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		958946
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		966033
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		990609
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1235641
31	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1273197
32	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1307187
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1411176
34	Koptel'tsev V. (selber)	21	113	237	2022-11-06 21:16:51		1507340
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1546549
36	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1663458
37	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1810040
38	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1924089
39	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2061796
40	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2190148
41	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2324502
42	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2366689
43	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2370436
44	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2612502
45	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2679865
46	Koptel'tsev V. (selber)	21	113	259	2020-06-24 00:22:07		2754195
47	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2819149
48	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2827120
49	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2866634
50	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2890362
51	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3200751
52	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3228033
53	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3236095
54	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3254378
55	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3298457
56	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3438432
57	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3536700
58	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3539881
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3682072
60	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3742619
61	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3795978
62	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3843443
63	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3935510
64	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3939419
65	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3939497
66	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3962127
67	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3976284
68	F (uff)	65	25	95	2018-01-22 15:57:03		4026220
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4077889
70	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4115359
71	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4117120
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4118188
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4155903
74	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4183020
75	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4216083
76	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4292728
77	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4339272
78	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4343421
79	F (uff)	65	25	185	2017-06-01 10:27:49		4364949
80	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4404822
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4466713
82	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4701617
83	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4737090
84	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4816313
85	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4946649
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4988748
87	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5158168
88	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5189856
89	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5223855
90	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5233216
91	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5259062
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5273366
93	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5275052
94	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5286662
95	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5290233
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5293564
97	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5337249
98	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5338516
99	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5347078
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5356808

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