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SQL exercises

October 12, 13:48 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: 15176

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
2	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		134675
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		256396
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		330452
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		338550
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		368798
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		380987
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		528840
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		530148
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		552898
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		580338
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		662437
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		774502
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		774502
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		803658
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		830179
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		843810
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		909853
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		913167
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		915556
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		948221
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		993397
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1000484
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1025060
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1270092
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1307648
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1341638
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1445627
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1541791
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1581000
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1697909
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1844491
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1958540
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2096247
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2224599
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2358953
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2401140
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2404887
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2646953
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2714316
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2788646
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2853600
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2861571
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2901085
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2924813
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3235202
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3262484
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3270546
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3288829
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3332908
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3472883
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3571151
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3574332
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3716523
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3777070
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3830429
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3877894
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3969960
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3973870
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3973948
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3996578
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4010735
63	F (uff)	65	25	95	2018-01-22 15:57:03		4060671
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4112340
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4149809
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4151571
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4152639
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4190354
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4217471
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4250534
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4327179
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4373723
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4377872
74	F (uff)	65	25	185	2017-06-01 10:27:49		4399400
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4439273
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4501164
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4736068
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4771541
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4850764
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4981099
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5023199
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5192619
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5224307
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5258306
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5267667
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5293513
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5307817
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5309503
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5321113
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5324684
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5328015
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5371700
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5372967
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5381529
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5391259
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5399886
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5630325
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5631951
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5680112
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5708272

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