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SQL exercises

October 30, 18:08 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: 15224

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	124	184	2025-10-30 12:40:58		327
2	Varenikov D.M. (Dmitriy Varenikov)	18	128	264	2025-10-27 23:48:59	2025-10-27 23:50:54	2
3	Varenikov D.M. (Dmitriy Varenikov)	18	128	308	2025-10-27 16:55:56	2025-10-27 23:31:04	395
4	Varenikov D.M. (Dmitriy Varenikov)	18	128	175	2022-01-21 11:28:01	2025-10-27 02:35:26	1979467
5	Sarkis'yan G. (gennadi_s)	19	124	183	2025-10-23 18:10:46	2025-10-24 17:33:49	1403
6	Sarkis'yan G. (gennadi_s)	19	124	182	2025-10-13 15:25:57	2025-10-20 13:51:18	9985
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		160855
8	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		282576
9	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		356632
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		364730
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		394978
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		407167
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		555020
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		556328
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		579078
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		606519
17	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		688617
18	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		800682
19	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		800682
20	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		829838
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		856359
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		869990
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		936033
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		939347
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		941736
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		974401
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1019577
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1026664
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1051240
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1296272
31	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1333828
32	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1367818
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1471807
34	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1567971
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1607180
36	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1724089
37	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1870671
38	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2122427
39	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2250779
40	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2385133
41	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2427320
42	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2431067
43	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2673133
44	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2740496
45	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2814826
46	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2879780
47	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2887751
48	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2927266
49	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2950993
50	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3261382
51	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3288664
52	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3296726
53	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3315009
54	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3359088
55	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3499063
56	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3597331
57	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3600512
58	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3742703
59	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3803250
60	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3856609
61	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3904074
62	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3996141
63	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4000050
64	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4000128
65	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4022758
66	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4036915
67	F (uff)	65	25	95	2018-01-22 15:57:03		4086851
68	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4138520
69	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4175990
70	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4177751
71	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4178819
72	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4216534
73	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4243651
74	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4276714
75	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4353359
76	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4399903
77	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4404052
78	F (uff)	65	25	185	2017-06-01 10:27:49		4425580
79	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4465453
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4527344
81	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4762248
82	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4797721
83	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4876944
84	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5007280
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5049379
86	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5218799
87	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5250487
88	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5284486
89	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5293847
90	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5319694
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5333997
92	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5335683
93	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5347293
94	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5350864
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5354195
96	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5397880
97	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5399147
98	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5407709
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5417439
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5426066

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