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SQL exercises

January 11, 21:36 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: 15322

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	16	138	190	2026-01-11 13:55:22		461
2	Sarkis'yan G. (gennadi_s)	16	138	189	2025-12-25 14:50:28	2026-01-05 12:53:05	15723
3	Petrov Y. (YuriPetrov)	32	76	233	2026-01-03 02:07:30	2026-01-05 04:08:29	3001
4	Koptel'tsev V. (selber)	21	119	149	2025-12-24 22:13:41	2026-01-04 12:09:17	15236
5	Petrov Y. (YuriPetrov)	32	76	219	2025-12-31 15:27:52	2025-12-31 20:05:34	278
6	Petrov Y. (YuriPetrov)	32	76	215	2025-12-29 23:33:14	2025-12-30 01:24:17	111
7	Lukov D.R. (Gendalf)	242	0	32	2025-12-05 01:36:21		54480
8	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		266183
9	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		387904
10	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		461960
11	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		470058
12	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		500306
13	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		512495
14	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		660348
15	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		661656
16	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		684406
17	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		711846
18	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		793945
19	Slavutinskij V.V. (Vasilko)	448	0	5	2024-04-22 17:26:35		906010
20	Slavutinskij V.V. (Vasilko)	448	0	7	2024-04-22 17:26:21		906010
21	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		935166
22	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		961687
23	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		975318
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1041361
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1044675
26	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1047064
27	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1079729
28	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1124905
29	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1131992
30	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1156568
31	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1401600
32	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1439156
33	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1473146
34	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1577135
35	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1673299
36	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1712508
37	Lukov D.R. (Gendalf)	242	0	90	2022-07-21 11:18:50		1829417
38	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1975999
39	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2227755
40	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2356107
41	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2490461
42	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2532648
43	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2536395
44	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2778461
45	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2845824
46	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2920154
47	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		2985108
48	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2993079
49	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3032593
50	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3056321
51	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3366710
52	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3393992
53	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3402054
54	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3420337
55	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3464416
56	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3604391
57	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3702659
58	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3705840
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3848031
60	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3908578
61	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3961937
62	Zyrin V.E. (Vezyr)	540	0	29	2018-05-29 14:14:19		4009402
63	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4101468
64	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4105378
65	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4105456
66	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4128086
67	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4142243
68	F (uff)	65	25	95	2018-01-22 15:57:03		4192179
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4243848
70	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4281318
71	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4283079
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4284147
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4321862
74	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4348979
75	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4382042
76	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4458687
77	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4505231
78	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4509380
79	F (uff)	65	25	185	2017-06-01 10:27:49		4530908
80	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4570781
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4632672
82	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4867576
83	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4903049
84	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4982272
85	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5112608
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5154707
87	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5324127
88	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5355815
89	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5389814
90	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5399175
91	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5425021
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5439325
93	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5441011
94	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5452621
95	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5456192
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5459523
97	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5503208
98	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5504475
99	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5513037
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5522767

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