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SQL exercises

June 20, 01:29 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: 15109

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		4731
2	Makarov I.A. (_Bkmz_)	49	40	143	2026-06-12 10:09:54	2026-06-13 03:07:28	1018
3	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		39160
4	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		39186
5	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		51124
6	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		59765
7	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		72824
8	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		83052
9	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		83894
10	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		114606
11	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		207833
12	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		283673
13	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		495376
14	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		617097
15	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		699251
16	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		729500
17	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		741688
18	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		889541
19	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		890849
20	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		913599
21	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1023138
22	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1135203
23	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1135203
24	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1164359
25	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1190880
26	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1204512
27	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1270554
28	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1273868
29	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1276257
30	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1308922
31	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1361185
32	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1385762
33	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1702339
34	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1806328
35	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1902493
36	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1941701
37	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2058611
38	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2205192
39	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2456948
40	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2585300
41	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2719654
42	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2761841
43	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2765588
44	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		3007654
45	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3075017
46	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3149347
47	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3214301
48	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3222272
49	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3261787
50	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3285514
51	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3595903
52	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3623185
53	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3631247
54	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3649531
55	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3693609
56	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3833584
57	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3931852
58	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3935033
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4077224
60	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4137771
61	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4191130
62	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4238595
63	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4330662
64	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4334571
65	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4334650
66	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4357279
67	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4371436
68	F (uff)	65	25	95	2018-01-22 15:57:03		4421372
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4473041
70	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4510511
71	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4512272
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4513340
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4551055
74	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4578172
75	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4611235
76	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4687880
77	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4734425
78	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4738574
79	F (uff)	65	25	185	2017-06-01 10:27:49		4760102
80	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4799975
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4861866
82	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5096769
83	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5132242
84	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5211465
85	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5341801
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5383900
87	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5553321
88	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5585008
89	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5619007
90	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5628368
91	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5654215
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5668519
93	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5670205
94	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5681814
95	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5685385
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5688716
97	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5732402
98	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5733669
99	Chebykin D. (GriGrim)	39	62	216	2015-07-20 09:39:02		5742230
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5751961

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