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SQL exercises

May 21, 16:55 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: 15099

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Filippkin D.V. (_dimon_)	3	259	24	2026-05-21 10:12:47	2026-05-21 10:19:45	7
2	Vyazovetskov A.S. (alex_v)	11	223	230	2026-05-18 12:59:52	2026-05-20 15:56:52	3057
3	Makarov I.A. (_Bkmz_)	59	29	24	2026-05-16 11:11:27	2026-05-16 11:27:42	16
4	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		8850
5	Vyazovetskov A.S. (alex_v)	11	223	220	2026-05-13 11:51:48	2026-05-14 20:04:14	1932
6	Vyazovetskov A.S. (alex_v)	11	223	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
7	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		17491
8	Vyazovetskov A.S. (alex_v)	11	223	217	2026-05-08 10:20:20	2026-05-08 13:08:42	168
9	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		30550
10	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		40778
11	Vyazovetskov A.S. (alex_v)	11	223	264	2026-04-22 19:15:17		41620
12	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		72332
13	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		165559
14	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		241399
15	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		453103
16	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		574823
17	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		656978
18	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		687226
19	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		699414
20	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		847267
21	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		848575
22	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		871326
23	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		980864
24	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1092929
25	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1092929
26	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1122085
27	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1148606
28	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1162238
29	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1228280
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1231594
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1233984
32	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1266648
33	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1318911
34	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1343488
35	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1660065
36	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1764054
37	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1860219
38	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1899427
39	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2016337
40	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2162918
41	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2414675
42	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2543027
43	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2677381
44	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2719567
45	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2723314
46	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2965381
47	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3032743
48	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3107074
49	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3172028
50	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3179998
51	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3219513
52	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3243240
53	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3553629
54	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3580911
55	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3588973
56	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3607257
57	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3651335
58	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3791310
59	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3889578
60	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3892759
61	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4034950
62	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4095497
63	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4148856
64	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4196321
65	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4288388
66	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4292297
67	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4292376
68	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4315005
69	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4329162
70	F (uff)	65	25	95	2018-01-22 15:57:03		4379099
71	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4430767
72	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4468237
73	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4469998
74	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4471066
75	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4508781
76	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4535898
77	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4568961
78	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4645606
79	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4692151
80	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4696300
81	F (uff)	65	25	185	2017-06-01 10:27:49		4717828
82	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4757701
83	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4819592
84	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5054495
85	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5089968
86	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5169192
87	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5299527
88	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5341626
89	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5511047
90	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5542734
91	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5576733
92	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5586095
93	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5611941
94	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5626245
95	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5627931
96	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5639540
97	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5643111
98	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5646442
99	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5690128
100	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5691395

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