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SQL exercises

October 16, 02:54 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: 13896

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
2	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		7793
3	Sarkis'yan G. (gennadi_s)	14	188	208	2026-10-08 15:07:00	2026-10-10 12:57:58	2751
4	Safronov P.A. (Paulus73)	117	6	142	2026-10-08 11:19:23	2026-10-08 22:44:52	685
5	Safronov P.A. (Paulus73)	117	6	139	2026-10-08 10:01:07	2026-10-08 11:01:43	61
6	Safronov P.A. (Paulus73)	117	6	138	2026-10-06 09:41:15	2026-10-07 02:54:18	1033
7	Filippkin D.V. (_dimon_)	2	260	240	2026-10-05 14:13:38	2026-10-06 15:58:40	1545
8	Safronov P.A. (Paulus73)	117	6	53	2026-10-05 09:54:21	2026-10-05 12:48:36	174
9	Vinogradova S.M. (Tigra1)	125	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
10	Vinogradova S.M. (Tigra1)	125	4	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
11	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		22680
12	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		55843
13	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		69912
14	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		80421
15	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		110240
16	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		113133
17	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		121841
18	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		124609
19	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		174735
20	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		209164
21	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		242829
22	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		253057
23	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		253899
24	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		284611
25	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		377838
26	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		453678
27	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		665381
28	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		899504
29	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		911693
30	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1059545
31	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1060853
32	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1083604
33	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1193143
34	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1305208
35	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1305208
36	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1334364
37	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1360884
38	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1374516
39	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1440559
40	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1443872
41	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1446262
42	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1478927
43	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1531189
44	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1555766
45	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1872344
46	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1976332
47	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2072497
48	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2111706
49	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2228615
50	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2375196
51	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2626953
52	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2755305
53	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2889659
54	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2931845
55	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2935593
56	Kozharinov A. (bubala)	214	0	10	2020-09-30 09:55:07		3177659
57	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3245022
58	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3319352
59	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3384306
60	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3392277
61	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3431791
62	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3455519
63	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3765908
64	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3793190
65	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3801252
66	Kordyum A. (alko58)	232	0	12	2019-07-12 15:58:52		3819535
67	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3863614
68	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4003589
69	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4101857
70	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4105038
71	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4247229
72	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4307776
73	Voevutskij S.A. (SergLK)	220	0	45	2018-07-01 13:19:14		4361135
74	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4408600
75	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4500666
76	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4504576
77	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4504654
78	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4527284
79	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4541441
80	F (uff)	66	23	95	2018-01-22 15:57:03		4591377
81	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4643045
82	Kordyum A. (alko58)	232	0	101	2017-11-21 18:18:43		4680515
83	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4682277
84	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4683345
85	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4721060
86	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4748177
87	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4781240
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4857884
89	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4904429
90	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4908578
91	F (uff)	66	23	185	2017-06-01 10:27:49		4930106
92	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4969979
93	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5031870
94	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5266774
95	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5302247
96	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5381470
97	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5511805
98	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5553905
99	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5723325
100	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5755013

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