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SQL exercises

October 25, 19:54 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: 13907

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	13	192	192	2026-10-17 13:29:17	2026-10-22 14:52:53	7284
2	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		8693
3	Krasovskij E.A. (pegoopik)	1	268	192	2026-10-16 18:51:16	2026-10-16 18:51:23	0
4	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
5	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		21774
6	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		36661
7	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		69824
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		83893
9	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		94402
10	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		124221
11	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		127113
12	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		135822
13	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		138590
14	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		188716
15	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		223145
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		256810
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		267038
18	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		267880
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		298591
20	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		391819
21	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		467659
22	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		679362
23	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		913485
24	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		925673
25	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1073526
26	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1074834
27	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1097585
28	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1207124
29	Slavutinskij V.V. (Vasilko)	459	0	5	2024-04-22 17:26:35		1319188
30	Slavutinskij V.V. (Vasilko)	459	0	7	2024-04-22 17:26:21		1319189
31	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1348344
32	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1374865
33	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1388497
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1454539
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1457853
36	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1460243
37	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1492908
38	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1545170
39	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1569747
40	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1886324
41	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1990313
42	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2086478
43	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2125687
44	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2242596
45	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2389177
46	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2640934
47	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2769286
48	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2903640
49	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2945826
50	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2949574
51	Kozharinov A. (bubala)	215	0	10	2020-09-30 09:55:07		3191640
52	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3259003
53	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3333333
54	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3398287
55	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3406257
56	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3445772
57	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3469499
58	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3779889
59	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3807171
60	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3815233
61	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3833516
62	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3877595
63	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4017570
64	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4115837
65	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4119018
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4261209
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4321757
68	Voevutskij S.A. (SergLK)	221	0	45	2018-07-01 13:19:14		4375116
69	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4422581
70	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4514647
71	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4518556
72	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4518635
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4541265
74	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4555421
75	F (uff)	66	23	95	2018-01-22 15:57:03		4605358
76	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4657026
77	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4694496
78	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4696257
79	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4697326
80	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4735041
81	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4762157
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4795220
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4871865
84	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4918410
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4922559
86	F (uff)	66	23	185	2017-06-01 10:27:49		4944087
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4983960
88	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5045851
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5280755
90	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5316227
91	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5395451
92	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5525786
93	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5567885
94	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5737306
95	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5768994
96	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5802992
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5812354
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5838200
99	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5852504
100	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5854190

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