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SQL exercises

October 18, 17:39 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: 13894

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	188	192	2026-10-17 13:29:17		1690
2	Krasovskij E.A. (pegoopik)	1	268	192	2026-10-16 18:51:16	2026-10-16 18:51:23	0
3	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
4	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		11558
5	Sarkis'yan G. (gennadi_s)	14	188	208	2026-10-08 15:07:00	2026-10-10 12:57:58	2751
6	Safronov P.A. (Paulus73)	117	6	142	2026-10-08 11:19:23	2026-10-08 22:44:52	685
7	Safronov P.A. (Paulus73)	117	6	139	2026-10-08 10:01:07	2026-10-08 11:01:43	61
8	Safronov P.A. (Paulus73)	117	6	138	2026-10-06 09:41:15	2026-10-07 02:54:18	1033
9	Filippkin D.V. (_dimon_)	2	260	240	2026-10-05 14:13:38	2026-10-06 15:58:40	1545
10	Safronov P.A. (Paulus73)	117	6	53	2026-10-05 09:54:21	2026-10-05 12:48:36	174
11	Vinogradova S.M. (Tigra1)	125	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
12	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		26445
13	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		59608
14	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		73677
15	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		84186
16	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		114005
17	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		116898
18	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		125606
19	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		128374
20	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		178500
21	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		212929
22	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		246594
23	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		256822
24	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		257664
25	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		288376
26	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		381603
27	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		457443
28	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		669146
29	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		903269
30	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		915458
31	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1063310
32	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1064618
33	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1087369
34	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1196908
35	Slavutinskij V.V. (Vasilko)	457	0	5	2024-04-22 17:26:35		1308972
36	Slavutinskij V.V. (Vasilko)	457	0	7	2024-04-22 17:26:21		1308973
37	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1338129
38	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1364649
39	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1378281
40	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1444323
41	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1447637
42	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1450027
43	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1482692
44	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1534954
45	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1559531
46	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1876109
47	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1980097
48	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2076262
49	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2115471
50	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2232380
51	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2378961
52	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2630718
53	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2759070
54	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2893424
55	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2935610
56	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2939358
57	Kozharinov A. (bubala)	214	0	10	2020-09-30 09:55:07		3181424
58	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3248787
59	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3323117
60	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3388071
61	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3396042
62	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3435556
63	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3459283
64	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3769673
65	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3796955
66	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3805017
67	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3823300
68	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3867379
69	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4007354
70	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4105622
71	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4108803
72	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4250994
73	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4311541
74	Voevutskij S.A. (SergLK)	220	0	45	2018-07-01 13:19:14		4364900
75	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4412365
76	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4504431
77	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4508340
78	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4508419
79	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4531049
80	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4545206
81	F (uff)	66	23	95	2018-01-22 15:57:03		4595142
82	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4646810
83	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4684280
84	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4686041
85	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4687110
86	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4724825
87	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4751942
88	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4785004
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4861649
90	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4908194
91	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4912343
92	F (uff)	66	23	185	2017-06-01 10:27:49		4933871
93	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4973744
94	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5035635
95	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5270539
96	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5306012
97	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5385235
98	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5515570
99	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5557670
100	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5727090

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