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SQL exercises

October 10, 01:39 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: 13883

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Safronov P.A. (Paulus73)	124	4	140	2026-10-09 09:42:14		957
2	Safronov P.A. (Paulus73)	124	4	142	2026-10-08 11:19:23	2026-10-08 22:44:52	685
3	Sarkis'yan G. (gennadi_s)	14	185	208	2026-10-08 15:07:00		2072
4	Safronov P.A. (Paulus73)	124	4	139	2026-10-08 10:01:07	2026-10-08 11:01:43	61
5	Safronov P.A. (Paulus73)	124	4	138	2026-10-06 09:41:15	2026-10-07 02:54:18	1033
6	Filippkin D.V. (_dimon_)	2	260	240	2026-10-05 14:13:38	2026-10-06 15:58:40	1545
7	Safronov P.A. (Paulus73)	124	4	53	2026-10-05 09:54:21	2026-10-05 12:48:36	174
8	Vinogradova S.M. (Tigra1)	125	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
9	Vinogradova S.M. (Tigra1)	125	4	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
10	Filippkin D.V. (_dimon_)	2	260	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
11	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		13965
12	Vinogradova S.M. (Tigra1)	125	4	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
13	Sigankov V.I. (vasilyvanc)	33	72	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
14	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		47128
15	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		61197
16	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		71706
17	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		101525
18	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		104418
19	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		113126
20	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		115894
21	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		166020
22	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		200449
23	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		234114
24	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		244342
25	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		245184
26	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		275896
27	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		369123
28	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		444963
29	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		656666
30	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		890789
31	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		902978
32	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1050830
33	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1052139
34	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1074889
35	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1184428
36	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1296493
37	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1296493
38	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1325649
39	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1352169
40	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1365801
41	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1431844
42	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1435157
43	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1437547
44	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1470212
45	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1522475
46	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1547051
47	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1863629
48	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1967617
49	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2063782
50	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2102991
51	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2219900
52	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2366481
53	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2618238
54	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2746590
55	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2880944
56	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2923131
57	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2926878
58	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3168944
59	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3236307
60	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3310637
61	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3375591
62	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3383562
63	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3423076
64	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3446804
65	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3757193
66	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3784475
67	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3792537
68	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3810820
69	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3854899
70	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3994874
71	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4093142
72	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4096323
73	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4238514
74	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4299061
75	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4352420
76	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4399885
77	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4491951
78	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4495861
79	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4495939
80	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4518569
81	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4532726
82	F (uff)	66	23	95	2018-01-22 15:57:03		4582662
83	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4634330
84	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4671800
85	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4673562
86	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4674630
87	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4712345
88	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4739462
89	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4772525
90	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4849170
91	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4895714
92	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4899863
93	F (uff)	66	23	185	2017-06-01 10:27:49		4921391
94	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4961264
95	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5023155
96	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5258059
97	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5293532
98	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5372755
99	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5503090
100	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5545190

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