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SQL exercises

October 11, 02:00 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: 13885

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		540
2	Sarkis'yan G. (gennadi_s)	14	188	208	2026-10-08 15:07:00	2026-10-10 12:57:58	2751
3	Safronov P.A. (Paulus73)	124	4	140	2026-10-09 09:42:14		2419
4	Safronov P.A. (Paulus73)	124	4	142	2026-10-08 11:19:23	2026-10-08 22:44:52	685
5	Safronov P.A. (Paulus73)	124	4	139	2026-10-08 10:01:07	2026-10-08 11:01:43	61
6	Safronov P.A. (Paulus73)	124	4	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)	124	4	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	Filippkin D.V. (_dimon_)	2	260	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
12	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		15427
13	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		48590
14	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		62659
15	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		73168
16	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		102987
17	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		105879
18	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		114588
19	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		117356
20	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		167482
21	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		201911
22	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		235576
23	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		245804
24	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		246645
25	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		277357
26	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		370585
27	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		446424
28	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		658128
29	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		892251
30	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		904439
31	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1052292
32	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1053600
33	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1076351
34	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1185889
35	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1297954
36	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1297954
37	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1327110
38	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1353631
39	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1367263
40	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1433305
41	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1436619
42	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1439009
43	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1471674
44	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1523936
45	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1548513
46	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1865090
47	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1969079
48	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2065244
49	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2104452
50	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2221362
51	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2367943
52	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2619700
53	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2748052
54	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2882406
55	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2924592
56	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2928340
57	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3170406
58	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3237769
59	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3312099
60	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3377053
61	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3385023
62	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3424538
63	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3448265
64	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3758655
65	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3785937
66	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3793999
67	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3812282
68	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3856360
69	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3996335
70	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4094603
71	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4097784
72	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4239975
73	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4300522
74	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4353882
75	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4401346
76	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4493413
77	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4497322
78	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4497401
79	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4520030
80	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4534187
81	F (uff)	66	23	95	2018-01-22 15:57:03		4584124
82	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4635792
83	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4673262
84	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4675023
85	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4676091
86	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4713806
87	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4740923
88	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4773986
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4850631
90	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4897176
91	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4901325
92	F (uff)	66	23	185	2017-06-01 10:27:49		4922853
93	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4962726
94	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5024617
95	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5259521
96	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5294993
97	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5374217
98	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5504552
99	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5546651
100	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5716072

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