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SQL exercises

January 21, 04:49 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: 14923

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Chuvstvin M. (chuvstvinmaxim)	127	3	197	2025-01-21 00:09:37	2025-01-21 01:41:48	92
2	Chuvstvin M. (chuvstvinmaxim)	127	3	258	2025-01-21 00:01:28		288
3	Chuvstvin M. (chuvstvinmaxim)	127	3	192	2025-01-20 10:46:29	2025-01-20 23:52:58	786
4	Chuvstvin M. (chuvstvinmaxim)	127	3	138	2025-01-14 01:48:28	2025-01-20 01:53:02	8645
5	Sarkis'yan G. (gennadi_s)	37	63	159	2025-01-16 15:33:13		6556
6	Sarkis'yan G. (gennadi_s)	37	63	158	2025-01-12 14:21:35	2025-01-14 17:52:54	3091
7	Koptel'tsev V. (selber)	24	98	143	2025-01-14 06:44:30		9965
8	Chuvstvin M. (chuvstvinmaxim)	127	3	137	2025-01-06 01:47:12	2025-01-14 01:07:31	11480
9	Makarov I.A. (_Bkmz_)	93	9	99	2025-01-12 10:29:27	2025-01-12 16:28:41	359
10	Makarov I.A. (_Bkmz_)	93	9	93	2025-01-11 14:46:23	2025-01-11 19:10:48	264
11	Makarov I.A. (_Bkmz_)	93	9	82	2025-01-11 10:14:35	2025-01-11 14:05:11	231
12	Makarov I.A. (_Bkmz_)	93	9	95	2025-01-08 16:42:01	2025-01-08 19:36:37	175
13	Sarkis'yan G. (gennadi_s)	37	63	157	2024-12-24 12:24:12	2025-01-08 14:04:35	21700
14	Makarov I.A. (_Bkmz_)	93	9	91	2025-01-08 12:14:52	2025-01-08 12:57:18	42
15	Makarov I.A. (_Bkmz_)	93	9	77	2025-01-08 10:28:07	2025-01-08 11:45:18	77
16	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		148141
17	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		149449
18	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		172200
19	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		199640
20	Zajtsev V.S. (Sleeping)	20	112	164	2024-07-09 13:11:22		281738
21	Slavutinskij V.V. (Vasilko)	436	0	5	2024-04-22 17:26:35		393803
22	Slavutinskij V.V. (Vasilko)	436	0	7	2024-04-22 17:26:21		393803
23	Williams B. (BW)	33	66	141	2024-04-02 11:30:28		422959
24	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		449480
25	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		463112
26	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	305	2024-01-19 17:35:31		529154
27	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	306	2024-01-17 10:21:39		532468
28	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	71	2024-01-15 18:32:03		534858
29	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		567522
30	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		612698
31	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		619785
32	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		644362
33	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		889394
34	Zajtsev V.S. (Sleeping)	20	112	150	2023-04-18 11:40:16		926949
35	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		960939
36	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1064928
37	Koptel'tsev V. (selber)	24	98	237	2022-11-06 21:16:51		1161093
38	Borisenkov D.V. (xuser)	97	9	173	2022-10-10 15:48:20		1200301
39	Lukov D.R. (Gendalf)	237	0	90	2022-07-21 11:18:50		1317211
40	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1463792
41	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1577842
42	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1715549
43	Fedevych V.I. (labuch_fedev)	35	65	221	2021-07-20 17:09:05		1843901
44	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1978254
45	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2020441
46	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2024188
47	Kozharinov A. (bubala)	202	0	10	2020-09-30 09:55:07		2266255
48	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2333617
49	Koptel'tsev V. (selber)	24	98	259	2020-06-24 00:22:07		2407948
50	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2472902
51	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2480872
52	Fedevych V.I. (labuch_fedev)	35	65	226	2020-04-06 22:22:48		2520387
53	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2544114
54	Fokin A. (Vizitor )	43	52	217	2019-08-18 21:46:14		2854503
55	Bazavluk M. (DoNotLook)	95	9	141	2019-07-30 23:04:12		2881785
56	Romanov K.Yu. (kostik)	297	0	12	2019-07-25 08:42:10		2889847
57	Kordyum A. (alko58)	218	0	12	2019-07-12 15:58:52		2908131
58	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		2952209
59	Mal'tsev A.V. (Palkin)	110	8	218	2019-03-06 20:25:17		3092184
60	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3190452
61	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		3193633
62	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		3335824
63	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3396371
64	Voevutskij S.A. (SergLK)	206	0	45	2018-07-01 13:19:14		3449730
65	Zyrin V.E. (Vezyr)	526	0	29	2018-05-29 14:14:19		3497195
66	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3589262
67	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3593171
68	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3593250
69	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3615879
70	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3630036
71	F (uff)	64	25	95	2018-01-22 15:57:03		3679973
72	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3731641
73	Kordyum A. (alko58)	218	0	101	2017-11-21 18:18:43		3769111
74	Zajtsev V.S. (Sleeping)	20	112	190	2017-11-20 12:57:31		3770872
75	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3771940
76	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3809655
77	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3836772
78	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		3869835
79	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3946480
80	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3993025
81	Vorob'ev E.V. (Johnnymnemonic)	154	0	138	2017-06-16 09:15:49		3997174
82	F (uff)	64	25	185	2017-06-01 10:27:49		4018702
83	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		4058575
84	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4120466
85	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4355369
86	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4390842
87	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4470066
88	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4600401
89	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4642500
90	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4811921
91	Maslyaev V.S. (Velmont)	88	11	170	2015-11-06 14:01:20		4843608
92	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		4877607
93	Fomichev A.V. (Fomichev)	192	0	101	2015-10-07 11:21:04		4886969
94	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4912815
95	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4927119
96	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		4928805
97	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4940414
98	Chebykin D. (GriGrim)	38	62	217	2015-08-28 21:04:30		4943985
99	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		4947316
100	Maslyaev V.S. (Velmont)	88	11	140	2015-07-27 05:27:50		4991002

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