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SQL exercises

December 21, 15:15 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: 14884

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	40	55	156	2024-12-20 15:15:56		1439
2	Makarov I.A. (_Bkmz_)	93	9	69	2024-12-19 11:59:31	2024-12-19 19:50:19	471
3	Sarkis'yan G. (gennadi_s)	40	55	155	2024-11-25 14:46:03	2024-12-19 09:57:37	34272
4	Makarov I.A. (_Bkmz_)	93	9	90	2024-12-18 12:42:34	2024-12-18 13:33:17	51
5	Makarov I.A. (_Bkmz_)	93	9	88	2024-12-18 12:14:42	2024-12-18 12:34:43	20
6	Makarov I.A. (_Bkmz_)	93	9	80	2024-12-18 10:19:48	2024-12-18 11:55:38	96
7	Makarov I.A. (_Bkmz_)	93	9	78	2024-12-17 12:37:51	2024-12-17 14:24:48	107
8	Makarov I.A. (_Bkmz_)	93	9	75	2024-12-17 11:35:51	2024-12-17 11:53:23	18
9	Makarov I.A. (_Bkmz_)	93	9	73	2024-12-17 10:26:18	2024-12-17 11:06:57	41
10	Makarov I.A. (_Bkmz_)	93	9	68	2024-12-16 11:01:11	2024-12-16 19:47:07	526
11	Makarov I.A. (_Bkmz_)	93	9	67	2024-12-15 13:09:32	2024-12-15 14:37:37	88
12	Makarov I.A. (_Bkmz_)	93	9	64	2024-12-15 11:06:04	2024-12-15 11:40:27	34
13	Makarov I.A. (_Bkmz_)	93	9	62	2024-12-14 15:17:49	2024-12-14 17:47:41	150
14	Makarov I.A. (_Bkmz_)	93	9	57	2024-12-14 12:24:31	2024-12-14 13:23:57	59
15	Makarov I.A. (_Bkmz_)	93	9	37	2024-12-14 10:36:52	2024-12-14 11:48:31	72
16	Makarov I.A. (_Bkmz_)	93	9	58	2024-12-13 15:57:25	2024-12-13 16:48:47	51
17	Makarov I.A. (_Bkmz_)	93	9	47	2024-12-13 14:38:49	2024-12-13 15:18:17	39
18	Makarov I.A. (_Bkmz_)	93	9	41	2024-12-13 10:52:54	2024-12-13 12:15:47	83
19	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		104126
20	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		105434
21	Frolov K.A. (Murderface_)	132	0	138	2024-09-23 14:49:59		128185
22	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		155625
23	Zajtsev V.S. (Sleeping)	20	112	164	2024-07-09 13:11:22		237724
24	Slavutinskij V.V. (Vasilko)	435	0	5	2024-04-22 17:26:35		349788
25	Slavutinskij V.V. (Vasilko)	435	0	7	2024-04-22 17:26:21		349789
26	Williams B. (BW)	33	66	141	2024-04-02 11:30:28		378945
27	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		405465
28	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		419097
29	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	305	2024-01-19 17:35:31		485140
30	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	306	2024-01-17 10:21:39		488453
31	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	71	2024-01-15 18:32:03		490843
32	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		523508
33	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		568684
34	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		575770
35	Rudikov E. (cubie)	133	0	138	2023-10-31 17:27:54		600347
36	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		845379
37	Zajtsev V.S. (Sleeping)	20	112	150	2023-04-18 11:40:16		882935
38	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		916925
39	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1020913
40	Koptel'tsev V. (selber)	24	97	237	2022-11-06 21:16:51		1117078
41	Borisenkov D.V. (xuser)	97	9	173	2022-10-10 15:48:20		1156287
42	Lukov D.R. (Gendalf)	236	0	90	2022-07-21 11:18:50		1273196
43	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1419777
44	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1533827
45	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1671534
46	Fedevych V.I. (labuch_fedev)	35	65	221	2021-07-20 17:09:05		1799886
47	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1934240
48	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		1976426
49	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		1980174
50	Kozharinov A. (bubala)	201	0	10	2020-09-30 09:55:07		2222240
51	Samarin A. (not.yet.sql.master)	136	0	112	2020-08-14 15:12:10		2289603
52	Koptel'tsev V. (selber)	24	97	259	2020-06-24 00:22:07		2363933
53	Samarin A. (not.yet.sql.master)	136	0	138	2020-05-09 21:48:04		2428887
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2436858
55	Fedevych V.I. (labuch_fedev)	35	65	226	2020-04-06 22:22:48		2476372
56	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2500099
57	Fokin A. (Vizitor )	43	52	217	2019-08-18 21:46:14		2810489
58	Bazavluk M. (DoNotLook)	95	9	141	2019-07-30 23:04:12		2837771
59	Romanov K.Yu. (kostik)	296	0	12	2019-07-25 08:42:10		2845833
60	Kordyum A. (alko58)	218	0	12	2019-07-12 15:58:52		2864116
61	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		2908195
62	Mal'tsev A.V. (Palkin)	110	8	218	2019-03-06 20:25:17		3048170
63	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3146438
64	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		3149619
65	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		3291810
66	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3352357
67	Voevutskij S.A. (SergLK)	205	0	45	2018-07-01 13:19:14		3405716
68	Zyrin V.E. (Vezyr)	525	0	29	2018-05-29 14:14:19		3453181
69	Chebykin D. (GriGrim)	37	62	228	2018-03-26 15:47:45		3545247
70	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3549156
71	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3549235
72	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3571865
73	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3586022
74	F (uff)	64	25	95	2018-01-22 15:57:03		3635958
75	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3687626
76	Kordyum A. (alko58)	218	0	101	2017-11-21 18:18:43		3725096
77	Zajtsev V.S. (Sleeping)	20	112	190	2017-11-20 12:57:31		3726858
78	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3727926
79	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3765641
80	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3792758
81	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		3825820
82	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3902465
83	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3949010
84	Vorob'ev E.V. (Johnnymnemonic)	154	0	138	2017-06-16 09:15:49		3953159
85	F (uff)	64	25	185	2017-06-01 10:27:49		3974687
86	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		4014560
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4076451
88	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4311355
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4346828
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4426051
91	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4556386
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4598486
93	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4767906
94	Maslyaev V.S. (Velmont)	88	11	170	2015-11-06 14:01:20		4799594
95	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		4833593
96	Fomichev A.V. (Fomichev)	192	0	101	2015-10-07 11:21:04		4842954
97	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4868800
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4883104
99	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		4884790
100	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4896399

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