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SQL exercises

January 19, 15:19 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: 15332

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Petrov Y. (YuriPetrov)	32	76	198	2026-01-17 16:11:10		2828
2	Sarkis'yan G. (gennadi_s)	16	142	190	2026-01-11 13:55:22	2026-01-12 11:21:39	1286
3	Lukov D.R. (Gendalf)	242	0	32	2025-12-05 01:36:21		65623
4	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		277327
5	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		399047
6	Fomichev A.V. (Fomichev)	198	0	7	2025-02-25 02:16:37		473103
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		481201
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		511450
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		523638
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		671491
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		672799
12	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		695550
13	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		722990
14	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		805088
15	Slavutinskij V.V. (Vasilko)	448	0	5	2024-04-22 17:26:35		917153
16	Slavutinskij V.V. (Vasilko)	448	0	7	2024-04-22 17:26:21		917153
17	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		946309
18	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		972830
19	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		986462
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1052504
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1055818
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1058207
23	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1090872
24	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1136048
25	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1143135
26	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1167712
27	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1412743
28	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1450299
29	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1484289
30	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1588278
31	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1684443
32	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1723651
33	Lukov D.R. (Gendalf)	242	0	90	2022-07-21 11:18:50		1840561
34	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1987142
35	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2238898
36	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2367250
37	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2501604
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2543791
39	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2547538
40	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2789604
41	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2856967
42	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2931297
43	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		2996251
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3004222
45	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3043737
46	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3067464
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3377853
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3405135
49	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3413197
50	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3431481
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3475559
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3615534
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3713802
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3716983
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3859174
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3919721
57	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3973080
58	Zyrin V.E. (Vezyr)	541	0	29	2018-05-29 14:14:19		4020545
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4112612
60	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4116521
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4116600
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4139229
63	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4153386
64	F (uff)	65	25	95	2018-01-22 15:57:03		4203322
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4254991
66	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4292461
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4294222
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4295290
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4333005
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4360122
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4393185
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4469830
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4516375
74	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4520524
75	F (uff)	65	25	185	2017-06-01 10:27:49		4542052
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4581925
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4643816
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4878719
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4914192
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4993415
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5123751
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5165850
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5335271
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5366958
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5400957
86	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5410318
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5436165
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5450469
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5452155
90	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5463764
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5467335
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5470666
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5514352
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5515619
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5524180
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5533911
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5542537
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5772976
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5774603
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5822763

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