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SQL exercises

March 12, 17:23 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: 15409

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Koptel'tsev V. (selber)	20	122	179	2026-02-21 19:34:16	2026-03-09 22:57:01	23243
2	Polyakov V.M. (rock_4)	133	0	138	2026-02-20 17:03:21		28820
3	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		64787
4	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		140627
5	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		352331
6	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		474051
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		556206
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		586454
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		598642
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		746495
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		747803
12	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		770554
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		880092
14	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		992157
15	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		992157
16	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1021313
17	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1047834
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1061466
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1127508
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1130822
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1133212
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1165877
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1218139
24	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1242716
25	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1525303
26	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1559293
27	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1663282
28	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1759447
29	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1798655
30	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1915565
31	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2062146
32	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2313903
33	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2442255
34	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2576609
35	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2618795
36	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2622543
37	Kozharinov A. (bubala)	210	0	10	2020-09-30 09:55:07		2864609
38	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2931972
39	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3006302
40	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3071256
41	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3079226
42	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3118741
43	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3142468
44	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3452857
45	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3480139
46	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3488202
47	Kordyum A. (alko58)	228	0	12	2019-07-12 15:58:52		3506485
48	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3550563
49	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3690538
50	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3788806
51	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3791987
52	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3934178
53	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3994725
54	Voevutskij S.A. (SergLK)	216	0	45	2018-07-01 13:19:14		4048084
55	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4095549
56	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4187616
57	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4191525
58	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4191604
59	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4214233
60	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4228390
61	F (uff)	65	25	95	2018-01-22 15:57:03		4278327
62	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4329995
63	Kordyum A. (alko58)	228	0	101	2017-11-21 18:18:43		4367465
64	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4369226
65	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4370294
66	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4408009
67	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4435126
68	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4468189
69	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4544834
70	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4591379
71	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4595528
72	F (uff)	65	25	185	2017-06-01 10:27:49		4617056
73	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4656929
74	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4718820
75	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4953723
76	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4989196
77	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5068420
78	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5198755
79	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5240854
80	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5410275
81	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5441962
82	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5475961
83	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5485323
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5511169
85	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5525473
86	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5527159
87	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5538768
88	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5542339
89	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5545670
90	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5589356
91	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5590623
92	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5599185
93	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5608915
94	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5617542
95	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5847981
96	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5849607
97	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5897767
98	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5925927
99	Fajnberg M.L. (burnall)	73	21	122	2014-10-31 12:46:14		5976277
100	Kabanets E.G. (azkaban)	94	9	209	2014-09-27 01:00:23		6025943

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