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SQL exercises

March 06, 18:38 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: 15422

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	15	153	194	2026-02-10 15:42:58	2026-02-26 10:15:00	22712
2	Koptel'tsev V. (selber)	21	119	179	2026-02-21 19:34:16		18664
3	Polyakov V.M. (rock_4)	133	0	138	2026-02-20 17:03:21		20255
4	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		56222
5	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		132062
6	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		343765
7	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		465486
8	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		547640
9	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		577888
10	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		590077
11	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		737930
12	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		739238
13	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		761988
14	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		871527
15	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		983592
16	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		983592
17	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1012748
18	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1039269
19	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1052901
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1118943
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1122257
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1124646
23	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1157311
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1209574
25	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1234150
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1516738
27	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1550728
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1654717
29	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1750882
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1790090
31	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1907000
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2053581
33	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2305337
34	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2433689
35	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2568043
36	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2610230
37	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2613977
38	Kozharinov A. (bubala)	210	0	10	2020-09-30 09:55:07		2856043
39	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2923406
40	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2997736
41	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3062690
42	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3070661
43	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3110176
44	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3133903
45	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3444292
46	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3471574
47	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3479636
48	Kordyum A. (alko58)	227	0	12	2019-07-12 15:58:52		3497920
49	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3541998
50	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3681973
51	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3780241
52	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3783422
53	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3925613
54	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3986160
55	Voevutskij S.A. (SergLK)	216	0	45	2018-07-01 13:19:14		4039519
56	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4086984
57	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4179051
58	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4182960
59	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4183039
60	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4205668
61	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4219825
62	F (uff)	65	25	95	2018-01-22 15:57:03		4269761
63	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4321430
64	Kordyum A. (alko58)	227	0	101	2017-11-21 18:18:43		4358900
65	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4360661
66	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4361729
67	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4399444
68	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4426561
69	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4459624
70	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4536269
71	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4582813
72	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4586963
73	F (uff)	65	25	185	2017-06-01 10:27:49		4608491
74	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4648364
75	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4710255
76	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4945158
77	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4980631
78	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5059854
79	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5190190
80	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5232289
81	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5401710
82	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5433397
83	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5467396
84	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5476757
85	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5502604
86	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5516908
87	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5518593
88	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5530203
89	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5533774
90	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5537105
91	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5580791
92	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5582058
93	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5590619
94	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5600349
95	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5608976
96	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5839415
97	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5841042
98	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5889202
99	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5917362
100	Fajnberg M.L. (burnall)	73	21	122	2014-10-31 12:46:14		5967712

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