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SQL exercises

March 06, 13:15 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: 15420

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		18341
3	Polyakov V.M. (rock_4)	134	0	138	2026-02-20 17:03:21		19932
4	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		55899
5	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		131739
6	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		343443
7	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		465163
8	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		547318
9	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		577566
10	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		589754
11	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		737607
12	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		738915
13	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		761666
14	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		871204
15	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		983269
16	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		983269
17	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1012425
18	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1038946
19	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1052578
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1118620
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1121934
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1124324
23	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1156989
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1209251
25	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1233828
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1516415
27	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1550405
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1654394
29	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1750559
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1789767
31	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1906677
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2053258
33	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2305015
34	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2433367
35	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2567721
36	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2609907
37	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2613655
38	Kozharinov A. (bubala)	210	0	10	2020-09-30 09:55:07		2855721
39	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2923084
40	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2997414
41	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3062368
42	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3070338
43	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3109853
44	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3133580
45	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3443969
46	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3471251
47	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3479314
48	Kordyum A. (alko58)	227	0	12	2019-07-12 15:58:52		3497597
49	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3541675
50	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3681650
51	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3779918
52	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3783099
53	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3925290
54	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3985837
55	Voevutskij S.A. (SergLK)	216	0	45	2018-07-01 13:19:14		4039196
56	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4086661
57	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4178728
58	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4182637
59	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4182716
60	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4205345
61	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4219502
62	F (uff)	65	25	95	2018-01-22 15:57:03		4269439
63	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4321107
64	Kordyum A. (alko58)	227	0	101	2017-11-21 18:18:43		4358577
65	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4360338
66	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4361406
67	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4399121
68	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4426238
69	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4459301
70	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4535946
71	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4582491
72	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4586640
73	F (uff)	65	25	185	2017-06-01 10:27:49		4608168
74	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4648041
75	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4709932
76	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4944835
77	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4980308
78	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5059532
79	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5189867
80	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5231966
81	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5401387
82	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5433074
83	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5467073
84	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5476435
85	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5502281
86	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5516585
87	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5518271
88	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5529880
89	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5533451
90	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5536782
91	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5580468
92	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5581735
93	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5590297
94	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5600027
95	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5608654
96	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5839092
97	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5840719
98	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5888879
99	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5917039
100	Fajnberg M.L. (burnall)	73	21	122	2014-10-31 12:46:14		5967389

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