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SQL exercises

January 23, 08:12 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: 15359

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Petrov Y. (YuriPetrov)	32	78	198	2026-01-17 16:11:10	2026-01-20 01:16:01	3425
2	Sarkis'yan G. (gennadi_s)	16	142	191	2026-01-19 15:25:23		5327
3	Sarkis'yan G. (gennadi_s)	16	142	190	2026-01-11 13:55:22	2026-01-12 11:21:39	1286
4	Lukov D.R. (Gendalf)	242	0	32	2025-12-05 01:36:21		70956
5	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		282659
6	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		404380
7	Fomichev A.V. (Fomichev)	198	0	7	2025-02-25 02:16:37		478436
8	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		486534
9	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		516782
10	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		528971
11	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		676824
12	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		678132
13	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		700882
14	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		728323
15	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		810421
16	Slavutinskij V.V. (Vasilko)	449	0	5	2024-04-22 17:26:35		922486
17	Slavutinskij V.V. (Vasilko)	449	0	7	2024-04-22 17:26:21		922486
18	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		951642
19	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		978163
20	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		991794
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1057837
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1061151
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1063540
24	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1096205
25	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1141381
26	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1148468
27	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1173044
28	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1418076
29	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1455632
30	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1489622
31	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1593611
32	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1689775
33	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1728984
34	Lukov D.R. (Gendalf)	242	0	90	2022-07-21 11:18:50		1845893
35	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1992475
36	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2244231
37	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2372583
38	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2506937
39	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2549124
40	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2552871
41	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2794937
42	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2862300
43	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2936630
44	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3001584
45	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3009555
46	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3049070
47	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3072797
48	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3383186
49	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3410468
50	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3418530
51	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3436813
52	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3480892
53	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3620867
54	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3719135
55	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3722316
56	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3864507
57	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3925054
58	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3978413
59	Zyrin V.E. (Vezyr)	541	0	29	2018-05-29 14:14:19		4025878
60	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4117945
61	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4121854
62	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4121932
63	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4144562
64	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4158719
65	F (uff)	65	25	95	2018-01-22 15:57:03		4208655
66	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4260324
67	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4297794
68	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4299555
69	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4300623
70	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4338338
71	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4365455
72	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4398518
73	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4475163
74	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4521707
75	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4525857
76	F (uff)	65	25	185	2017-06-01 10:27:49		4547385
77	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4587257
78	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4649148
79	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4884052
80	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4919525
81	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4998748
82	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5129084
83	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5171183
84	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5340603
85	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5372291
86	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5406290
87	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5415651
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5441498
89	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5455801
90	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5457487
91	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5469097
92	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5472668
93	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5475999
94	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5519684
95	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5520951
96	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5529513
97	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5539243
98	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5547870
99	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5778309
100	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5779936

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