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SQL exercises

July 25, 19:44 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: 15113

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Krasovskij E.A. (pegoopik)	1	262	240	2025-07-25 19:02:52	2025-07-25 19:03:24	1
2	Sarkis'yan G. (gennadi_s)	24	105	177	2025-07-23 13:53:32		3231
3	Makarov I.A. (_Bkmz_)	59	29	174	2025-07-20 09:49:05	2025-07-20 13:05:03	196
4	Makarov I.A. (_Bkmz_)	59	29	202	2025-07-19 10:07:28	2025-07-19 12:15:02	128
5	Sarkis'yan G. (gennadi_s)	24	105	176	2025-07-14 10:47:08	2025-07-18 13:39:50	5933
6	Chebykin D. (GriGrim)	38	62	32	2025-07-14 00:48:13	2025-07-14 23:43:31	1375
7	Chebykin D. (GriGrim)	38	62	5	2025-07-13 18:57:04	2025-07-14 00:44:45	348
8	Makarov I.A. (_Bkmz_)	59	29	162	2025-07-13 09:28:38	2025-07-13 11:51:03	142
9	Sarkis'yan G. (gennadi_s)	24	105	175	2025-07-04 14:31:46	2025-07-12 13:47:07	11475
10	Makarov I.A. (_Bkmz_)	59	29	209	2025-07-12 09:51:05	2025-07-12 11:17:41	87
11	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		21271
12	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		142992
13	Fomichev A.V. (Fomichev)	196	0	7	2025-02-25 02:16:37		217048
14	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		225146
15	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		255394
16	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		267583
17	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		415436
18	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		416744
19	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		439494
20	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		466934
21	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		549033
22	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		661098
23	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		661098
24	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		690254
25	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		716775
26	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		730406
27	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		796449
28	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		799763
29	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		802152
30	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		834817
31	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		879993
32	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		887080
33	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		911656
34	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1156688
35	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1194244
36	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1228234
37	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1332223
38	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1428387
39	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1467596
40	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1584505
41	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1731087
42	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1845136
43	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1982843
44	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2111195
45	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2245549
46	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2287736
47	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2291483
48	Kozharinov A. (bubala)	206	0	10	2020-09-30 09:55:07		2533549
49	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2600912
50	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2675242
51	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2740196
52	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2748167
53	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2787681
54	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2811409
55	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3121798
56	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3149080
57	Romanov K.Yu. (kostik)	305	0	12	2019-07-25 08:42:10		3157142
58	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3175425
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3219504
60	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3359479
61	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3457747
62	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3460928
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3603119
64	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3663666
65	Voevutskij S.A. (SergLK)	211	0	45	2018-07-01 13:19:14		3717025
66	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3764490
67	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3856557
68	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3860466
69	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3860544
70	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3883174
71	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3897331
72	F (uff)	65	25	95	2018-01-22 15:57:03		3947267
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		3998936
74	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4036406
75	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		4038167
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4039235
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4076950
78	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4104067
79	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4137130
80	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4213775
81	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4260319
82	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4264468
83	F (uff)	65	25	185	2017-06-01 10:27:49		4285996
84	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4325869
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4387760
86	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4622664
87	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4658137
88	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4737360
89	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4867696
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4909795
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5079215
92	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5110903
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5144902
94	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5154263
95	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5180109
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5194413
97	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5196099
98	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5207709
99	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5211280
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5214611

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