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SQL exercises

October 26, 10:19 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: 13909

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	13	192	192	2026-10-17 13:29:17	2026-10-22 14:52:53	7284
2	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		9558
3	Krasovskij E.A. (pegoopik)	1	268	192	2026-10-16 18:51:16	2026-10-16 18:51:23	0
4	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
5	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		22639
6	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		37526
7	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		70689
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		84758
9	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		95267
10	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		125086
11	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		127978
12	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		136687
13	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		139455
14	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		189581
15	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		224010
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		257675
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		267903
18	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		268744
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		299456
20	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		392684
21	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		468523
22	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		680227
23	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		914350
24	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		926538
25	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1074391
26	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1075699
27	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1098450
28	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1207988
29	Slavutinskij V.V. (Vasilko)	459	0	5	2024-04-22 17:26:35		1320053
30	Slavutinskij V.V. (Vasilko)	459	0	7	2024-04-22 17:26:21		1320053
31	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1349209
32	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1375730
33	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1389362
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1455404
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1458718
36	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1461108
37	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1493773
38	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1546035
39	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1570612
40	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1887189
41	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1991178
42	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2087343
43	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2126551
44	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2243461
45	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2390042
46	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2641799
47	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2770151
48	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2904505
49	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2946691
50	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2950439
51	Kozharinov A. (bubala)	215	0	10	2020-09-30 09:55:07		3192505
52	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3259868
53	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3334198
54	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3399152
55	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3407122
56	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3446637
57	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3470364
58	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3780754
59	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3808036
60	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3816098
61	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3834381
62	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3878459
63	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4018434
64	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4116702
65	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4119883
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4262074
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4322621
68	Voevutskij S.A. (SergLK)	221	0	45	2018-07-01 13:19:14		4375981
69	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4423445
70	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4515512
71	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4519421
72	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4519500
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4542129
74	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4556286
75	F (uff)	66	23	95	2018-01-22 15:57:03		4606223
76	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4657891
77	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4695361
78	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4697122
79	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4698190
80	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4735905
81	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4763022
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4796085
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4872730
84	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4919275
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4923424
86	F (uff)	66	23	185	2017-06-01 10:27:49		4944952
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4984825
88	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5046716
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5281620
90	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5317092
91	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5396316
92	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5526651
93	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5568750
94	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5738171
95	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5769858
96	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5803857
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5813219
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5839065
99	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5853369
100	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5855055

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