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SQL exercises

August 12, 07:11 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: 15144

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	15	180	205	2026-08-07 13:45:21	2026-08-10 17:09:13	4524
2	Sarkis'yan G. (gennadi_s)	15	180	204	2026-08-04 12:34:26	2026-08-04 13:41:32	67
3	Koptel'tsev V. (selber)	19	133	198	2026-07-12 02:54:38	2026-07-31 20:31:37	28417
4	Williams B. (BW)	35	67	252	2026-07-31 13:33:49		16898
5	Williams B. (BW)	35	67	236	2026-07-29 13:21:56	2026-07-31 13:32:08	2890
6	Vyazovetskov A.S. (alex_v)	6	245	181	2026-07-29 14:43:59	2026-07-30 18:38:40	1675
7	Williams B. (BW)	35	67	264	2026-07-29 13:21:27		19790
8	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		28498
9	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		31266
10	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		81392
11	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		115821
12	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		136427
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		149486
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		159714
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		160556
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		191268
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		284495
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		360335
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		572038
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		806161
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		818350
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		966203
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		967511
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		990261
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1099800
26	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1211865
27	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1211865
28	Williams B. (BW)	35	67	141	2024-04-02 11:30:28		1241021
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1267542
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1281173
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1347216
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1350530
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1352919
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1385584
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1437847
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1462423
37	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1779001
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1882990
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		1979154
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2018363
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2135272
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2281854
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2533610
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2661962
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2796316
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2838503
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2842250
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3084316
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3151679
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3226009
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3290963
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3298934
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3338449
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3362176
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3672565
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3699847
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3707909
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3726192
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3770271
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3910246
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4008514
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4011695
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4153886
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4214433
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4267792
66	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4315257
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4407324
68	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4411233
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4411311
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4433941
71	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4448098
72	F (uff)	65	25	95	2018-01-22 15:57:03		4498034
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4549703
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4587173
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4588934
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4590002
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4627717
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4654834
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4687897
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4764542
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4811086
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4815236
83	F (uff)	65	25	185	2017-06-01 10:27:49		4836764
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4876636
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4938527
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5173431
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5208904
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5288127
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5418463
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5460562
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5629982
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5661670
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5695669
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5705030
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5730877
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5745180
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5746866
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5758476
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5762047
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5765378

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