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SQL exercises

June 22, 03:37 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: 15114

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		7739
2	Makarov I.A. (_Bkmz_)	49	40	143	2026-06-12 10:09:54	2026-06-13 03:07:28	1018
3	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		42168
4	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		42194
5	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		54132
6	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		62774
7	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		75833
8	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		86061
9	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		86903
10	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		117614
11	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		210842
12	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		286682
13	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		498385
14	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		620105
15	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		702260
16	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		732508
17	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		744696
18	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		892549
19	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		893857
20	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		916608
21	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1026147
22	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1138211
23	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1138212
24	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1167367
25	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1193888
26	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1207520
27	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1273562
28	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1276876
29	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1279266
30	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1311931
31	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1364193
32	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1388770
33	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1705347
34	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1809336
35	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1905501
36	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1944710
37	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2061619
38	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2208200
39	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2459957
40	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2588309
41	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2722663
42	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2764849
43	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2768597
44	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		3010663
45	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3078026
46	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3152356
47	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3217310
48	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3225280
49	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3264795
50	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3288522
51	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3598912
52	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3626194
53	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3634256
54	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3652539
55	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3696618
56	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3836593
57	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3934860
58	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3938041
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4080232
60	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4140780
61	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4194139
62	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4241604
63	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4333670
64	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4337579
65	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4337658
66	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4360288
67	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4374444
68	F (uff)	65	25	95	2018-01-22 15:57:03		4424381
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4476049
70	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4513519
71	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4515280
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4516349
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4554064
74	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4581180
75	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4614243
76	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4690888
77	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4737433
78	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4741582
79	F (uff)	65	25	185	2017-06-01 10:27:49		4763110
80	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4802983
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4864874
82	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5099778
83	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5135250
84	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5214474
85	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5344809
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5386908
87	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5556329
88	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5588017
89	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5622015
90	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5631377
91	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5657223
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5671527
93	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5673213
94	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5684822
95	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5688393
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5691724
97	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5735410
98	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5736677
99	Chebykin D. (GriGrim)	39	62	216	2015-07-20 09:39:02		5745239
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5754969

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