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SQL exercises

June 15, 10:25 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: 15108

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	49	40	143	2026-06-12 10:09:54	2026-06-13 03:07:28	1018
2	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
3	Makarov I.A. (_Bkmz_)	49	40	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
4	Varenikov D.M. (Dmitriy Varenikov)	20	129	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
5	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
6	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
7	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
8	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		32495
9	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		32521
10	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		44460
11	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		53101
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		66160
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		76388
14	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		77230
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		107942
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		201169
17	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		277009
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		488712
19	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		610432
20	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		692587
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		722835
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		735024
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		882876
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		884184
25	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		906935
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1016474
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1128538
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1128539
29	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1157695
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1184215
31	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1197847
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1263890
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1267203
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1269593
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1302258
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1354520
37	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1379097
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1695675
39	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1799663
40	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1895828
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1935037
42	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2051946
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2198527
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2450284
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2578636
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2712990
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2755176
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2758924
49	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		3000990
50	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3068353
51	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3142683
52	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3207637
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3215608
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3255122
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3278850
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3589239
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3616521
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3624583
59	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3642866
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3686945
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3826920
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3925188
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3928369
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4070560
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4131107
66	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4184466
67	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4231931
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4323997
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4327907
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4327985
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4350615
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4364772
73	F (uff)	65	25	95	2018-01-22 15:57:03		4414708
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4466376
75	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4503846
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4505608
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4506676
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4544391
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4571508
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4604570
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4681215
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4727760
83	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4731909
84	F (uff)	65	25	185	2017-06-01 10:27:49		4753437
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4793310
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4855201
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5090105
88	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5125578
89	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5204801
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5335136
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5377236
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5546656
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5578344
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5612343
95	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5621704
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5647550
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5661854
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5663540
99	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5675149
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5678721

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