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SQL exercises

September 17, 14:04 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: 15177

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Krasovskij E.A. (pegoopik)	1	266	303	2026-09-11 20:13:12	2026-09-11 20:13:42	1
2	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20	2026-09-11 10:52:12	7003
3	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
4	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		14753
5	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		28822
6	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		39331
7	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		69150
8	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		72043
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		80751
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		83519
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		133645
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		168074
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		201739
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		211967
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		212809
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		243521
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		336748
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		412588
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		624291
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		858414
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		870603
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1018455
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1019763
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1042514
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1152053
26	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1264117
27	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1264118
28	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1293274
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1319794
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1333426
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1399468
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1402782
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1405172
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1437837
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1490099
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1514676
37	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1831254
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1935242
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2031407
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2070616
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2187525
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2334106
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2585863
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2714215
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2848569
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2890755
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2894503
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3136569
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3203932
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3278262
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3343216
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3351187
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3390701
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3414428
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3724818
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3752100
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3760162
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3778445
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3822524
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3962499
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4060767
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4063948
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4206139
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4266686
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4320045
66	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4367510
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4459576
68	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4463485
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4463564
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4486194
71	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4500351
72	F (uff)	65	25	95	2018-01-22 15:57:03		4550287
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4601955
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4639425
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4641186
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4642255
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4679970
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4707087
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4740149
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4816794
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4863339
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4867488
83	F (uff)	65	25	185	2017-06-01 10:27:49		4889016
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4928889
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4990780
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5225684
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5261157
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5340380
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5470715
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5512815
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5682235
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5713923
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5747922
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5757283
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5783129
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5797433
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5799119
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5810728
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5814300
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5817631

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