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SQL exercises

September 20, 02:27 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: 15184

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	187	53	2026-09-18 17:50:12	2026-09-19 18:45:38	1495
2	Krasovskij E.A. (pegoopik)	1	266	53	2026-09-18 15:39:39	2026-09-18 15:39:44	0
3	Krasovskij E.A. (pegoopik)	1	266	303	2026-09-11 20:13:12	2026-09-11 20:13:42	1
4	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20	2026-09-11 10:52:12	7003
5	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
6	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		18377
7	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		32446
8	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		42955
9	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		72774
10	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		75666
11	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		84375
12	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		87143
13	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		137269
14	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		171698
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		205363
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		215591
17	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		216433
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		247144
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		340372
20	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		416212
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		627915
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		862038
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		874226
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1022079
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1023387
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1046138
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1155677
28	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1267741
29	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1267742
30	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1296897
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1323418
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1337050
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1403092
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1406406
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1408796
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1441461
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1493723
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1518300
39	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1834877
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1938866
41	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2035031
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2074240
43	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2191149
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2337730
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2589487
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2717839
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2852193
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2894379
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2898127
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3140193
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3207556
52	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3281886
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3346840
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3354810
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3394325
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3418052
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3728442
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3755724
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3763786
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3782069
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3826148
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3966123
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4064390
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4067571
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4209762
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4270310
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4323669
68	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4371134
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4463200
70	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4467109
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4467188
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4489818
73	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4503974
74	F (uff)	65	25	95	2018-01-22 15:57:03		4553911
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4605579
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4643049
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4644810
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4645879
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4683594
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4710710
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4743773
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4820418
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4866963
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4871112
85	F (uff)	65	25	185	2017-06-01 10:27:49		4892640
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4932513
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4994404
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5229308
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5264780
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5344004
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5474339
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5516438
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5685859
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5717547
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5751545
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5760907
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5786753
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5801057
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5802743
100	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5814352

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