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SQL exercises

July 29, 17:04 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: 15142

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	7	241	181	2026-07-29 14:43:59		141
2	Williams B. (BW)	35	66	236	2026-07-29 13:21:56		223
3	Williams B. (BW)	35	66	264	2026-07-29 13:21:27		223
4	Williams B. (BW)	35	66	308	2026-07-23 14:59:30	2026-07-29 13:19:06	8540
5	Sarkis'yan G. (gennadi_s)	15	176	203	2026-07-28 14:11:50	2026-07-28 15:38:56	87
6	Filippkin D.V. (_dimon_)	3	259	264	2026-07-23 15:54:45	2026-07-23 15:55:46	1
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04	2026-07-23 15:27:06	747609
8	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		8931
9	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		11699
10	Sarkis'yan G. (gennadi_s)	15	176	202	2026-07-19 14:34:28	2026-07-20 18:03:08	1649
11	Krasovskij E.A. (pegoopik)	1	265	242	2026-07-18 10:53:25	2026-07-18 19:12:40	499
12	Sarkis'yan G. (gennadi_s)	15	176	242	2026-07-18 13:38:46	2026-07-18 13:39:00	0
13	Koptel'tsev V. (selber)	19	130	198	2026-07-12 02:54:38		25330
14	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		61826
15	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		96255
16	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		116860
17	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		129919
18	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		140147
19	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		140989
20	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		171701
21	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		264928
22	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		340768
23	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		552472
24	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		786595
25	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		798783
26	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		946636
27	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		947944
28	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		970695
29	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1080233
30	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1192298
31	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1192298
32	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1221454
33	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1247975
34	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1261607
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1327649
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1330963
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1333352
38	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1366017
39	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1418280
40	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1442857
41	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1759434
42	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1863423
43	Koptel'tsev V. (selber)	19	130	237	2022-11-06 21:16:51		1959588
44	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1998796
45	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2115706
46	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2262287
47	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2514043
48	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2642395
49	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2776749
50	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2818936
51	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2822683
52	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3064749
53	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3132112
54	Koptel'tsev V. (selber)	19	130	259	2020-06-24 00:22:07		3206442
55	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3271396
56	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3279367
57	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3318882
58	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3342609
59	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3652998
60	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3680280
61	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3688342
62	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3706626
63	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3750704
64	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3890679
65	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3988947
66	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3992128
67	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4134319
68	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4194866
69	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4248225
70	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4295690
71	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4387757
72	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4391666
73	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4391745
74	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4414374
75	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4428531
76	F (uff)	65	25	95	2018-01-22 15:57:03		4478467
77	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4530136
78	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4567606
79	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4569367
80	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4570435
81	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4608150
82	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4635267
83	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4668330
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4744975
85	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4791520
86	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4795669
87	F (uff)	65	25	185	2017-06-01 10:27:49		4817197
88	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4857070
89	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4918961
90	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5153864
91	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5189337
92	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5268560
93	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5398896
94	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5440995
95	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5610416
96	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5642103
97	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5676102
98	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5685463
99	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5711310
100	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5725614

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