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SQL exercises

July 16, 00:11 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: 15144

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Timofeeva E.V. (Umrikhina)	26	96	24	2026-07-15 10:55:13	2026-07-15 11:24:36	29
2	Safronov P.A. (Paulus73)	134	0	137	2026-07-13 10:19:08	2026-07-14 00:12:15	833
3	Koptel'tsev V. (selber)	19	130	198	2026-07-12 02:54:38		5597
4	Safronov P.A. (Paulus73)	134	0	136	2026-07-10 10:15:27	2026-07-10 15:00:38	285
5	Safronov P.A. (Paulus73)	134	0	135	2026-07-09 10:47:01	2026-07-10 00:27:56	821
6	Safronov P.A. (Paulus73)	134	0	134	2026-07-08 10:21:00	2026-07-08 15:48:42	328
7	Safronov P.A. (Paulus73)	134	0	133	2026-07-07 10:28:03	2026-07-07 11:59:53	92
8	Koptel'tsev V. (selber)	19	130	241	2026-05-23 20:23:43	2026-07-07 07:38:38	64035
9	Safronov P.A. (Paulus73)	134	0	132	2026-07-06 11:09:01	2026-07-06 18:52:03	463
10	Safronov P.A. (Paulus73)	134	0	131	2026-07-03 10:10:01	2026-07-03 11:05:45	56
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		42093
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		76522
13	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		97127
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		110187
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		120415
16	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		121256
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		151968
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		245196
19	Lukov D.R. (Gendalf)	246	0	32	2025-12-05 01:36:21		321035
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		532739
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		736614
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		766862
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		779050
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		926903
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		928211
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		950962
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1060500
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1172565
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1172565
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1201721
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1228242
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1241874
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1307916
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1311230
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1313620
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1346285
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1398547
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1423124
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1739701
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1843690
41	Koptel'tsev V. (selber)	19	130	237	2022-11-06 21:16:51		1939855
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1979063
43	Lukov D.R. (Gendalf)	246	0	90	2022-07-21 11:18:50		2095973
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2242554
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2494311
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2622663
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2757017
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2799203
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2802951
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3045017
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3112380
52	Koptel'tsev V. (selber)	19	130	259	2020-06-24 00:22:07		3186710
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3251664
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3259634
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3299149
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3322876
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3633266
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3660548
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3668610
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3686893
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3730971
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3870946
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3969214
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3972395
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4114586
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4175133
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4228493
68	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4275957
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4368024
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4371933
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4372012
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4394641
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4408798
74	F (uff)	65	25	95	2018-01-22 15:57:03		4458735
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4510403
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4547873
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4549634
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4550702
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4588417
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4615534
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4648597
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4725242
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4771787
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4775936
85	F (uff)	65	25	185	2017-06-01 10:27:49		4797464
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4837337
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4899228
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5134132
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5169604
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5248828
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5379163
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5421262
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5590683
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5622370
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5656369
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5665731
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5691577
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5705881
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5707567
100	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5719176

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