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SQL exercises

October 30, 04:01 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: 14827

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	48	39	151	2024-10-22 18:17:29		10664
2	Sarkis'yan G. (gennadi_s)	48	39	150	2024-10-11 11:54:31	2024-10-22 14:28:53	15994
3	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		28572
4	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		29881
5	Frolov K.A. (Murderface_)	132	0	138	2024-09-23 14:49:59		52631
6	Komarov A.N. (Shveda Saulya)	44	49	157	2024-09-04 13:29:47		80071
7	Zajtsev V.S. (Sleeping)	20	112	164	2024-07-09 13:11:22		162170
8	Slavutinskij V.V. (Vasilko)	432	0	5	2024-04-22 17:26:35		274235
9	Slavutinskij V.V. (Vasilko)	432	0	7	2024-04-22 17:26:21		274235
10	Williams B. (BW)	33	66	141	2024-04-02 11:30:28		303391
11	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		329911
12	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		343543
13	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	305	2024-01-19 17:35:31		409586
14	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	306	2024-01-17 10:21:39		412899
15	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	71	2024-01-15 18:32:03		415289
16	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		447954
17	Komarov A.N. (Shveda Saulya)	44	49	150	2023-11-22 17:11:28		493130
18	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		500217
19	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		524793
20	Komarov A.N. (Shveda Saulya)	44	49	149	2023-05-14 13:36:07		769825
21	Zajtsev V.S. (Sleeping)	20	112	150	2023-04-18 11:40:16		807381
22	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		841371
23	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		945359
24	Koptel'tsev V. (selber)	24	97	237	2022-11-06 21:16:51		1041524
25	Borisenkov D.V. (xuser)	96	9	173	2022-10-10 15:48:20		1080733
26	Lukov D.R. (Gendalf)	234	0	90	2022-07-21 11:18:50		1197642
27	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1344223
28	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1458273
29	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1595980
30	Fedevych V.I. (labuch_fedev)	35	65	221	2021-07-20 17:09:05		1724332
31	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1858686
32	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		1900873
33	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		1904620
34	Kozharinov A. (bubala)	198	0	10	2020-09-30 09:55:07		2146686
35	Samarin A. (not.yet.sql.master)	136	0	112	2020-08-14 15:12:10		2214049
36	Koptel'tsev V. (selber)	24	97	259	2020-06-24 00:22:07		2288379
37	Samarin A. (not.yet.sql.master)	136	0	138	2020-05-09 21:48:04		2353333
38	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2361304
39	Fedevych V.I. (labuch_fedev)	35	65	226	2020-04-06 22:22:48		2400818
40	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2424546
41	Fokin A. (Vizitor )	42	52	217	2019-08-18 21:46:14		2734935
42	Bazavluk M. (DoNotLook)	94	9	141	2019-07-30 23:04:12		2762217
43	Romanov K.Yu. (kostik)	293	0	12	2019-07-25 08:42:10		2770279
44	Kordyum A. (alko58)	215	0	12	2019-07-12 15:58:52		2788562
45	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		2832641
46	Mal'tsev A.V. (Palkin)	110	8	218	2019-03-06 20:25:17		2972616
47	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3070884
48	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		3074065
49	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		3216256
50	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3276803
51	Voevutskij S.A. (SergLK)	201	0	45	2018-07-01 13:19:14		3330162
52	Zyrin V.E. (Vezyr)	521	0	29	2018-05-29 14:14:19		3377627
53	Chebykin D. (GriGrim)	37	62	228	2018-03-26 15:47:45		3469693
54	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3473603
55	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3473681
56	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3496311
57	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3510468
58	F (uff)	64	25	95	2018-01-22 15:57:03		3560404
59	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3612072
60	Kordyum A. (alko58)	215	0	101	2017-11-21 18:18:43		3649542
61	Zajtsev V.S. (Sleeping)	20	112	190	2017-11-20 12:57:31		3651304
62	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3652372
63	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3690087
64	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3717204
65	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		3750267
66	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3826912
67	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3873456
68	Vorob'ev E.V. (Johnnymnemonic)	150	0	138	2017-06-16 09:15:49		3877605
69	F (uff)	64	25	185	2017-06-01 10:27:49		3899133
70	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		3939006
71	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4000897
72	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4235801
73	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4271274
74	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4350497
75	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4480832
76	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		4522932
77	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4692352
78	Maslyaev V.S. (Velmont)	88	11	170	2015-11-06 14:01:20		4724040
79	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		4758039
80	Fomichev A.V. (Fomichev)	188	0	101	2015-10-07 11:21:04		4767400
81	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4793246
82	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4807550
83	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		4809236
84	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4820846
85	Chebykin D. (GriGrim)	37	62	217	2015-08-28 21:04:30		4824417
86	Halushka B. (halushka)	45	46	211	2015-08-26 13:33:28		4827748
87	Maslyaev V.S. (Velmont)	88	11	140	2015-07-27 05:27:50		4871433
88	Khromulyak O.M. (ChOleg)	119	5	150	2015-07-26 08:20:51		4872700
89	Chebykin D. (GriGrim)	37	62	216	2015-07-20 09:39:02		4881262
90	Halushka B. (halushka)	45	46	143	2015-07-13 15:28:55		4890992
91	Halushka B. (halushka)	45	46	204	2015-07-07 15:42:03		4899619
92	Skorohod I. (Dracul4ik)	77	15	256	2015-01-28 15:03:11		5130058
93	Skorohod I. (Dracul4ik)	77	15	252	2015-01-27 11:56:41		5131684
94	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5179845
95	Grishin (alvigr)	78	15	185	2014-12-05 11:56:29		5208005
96	Fajnberg M.L. (burnall)	72	21	122	2014-10-31 12:46:14		5258355
97	Kabanets E.G. (azkaban)	92	9	209	2014-09-27 01:00:23		5308021
98	Sivoglazov M.A. (Gaizenberg)	65	24	178	2014-08-26 23:17:37		5352764
99	Perfilov B.V. (B o r i s)	99	9	29	2014-02-23 19:20:39		5617960
100	Utyonkov M.N. (=Maxim=)	47	42	255	2014-02-03 12:39:35		5647162

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