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SQL exercises

March 23, 00:14 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: 15408

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Zajtsev V.S. (Sleeping)	22	118	32	2026-03-19 13:18:10	2026-03-19 14:58:33	100
2	Zajtsev V.S. (Sleeping)	22	118	264	2026-03-19 12:44:12	2026-03-19 13:12:45	29
3	Zajtsev V.S. (Sleeping)	22	118	239	2026-03-19 11:19:45	2026-03-19 12:26:56	67
4	Zajtsev V.S. (Sleeping)	22	118	150	2023-04-18 11:40:16	2026-03-19 11:14:56	1535015
5	Polyakov V.M. (rock_4)	133	0	138	2026-02-20 17:03:21		43631
6	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		79598
7	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		155438
8	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		367142
9	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		488862
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		571016
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		601265
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		613453
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		761306
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		762614
15	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		785365
16	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		894903
17	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		1006968
18	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		1006968
19	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1036124
20	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1062645
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1076277
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1142319
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1145633
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1148023
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1180687
26	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1232950
27	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1257527
28	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1574104
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1678093
30	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1774258
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1813466
32	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		1930376
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2076957
34	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2328714
35	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2457065
36	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2591419
37	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2633606
38	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2637353
39	Kozharinov A. (bubala)	210	0	10	2020-09-30 09:55:07		2879419
40	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2946782
41	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3021112
42	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3086066
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3094037
44	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3133552
45	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3157279
46	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3467668
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3494950
48	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3503012
49	Kordyum A. (alko58)	229	0	12	2019-07-12 15:58:52		3521296
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3565374
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3705349
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3803617
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3806798
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3948989
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		4009536
56	Voevutskij S.A. (SergLK)	216	0	45	2018-07-01 13:19:14		4062895
57	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4110360
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4202427
59	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4206336
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4206415
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4229044
62	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4243201
63	F (uff)	65	25	95	2018-01-22 15:57:03		4293138
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4344806
65	Kordyum A. (alko58)	229	0	101	2017-11-21 18:18:43		4382276
66	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4384037
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4385105
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4422820
69	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4449937
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4483000
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4559645
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4606190
73	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4610339
74	F (uff)	65	25	185	2017-06-01 10:27:49		4631867
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4671740
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4733631
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4968534
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5004007
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5083230
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5213566
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5255665
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5425086
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5456773
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5490772
85	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5500133
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5525980
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5540284
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5541970
89	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5553579
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5557150
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5560481
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5604167
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5605434
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5613996
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5623726
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5632353
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5862791
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5864418
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5912578
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5940738

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