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SQL exercises

January 17, 22:05 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: 15322

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Petrov Y. (YuriPetrov)	32	76	198	2026-01-17 16:11:10		355
2	Sarkis'yan G. (gennadi_s)	16	142	190	2026-01-11 13:55:22	2026-01-12 11:21:39	1286
3	Sarkis'yan G. (gennadi_s)	16	142	189	2025-12-25 14:50:28	2026-01-05 12:53:05	15723
4	Petrov Y. (YuriPetrov)	32	76	233	2026-01-03 02:07:30	2026-01-05 04:08:29	3001
5	Koptel'tsev V. (selber)	21	119	149	2025-12-24 22:13:41	2026-01-04 12:09:17	15236
6	Lukov D.R. (Gendalf)	242	0	32	2025-12-05 01:36:21		63150
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		274853
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		396573
9	Fomichev A.V. (Fomichev)	198	0	7	2025-02-25 02:16:37		470629
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		478728
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		508976
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		521164
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		669017
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		670325
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		693076
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		720516
17	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		802615
18	Slavutinskij V.V. (Vasilko)	448	0	5	2024-04-22 17:26:35		914679
19	Slavutinskij V.V. (Vasilko)	448	0	7	2024-04-22 17:26:21		914680
20	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		943835
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		970356
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		983988
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1050030
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1053344
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1055734
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1088399
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1133574
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1140661
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1165238
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1410270
31	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1447826
32	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1481815
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1585804
34	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1681969
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1721178
36	Lukov D.R. (Gendalf)	242	0	90	2022-07-21 11:18:50		1838087
37	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1984668
38	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2236425
39	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2364777
40	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2499131
41	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2541317
42	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2545065
43	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2787131
44	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2854494
45	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2928824
46	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		2993778
47	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3001749
48	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3041263
49	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3064990
50	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3375380
51	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3402662
52	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3410724
53	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3429007
54	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3473086
55	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3613061
56	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3711329
57	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3714509
58	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3856700
59	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3917248
60	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3970607
61	Zyrin V.E. (Vezyr)	541	0	29	2018-05-29 14:14:19		4018072
62	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4110138
63	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4114047
64	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4114126
65	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4136756
66	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4150912
67	F (uff)	65	25	95	2018-01-22 15:57:03		4200849
68	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4252517
69	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4289987
70	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4291748
71	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4292817
72	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4330532
73	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4357648
74	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4390711
75	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4467356
76	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4513901
77	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4518050
78	F (uff)	65	25	185	2017-06-01 10:27:49		4539578
79	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4579451
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4641342
81	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4876246
82	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4911719
83	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4990942
84	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5121277
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5163376
86	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5332797
87	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5364485
88	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5398483
89	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5407845
90	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5433691
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5447995
92	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5449681
93	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5461290
94	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5464861
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5468192
96	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5511878
97	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5513145
98	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5521707
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5531437
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5540064

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