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SQL exercises

July 18, 10:48 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: 15132

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Chebykin D. (GriGrim)	38	62	32	2025-07-14 00:48:13	2025-07-14 23:43:31	1375
2	Sarkis'yan G. (gennadi_s)	24	102	176	2025-07-14 10:47:08		5761
3	Chebykin D. (GriGrim)	38	62	5	2025-07-13 18:57:04	2025-07-14 00:44:45	348
4	Makarov I.A. (_Bkmz_)	62	26	162	2025-07-13 09:28:38	2025-07-13 11:51:03	142
5	Sarkis'yan G. (gennadi_s)	24	102	175	2025-07-04 14:31:46	2025-07-12 13:47:07	11475
6	Makarov I.A. (_Bkmz_)	62	26	209	2025-07-12 09:51:05	2025-07-12 11:17:41	87
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		10655
8	Makarov I.A. (_Bkmz_)	62	26	177	2025-07-06 09:38:39	2025-07-06 11:56:40	138
9	Makarov I.A. (_Bkmz_)	62	26	166	2025-07-05 10:06:56	2025-07-05 10:51:15	44
10	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		132376
11	Fomichev A.V. (Fomichev)	196	0	7	2025-02-25 02:16:37		206432
12	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		214530
13	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		244778
14	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		256967
15	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		404820
16	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		406128
17	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		428878
18	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		456318
19	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		538417
20	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		650482
21	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		650482
22	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		679638
23	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		706159
24	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		719790
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		785833
26	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		789147
27	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		791536
28	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		824201
29	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		869377
30	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		876464
31	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		901040
32	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1146072
33	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1183628
34	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1217618
35	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1321607
36	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1417771
37	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1456980
38	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1573889
39	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1720471
40	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1834520
41	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1972227
42	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2100579
43	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2234933
44	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2277120
45	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2280867
46	Kozharinov A. (bubala)	206	0	10	2020-09-30 09:55:07		2522933
47	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2590296
48	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2664626
49	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2729580
50	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2737551
51	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2777065
52	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2800793
53	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3111182
54	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3138464
55	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3146526
56	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3164809
57	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3208888
58	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3348863
59	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3447131
60	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3450312
61	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3592503
62	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3653050
63	Voevutskij S.A. (SergLK)	211	0	45	2018-07-01 13:19:14		3706409
64	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3753874
65	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3845941
66	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3849850
67	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3849928
68	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3872558
69	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3886715
70	F (uff)	65	25	95	2018-01-22 15:57:03		3936651
71	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		3988320
72	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4025790
73	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		4027551
74	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4028619
75	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4066334
76	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4093451
77	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4126514
78	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4203159
79	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4249703
80	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4253852
81	F (uff)	65	25	185	2017-06-01 10:27:49		4275380
82	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4315253
83	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4377144
84	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4612048
85	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4647521
86	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4726744
87	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4857080
88	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4899179
89	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5068599
90	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5100287
91	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5134286
92	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5143647
93	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5169493
94	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5183797
95	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5185483
96	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5197093
97	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5200664
98	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5203995
99	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5247680
100	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5248947

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