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SQL exercises

July 05, 16:12 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: 15104

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	71	22	166	2025-07-05 10:06:56	2025-07-05 10:51:15	44
2	Sarkis'yan G. (gennadi_s)	24	99	175	2025-07-04 14:31:46		1541
3	Sarkis'yan G. (gennadi_s)	24	99	174	2025-06-29 14:46:07	2025-06-30 13:01:05	1335
4	Makarov I.A. (_Bkmz_)	71	22	170	2025-06-29 10:21:01	2025-06-29 12:50:43	150
5	Makarov I.A. (_Bkmz_)	71	22	204	2025-06-28 10:03:44	2025-06-28 12:34:50	151
6	Sarkis'yan G. (gennadi_s)	24	99	173	2025-06-22 15:29:39	2025-06-27 10:00:13	6871
7	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		113980
8	Fomichev A.V. (Fomichev)	195	0	7	2025-02-25 02:16:37		188036
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		196134
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		226382
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		238571
12	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		386424
13	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		387732
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		410482
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		437923
16	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		520021
17	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		632086
18	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		632086
19	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		661242
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		687763
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		701394
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		767437
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		770751
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		773140
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		805805
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		850981
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		858068
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		882644
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1127676
30	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1165232
31	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1199222
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1303211
33	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1399375
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1438584
35	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1555493
36	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1702075
37	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1816124
38	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1953831
39	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2082183
40	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2216537
41	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2258724
42	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2262471
43	Kozharinov A. (bubala)	206	0	10	2020-09-30 09:55:07		2504537
44	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2571900
45	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2646230
46	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2711184
47	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2719155
48	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2758670
49	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2782397
50	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3092786
51	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3120068
52	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3128130
53	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3146413
54	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3190492
55	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3330467
56	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3428735
57	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3431916
58	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3574107
59	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3634654
60	Voevutskij S.A. (SergLK)	211	0	45	2018-07-01 13:19:14		3688013
61	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3735478
62	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3827545
63	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3831454
64	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3831532
65	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3854162
66	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3868319
67	F (uff)	64	25	95	2018-01-22 15:57:03		3918255
68	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		3969924
69	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4007394
70	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		4009155
71	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4010223
72	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4047938
73	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4075055
74	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4108118
75	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4184763
76	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4231307
77	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4235456
78	F (uff)	64	25	185	2017-06-01 10:27:49		4256984
79	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4296857
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4358748
81	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4593652
82	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4629125
83	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4708348
84	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4838684
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4880783
86	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		5050203
87	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5081891
88	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		5115890
89	Fomichev A.V. (Fomichev)	195	0	101	2015-10-07 11:21:04		5125251
90	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5151098
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5165401
92	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5167087
93	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5178697
94	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5182268
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5185599
96	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5229284
97	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5230551
98	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5239113
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5248843
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5257470

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