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SQL exercises

March 25, 19:22 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: 15043

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	32	72	161	2025-02-16 16:50:58	2025-03-23 18:16:22	50485
2	Suprun D. (TimonSP)	75	15	32	2025-03-22 18:19:38	2025-03-22 18:45:45	26
3	Suprun D. (TimonSP)	75	15	5	2025-03-22 17:42:48	2025-03-22 18:14:33	32
4	Makarov I.A. (_Bkmz_)	93	9	131	2025-03-22 12:30:59	2025-03-22 14:27:35	117
5	Makarov I.A. (_Bkmz_)	93	9	130	2025-03-22 09:14:30	2025-03-22 12:07:04	173
6	Krasovskij E.A. (pegoopik)	1	259	237	2025-03-20 14:35:57	2025-03-20 18:32:29	237
7	Krasovskij E.A. (pegoopik)	1	259	234	2025-03-12 19:48:30	2025-03-13 00:22:46	274
8	Koptel'tsev V. (selber)	23	103	217	2025-02-26 20:10:00		38832
9	Fomichev A.V. (Fomichev)	191	0	7	2025-02-25 02:16:37		41346
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		49444
11	Chuvstvin M. (chuvstvinmaxim)	87	11	141	2025-01-29 11:09:56		79693
12	Chuvstvin M. (chuvstvinmaxim)	87	11	258	2025-01-21 00:01:28		91881
13	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		239734
14	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		241042
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		263792
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		291233
17	Zajtsev V.S. (Sleeping)	20	112	164	2024-07-09 13:11:22		373331
18	Slavutinskij V.V. (Vasilko)	437	0	5	2024-04-22 17:26:35		485396
19	Slavutinskij V.V. (Vasilko)	437	0	7	2024-04-22 17:26:21		485396
20	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		514552
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		541073
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		554705
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		620747
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		624061
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		626450
26	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		659115
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		704291
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		711378
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		735955
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		980986
31	Zajtsev V.S. (Sleeping)	20	112	150	2023-04-18 11:40:16		1018542
32	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1052532
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1156521
34	Koptel'tsev V. (selber)	23	103	237	2022-11-06 21:16:51		1252686
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1291894
36	Lukov D.R. (Gendalf)	238	0	90	2022-07-21 11:18:50		1408804
37	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1555385
38	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1669434
39	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1807141
40	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		1935493
41	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2069847
42	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2112034
43	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2115781
44	Kozharinov A. (bubala)	202	0	10	2020-09-30 09:55:07		2357847
45	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2425210
46	Koptel'tsev V. (selber)	23	103	259	2020-06-24 00:22:07		2499540
47	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2564494
48	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2572465
49	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2611980
50	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2635707
51	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		2946096
52	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		2973378
53	Romanov K.Yu. (kostik)	300	0	12	2019-07-25 08:42:10		2981440
54	Kordyum A. (alko58)	219	0	12	2019-07-12 15:58:52		2999724
55	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3043802
56	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3183777
57	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3282045
58	Grishunin M.F. (MikhailFG)	91	10	144	2018-12-26 09:36:27		3285226
59	Shindin A.V. (AlShin)	24	99	45	2018-09-18 15:45:28		3427417
60	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3487964
61	Voevutskij S.A. (SergLK)	206	0	45	2018-07-01 13:19:14		3541323
62	Zyrin V.E. (Vezyr)	530	0	29	2018-05-29 14:14:19		3588788
63	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3680855
64	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3684764
65	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3684843
66	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3707472
67	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3721629
68	F (uff)	64	25	95	2018-01-22 15:57:03		3771565
69	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3823234
70	Kordyum A. (alko58)	219	0	101	2017-11-21 18:18:43		3860704
71	Zajtsev V.S. (Sleeping)	20	112	190	2017-11-20 12:57:31		3862465
72	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3863533
73	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3901248
74	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3928365
75	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		3961428
76	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		4038073
77	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4084618
78	Vorob'ev E.V. (Johnnymnemonic)	154	0	138	2017-06-16 09:15:49		4088767
79	F (uff)	64	25	185	2017-06-01 10:27:49		4110295
80	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		4150168
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4212059
82	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4446962
83	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4482435
84	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4561658
85	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4691994
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4734093
87	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4903514
88	Maslyaev V.S. (Velmont)	89	11	170	2015-11-06 14:01:20		4935201
89	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		4969200
90	Fomichev A.V. (Fomichev)	191	0	101	2015-10-07 11:21:04		4978561
91	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		5004408
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5018712
93	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5020398
94	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5032007
95	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5035578
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5038909
97	Maslyaev V.S. (Velmont)	89	11	140	2015-07-27 05:27:50		5082595
98	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5083862
99	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5092423
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5102154

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