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SQL exercises

February 05, 17:21 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: 15388

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	16	147	193	2026-02-02 14:48:13		4473
2	Sarkis'yan G. (gennadi_s)	16	147	192	2026-01-29 14:47:50	2026-01-29 16:40:41	113
3	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		14385
4	Sarkis'yan G. (gennadi_s)	16	147	191	2026-01-19 15:25:23	2026-01-25 17:31:40	8766
5	Fomichev A.V. (Fomichev)	196	0	7	2025-02-25 02:16:37	2026-01-24 00:54:53	479438
6	Lukov D.R. (Gendalf)	243	0	32	2025-12-05 01:36:21		90225
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		301928
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		423648
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		505803
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		536051
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		548240
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		696092
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		697400
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		720151
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		747591
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		829690
17	Slavutinskij V.V. (Vasilko)	451	0	5	2024-04-22 17:26:35		941754
18	Slavutinskij V.V. (Vasilko)	451	0	7	2024-04-22 17:26:21		941755
19	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		970911
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		997431
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1011063
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1077105
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1080419
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1082809
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1115474
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1160650
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1167736
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1192313
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1437345
30	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1474901
31	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1508891
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1612879
33	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1709044
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1748253
35	Lukov D.R. (Gendalf)	243	0	90	2022-07-21 11:18:50		1865162
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2011743
37	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2263500
38	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2391852
39	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2526206
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2568392
41	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2572140
42	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2814206
43	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2881569
44	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2955899
45	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3020853
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3028824
47	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3068338
48	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3092065
49	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3402455
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3429737
51	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3437799
52	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3456082
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3500161
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3640136
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3738404
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3741585
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3883776
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3944323
59	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3997682
60	Zyrin V.E. (Vezyr)	543	0	29	2018-05-29 14:14:19		4045147
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4137213
62	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4141122
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4141201
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4163831
65	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4177988
66	F (uff)	65	25	95	2018-01-22 15:57:03		4227924
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4279592
68	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4317062
69	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4318823
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4319892
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4357607
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4384724
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4417786
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4494431
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4540976
76	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4545125
77	F (uff)	65	25	185	2017-06-01 10:27:49		4566653
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4606526
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4668417
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4903321
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4938794
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5018017
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5148352
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5190452
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5359872
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5391560
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5425559
88	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5434920
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5460766
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5475070
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5476756
92	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5488365
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5491937
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5495268
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5538953
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5540220
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5548782
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5558512
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5567139
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5797578

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