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SQL exercises

December 26, 02:16 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: 15346

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	17	134	189	2025-12-25 14:50:28		686
2	Koptel'tsev V. (selber)	21	116	149	2025-12-24 22:13:41		1683
3	Petrov Y. (YuriPetrov)	33	71	238	2025-12-21 01:40:19	2025-12-21 02:29:32	49
4	Petrov Y. (YuriPetrov)	33	71	235	2025-12-20 17:12:38	2025-12-20 17:59:08	47
5	Petrov Y. (YuriPetrov)	33	71	239	2025-12-20 00:52:23	2025-12-20 01:31:37	39
6	Petrov Y. (YuriPetrov)	33	71	236	2025-12-19 00:26:50	2025-12-19 01:32:46	66
7	Kostomarov A.V. (al29)	5	247	88	2025-12-16 13:08:02	2025-12-16 14:28:09	80
8	Sarkis'yan G. (gennadi_s)	17	134	188	2025-11-30 13:49:15	2025-12-15 18:47:38	21898
9	Lukov D.R. (Gendalf)	242	0	32	2025-12-05 01:36:21		30280
10	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		241983
11	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		363704
12	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		437760
13	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		445858
14	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		476106
15	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		488295
16	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		636148
17	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		637456
18	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		660206
19	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		687647
20	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		769745
21	Slavutinskij V.V. (Vasilko)	448	0	5	2024-04-22 17:26:35		881810
22	Slavutinskij V.V. (Vasilko)	448	0	7	2024-04-22 17:26:21		881810
23	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		910966
24	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		937487
25	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		951118
26	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1017161
27	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1020475
28	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1022864
29	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1055529
30	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1100705
31	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1107792
32	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1132368
33	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1377400
34	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1414956
35	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1448946
36	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1552935
37	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1649099
38	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1688308
39	Lukov D.R. (Gendalf)	242	0	90	2022-07-21 11:18:50		1805218
40	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1951799
41	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2203555
42	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2331907
43	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2466261
44	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2508448
45	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2512195
46	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2754261
47	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2821624
48	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2895954
49	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		2960908
50	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2968879
51	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3008394
52	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3032121
53	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3342510
54	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3369792
55	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3377854
56	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3396137
57	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3440216
58	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3580191
59	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3678459
60	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3681640
61	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3823831
62	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3884378
63	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3937737
64	Zyrin V.E. (Vezyr)	540	0	29	2018-05-29 14:14:19		3985202
65	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4077269
66	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4081178
67	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4081256
68	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4103886
69	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4118043
70	F (uff)	65	25	95	2018-01-22 15:57:03		4167979
71	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4219648
72	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4257118
73	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4258879
74	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4259947
75	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4297662
76	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4324779
77	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4357842
78	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4434487
79	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4481031
80	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4485181
81	F (uff)	65	25	185	2017-06-01 10:27:49		4506709
82	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4546581
83	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4608473
84	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4843376
85	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4878849
86	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4958072
87	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5088408
88	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5130507
89	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5299927
90	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5331615
91	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5365614
92	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5374975
93	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5400822
94	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5415125
95	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5416811
96	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5428421
97	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5431992
98	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5435323
99	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5479009
100	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5480275

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