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SQL exercises

September 01, 01:44 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: 15155

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vinogradova S.M. (Tigra1)	148	0	137	2026-08-30 14:15:52	2026-08-31 22:19:52	1924
2	Vinogradova S.M. (Tigra1)	148	0	136	2026-08-28 10:40:33	2026-08-29 10:38:18	1438
3	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		5043
4	Vinogradova S.M. (Tigra1)	148	0	135	2026-08-26 09:13:14	2026-08-26 13:14:03	241
5	Vinogradova S.M. (Tigra1)	148	0	134	2026-08-24 15:47:47	2026-08-24 21:53:04	365
6	Sarkis'yan G. (gennadi_s)	14	184	206	2026-08-15 14:26:50	2026-08-21 15:41:57	8715
7	Frolov K.A. (Murderface_)	135	0	24	2026-08-21 11:04:04	2026-08-21 11:17:39	14
8	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		15552
9	Komarov A.N. (Shveda Saulya)	35	68	160	2026-05-09 13:24:21	2026-08-20 17:24:55	148561
10	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		45371
11	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		48263
12	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		56972
13	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		59740
14	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		109866
15	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		144295
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		177960
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		188188
18	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		189030
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		219741
20	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		312969
21	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		388809
22	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		600512
23	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		834635
24	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		846823
25	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		994676
26	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		995984
27	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1018735
28	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1128274
29	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1240338
30	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1240339
31	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1269494
32	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1296015
33	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1309647
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1375689
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1379003
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1381393
37	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1414058
38	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1466320
39	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1490897
40	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1807474
41	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1911463
42	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2007628
43	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2046837
44	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2163746
45	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2310327
46	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2562084
47	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2690436
48	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2824790
49	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2866976
50	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2870724
51	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3112790
52	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3180153
53	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3254483
54	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3319437
55	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3327407
56	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3366922
57	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3390649
58	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3701039
59	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3728321
60	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3736383
61	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3754666
62	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3798745
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3938720
64	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4036987
65	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4040168
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4182359
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4242907
68	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4296266
69	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4343731
70	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4435797
71	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4439706
72	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4439785
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4462415
74	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4476571
75	F (uff)	65	25	95	2018-01-22 15:57:03		4526508
76	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4578176
77	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4615646
78	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4617407
79	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4618476
80	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4656191
81	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4683307
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4716370
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4793015
84	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4839560
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4843709
86	F (uff)	65	25	185	2017-06-01 10:27:49		4865237
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4905110
88	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4967001
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5201905
90	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5237378
91	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5316601
92	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5446936
93	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5489035
94	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5658456
95	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5690144
96	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5724142
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5733504
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5759350
99	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5773654
100	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5775340

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