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SQL exercises

September 21, 00:34 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: 15185

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11		1139
2	Sarkis'yan G. (gennadi_s)	14	187	53	2026-09-18 17:50:12	2026-09-19 18:45:38	1495
3	Krasovskij E.A. (pegoopik)	1	266	53	2026-09-18 15:39:39	2026-09-18 15:39:44	0
4	Krasovskij E.A. (pegoopik)	1	266	303	2026-09-11 20:13:12	2026-09-11 20:13:42	1
5	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20	2026-09-11 10:52:12	7003
6	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
7	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		19703
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		33773
9	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		44281
10	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		74101
11	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		76993
12	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		85701
13	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		88469
14	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		138596
15	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		173025
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		206689
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		216917
18	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		217759
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		248471
20	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		341698
21	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		417538
22	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		629241
23	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		863365
24	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		875553
25	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1023406
26	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1024714
27	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1047464
28	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1157003
29	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1269068
30	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1269068
31	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1298224
32	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1324745
33	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1338377
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1404419
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1407733
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1410122
37	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1442787
38	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1495050
39	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1519627
40	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1836204
41	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1940193
42	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2036358
43	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2075566
44	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2192476
45	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2339057
46	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2590813
47	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2719165
48	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2853519
49	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2895706
50	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2899453
51	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3141519
52	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3208882
53	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3283212
54	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3348166
55	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3356137
56	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3395652
57	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3419379
58	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3729768
59	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3757050
60	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3765112
61	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3783396
62	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3827474
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3967449
64	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4065717
65	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4068898
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4211089
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4271636
68	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4324995
69	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4372460
70	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4464527
71	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4468436
72	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4468515
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4491144
74	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4505301
75	F (uff)	65	25	95	2018-01-22 15:57:03		4555237
76	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4606906
77	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4644376
78	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4646137
79	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4647205
80	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4684920
81	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4712037
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4745100
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4821745
84	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4868290
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4872439
86	F (uff)	65	25	185	2017-06-01 10:27:49		4893967
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4933840
88	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4995731
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5230634
90	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5266107
91	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5345330
92	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5475666
93	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5517765
94	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5687186
95	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5718873
96	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5752872
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5762233
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5788080
99	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5802384
100	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5804070

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