Recent leaders activity at "SQL Exercises"

SQL exercises

September 19, 11:39 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.
NOTE: Your browser should support Cookies and Javascript to provide correct usage of this site. If you use content filter, it should allow opening child windows to explore help pages.

  • Top 100
  • Top 100 on latest exercises
  • "Liberal" rating
  • Olympic rating
  • TOP 100 of Learning Stage
  • Rating by summation of ranks
  • Top 10 (photos)
  • Last-week results
  • Rating of second-stage exercises (average)
  • Rating of 2nd-stage exercises (median)
  • Author's rating  • 2nd stage rating up to exercise:
   enter No 
  • Rating on the exercise:
   enter No
  • Optimistic rating
   enter factor

  • Today statistics
  • Site's old residents
  • Recent leaders activity
  • Сhanges in exercises' TOP 10
  • Results' chart

SQL exercises

  • Site rules
  • SELECT (learning stage)
  • SELECT (learning stage,
      choosing DBMS)
  • SELECT (rating stages)
  • DML 
  • Transact-SQL tests
  • Data simulation
  • Data simulation (DML);
  • Visual simulation (painting)
  • Exercises voting (SELECT)
  • Exercises voting (DML)

  • Learning stage
  • Rating stages
  • Favorites
  • Search
  • Blogs

Certification

  • About certification
  • Certified professionals
  • Statistics
  • Statistics over regions (map)
  • Confirm certificate

HELP

Query optimization

Developers & Thanks

For employers

Support SQL-EX.RU

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: 15184

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	187	53	2026-09-18 17:50:12		1069
2	Krasovskij E.A. (pegoopik)	1	266	53	2026-09-18 15:39:39	2026-09-18 15:39:44	0
3	Krasovskij E.A. (pegoopik)	1	266	303	2026-09-11 20:13:12	2026-09-11 20:13:42	1
4	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20	2026-09-11 10:52:12	7003
5	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
6	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		17488
7	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		31557
8	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		42066
9	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		71885
10	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		74778
11	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		83486
12	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		86254
13	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		136380
14	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		170809
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		204474
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		214702
17	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		215544
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		246256
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		339483
20	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		415323
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		627026
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		861149
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		873338
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1021190
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1022498
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1045249
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1154788
28	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1266852
29	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1266853
30	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1296009
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1322529
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1336161
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1402204
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1405517
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1407907
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1440572
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1492834
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1517411
39	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1833989
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1937977
41	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2034142
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2073351
43	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2190260
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2336841
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2588598
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2716950
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2851304
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2893490
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2897238
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3139304
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3206667
52	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3280997
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3345951
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3353922
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3393436
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3417164
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3727553
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3754835
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3762897
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3781180
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3825259
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3965234
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4063502
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4066683
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4208874
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4269421
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4322780
68	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4370245
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4462311
70	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4466221
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4466299
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4488929
73	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4503086
74	F (uff)	65	25	95	2018-01-22 15:57:03		4553022
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4604690
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4642160
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4643922
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4644990
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4682705
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4709822
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4742885
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4819529
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4866074
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4870223
85	F (uff)	65	25	185	2017-06-01 10:27:49		4891751
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4931624
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4993515
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5228419
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5263892
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5343115
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5473450
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5515550
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5684970
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5716658
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5750657
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5760018
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5785864
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5800168
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5801854
100	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5813463

Home
Week news

Certification

SQL exercises

HELP

Performance

Profile
References

Copyright SQL-EX © 2002-2026. All rights reserved.
contact