Recent leaders activity at "SQL Exercises"

SQL exercises

September 01, 14:42 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: 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		5821
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		16330
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		46149
11	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		49041
12	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		57750
13	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		60518
14	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		110644
15	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		145073
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		178738
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		188966
18	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		189808
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		220519
20	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		313747
21	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		389587
22	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		601290
23	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		835413
24	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		847601
25	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		995454
26	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		996762
27	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1019513
28	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1129052
29	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1241116
30	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1241117
31	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1270272
32	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1296793
33	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1310425
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1376467
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1379781
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1382171
37	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1414836
38	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1467098
39	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1491675
40	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1808252
41	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1912241
42	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2008406
43	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2047615
44	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2164524
45	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2311105
46	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2562862
47	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2691214
48	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2825568
49	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2867754
50	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2871502
51	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3113568
52	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3180931
53	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3255261
54	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3320215
55	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3328186
56	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3367700
57	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3391427
58	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3701817
59	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3729099
60	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3737161
61	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3755444
62	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3799523
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3939498
64	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4037766
65	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4040946
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4183137
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4243685
68	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4297044
69	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4344509
70	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4436575
71	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4440484
72	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4440563
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4463193
74	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4477349
75	F (uff)	65	25	95	2018-01-22 15:57:03		4527286
76	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4578954
77	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4616424
78	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4618185
79	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4619254
80	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4656969
81	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4684085
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4717148
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4793793
84	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4840338
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4844487
86	F (uff)	65	25	185	2017-06-01 10:27:49		4866015
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4905888
88	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4967779
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5202683
90	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5238156
91	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5317379
92	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5447714
93	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5489813
94	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5659234
95	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5690922
96	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5724920
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5734282
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5760128
99	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5774432
100	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5776118

Home
Week news

Certification

SQL exercises

HELP

Performance

Profile
References

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