Recent leaders activity at "SQL Exercises"

SQL exercises

September 04, 00:43 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: 15157

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		9301
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	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		19810
7	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		49629
8	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		52522
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		61230
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		63998
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		114124
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		148553
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		182218
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		192446
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		193288
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		224000
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		317227
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		393067
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		604770
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		838893
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		851082
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		998934
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1000243
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1022993
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1132532
26	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1244597
27	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1244597
28	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1273753
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1300273
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1313905
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1379948
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1383261
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1385651
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1418316
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1470579
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1495155
37	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1811733
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1915721
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2011886
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2051095
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2168004
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2314585
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2566342
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2694694
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2829048
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2871235
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2874982
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3117048
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3184411
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3258741
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3323695
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3331666
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3371180
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3394908
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3705297
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3732579
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3740641
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3758924
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3803003
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3942978
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4041246
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4044427
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4186618
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4247165
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4300524
66	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4347989
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4440055
68	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4443965
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4444043
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4466673
71	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4480830
72	F (uff)	65	25	95	2018-01-22 15:57:03		4530766
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4582434
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4619904
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4621666
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4622734
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4660449
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4687566
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4720629
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4797274
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4843818
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4847967
83	F (uff)	65	25	185	2017-06-01 10:27:49		4869495
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4909368
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4971259
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5206163
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5241636
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5320859
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5451194
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5493294
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5662714
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5694402
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5728401
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5737762
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5763608
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5777912
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5779598
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5791208
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5794779
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5798110

Home
Week news

Certification

SQL exercises

HELP

Performance

Profile
References

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