Recent leaders activity at "SQL Exercises"

SQL exercises

May 23, 12:38 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: 15087

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	59	29	195	2026-05-23 10:27:06		131
2	Vyazovetskov A.S. (alex_v)	11	223	155	2026-05-22 11:18:23		1520
3	Filippkin D.V. (_dimon_)	3	259	24	2026-05-21 10:12:47	2026-05-21 10:19:45	7
4	Vyazovetskov A.S. (alex_v)	11	223	230	2026-05-18 12:59:52	2026-05-20 15:56:52	3057
5	Makarov I.A. (_Bkmz_)	59	29	24	2026-05-16 11:11:27	2026-05-16 11:27:42	16
6	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		11473
7	Vyazovetskov A.S. (alex_v)	11	223	220	2026-05-13 11:51:48	2026-05-14 20:04:14	1932
8	Vyazovetskov A.S. (alex_v)	11	223	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
9	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		20114
10	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		33173
11	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		43401
12	Vyazovetskov A.S. (alex_v)	11	223	264	2026-04-22 19:15:17		44243
13	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		74955
14	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		168182
15	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		244022
16	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		455725
17	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		577446
18	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		659600
19	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		689848
20	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		702037
21	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		849890
22	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		851198
23	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		873948
24	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		983487
25	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1095552
26	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1095552
27	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1124708
28	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1151229
29	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1164860
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1230903
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1234217
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1236606
33	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1269271
34	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1321534
35	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1346110
36	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1662688
37	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1766677
38	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1862841
39	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1902050
40	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2018959
41	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2165541
42	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2417297
43	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2545649
44	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2680003
45	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2722190
46	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2725937
47	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2968003
48	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3035366
49	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3109696
50	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3174650
51	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3182621
52	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3222135
53	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3245863
54	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3556252
55	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3583534
56	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3591596
57	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3609879
58	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3653958
59	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3793933
60	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3892201
61	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3895382
62	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4037573
63	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4098120
64	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4151479
65	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4198944
66	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4291010
67	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4294920
68	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4294998
69	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4317628
70	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4331785
71	F (uff)	65	25	95	2018-01-22 15:57:03		4381721
72	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4433390
73	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4470859
74	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4472621
75	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4473689
76	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4511404
77	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4538521
78	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4571584
79	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4648229
80	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4694773
81	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4698922
82	F (uff)	65	25	185	2017-06-01 10:27:49		4720450
83	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4760323
84	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4822214
85	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5057118
86	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5092591
87	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5171814
88	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5302149
89	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5344249
90	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5513669
91	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5545357
92	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5579356
93	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5588717
94	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5614563
95	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5628867
96	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5630553
97	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5642163
98	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5645734
99	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5649065
100	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5692750

Home
Week news

Certification

SQL exercises

HELP

Performance

Profile
References

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