Recent leaders activity at "SQL Exercises"

SQL exercises

May 23, 19:53 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: 15089

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Krasovskij E.A. (pegoopik)	1	262	303	2026-05-23 15:29:26		264
2	Makarov I.A. (_Bkmz_)	56	32	195	2026-05-23 10:27:06	2026-05-23 15:11:29	284
3	Sarkis'yan G. (gennadi_s)	15	170	303	2026-05-23 13:24:38	2026-05-23 13:24:42	0
4	Vyazovetskov A.S. (alex_v)	11	223	155	2026-05-22 11:18:23		1955
5	Filippkin D.V. (_dimon_)	3	259	24	2026-05-21 10:12:47	2026-05-21 10:19:45	7
6	Vyazovetskov A.S. (alex_v)	11	223	230	2026-05-18 12:59:52	2026-05-20 15:56:52	3057
7	Makarov I.A. (_Bkmz_)	56	32	24	2026-05-16 11:11:27	2026-05-16 11:27:42	16
8	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		11908
9	Vyazovetskov A.S. (alex_v)	11	223	220	2026-05-13 11:51:48	2026-05-14 20:04:14	1932
10	Vyazovetskov A.S. (alex_v)	11	223	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
11	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		20549
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		33608
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		43836
14	Vyazovetskov A.S. (alex_v)	11	223	264	2026-04-22 19:15:17		44678
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		75390
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		168617
17	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		244457
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		456161
19	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		577881
20	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		660035
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		690284
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		702472
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		850325
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		851633
25	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		874384
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		983922
27	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1095987
28	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1095987
29	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1125143
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1151664
31	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1165296
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1231338
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1234652
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1237041
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1269706
36	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1321969
37	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1346546
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1663123
39	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1767112
40	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1863277
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1902485
42	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2019395
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2165976
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2417732
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2546084
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2680438
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2722625
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2726372
49	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2968438
50	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3035801
51	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3110131
52	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3175085
53	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3183056
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3222571
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3246298
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3556687
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3583969
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3592031
59	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3610315
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3654393
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3794368
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3892636
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3895817
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4038008
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4098555
66	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4151914
67	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4199379
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4291446
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4295355
70	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4295434
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4318063
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4332220
73	F (uff)	65	25	95	2018-01-22 15:57:03		4382156
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4433825
75	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4471295
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4473056
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4474124
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4511839
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4538956
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4572019
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4648664
82	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4695209
83	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4699358
84	F (uff)	65	25	185	2017-06-01 10:27:49		4720886
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4760759
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4822650
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5057553
88	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5093026
89	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5172249
90	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5302585
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5344684
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5514105
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5545792
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5579791
95	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5589152
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5614999
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5629303
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5630989
99	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5642598
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5646169

Home
Week news

Certification

SQL exercises

HELP

Performance

Profile
References

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