Recent leaders activity at "SQL Exercises"

SQL exercises

September 09, 07:39 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: 15169

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	184	207	2026-09-08 14:40:13		1020
2	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		2849
3	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20		3931
4	Vinogradova S.M. (Tigra1)	148	0	137	2026-08-30 14:15:52	2026-08-31 22:19:52	1924
5	Vinogradova S.M. (Tigra1)	148	0	136	2026-08-28 10:40:33	2026-08-29 10:38:18	1438
6	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		16918
7	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		27427
8	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		57246
9	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		60138
10	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		68847
11	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		71615
12	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		121741
13	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		156170
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		189835
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		200063
16	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		200905
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		231616
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		324844
19	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		400684
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		612387
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		846510
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		858698
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1006551
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1007859
25	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1030610
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1140149
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1252213
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1252214
29	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1281369
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1307890
31	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1321522
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1387564
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1390878
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1393268
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1425933
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1478195
37	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1502772
38	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1819349
39	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1923338
40	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2019503
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2058712
42	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2175621
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2322202
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2573959
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2702311
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2836665
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2878851
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2882599
49	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3124665
50	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3192028
51	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3266358
52	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3331312
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3339282
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3378797
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3402524
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3712914
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3740196
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3748258
59	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3766541
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3810620
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3950595
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4048862
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4052043
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4194234
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4254782
66	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4308141
67	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4355606
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4447672
69	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4451581
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4451660
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4474290
72	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4488446
73	F (uff)	65	25	95	2018-01-22 15:57:03		4538383
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4590051
75	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4627521
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4629282
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4630351
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4668066
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4695182
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4728245
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4804890
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4851435
83	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4855584
84	F (uff)	65	25	185	2017-06-01 10:27:49		4877112
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4916985
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4978876
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5213780
88	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5249252
89	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5328476
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5458811
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5500910
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5670331
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5702019
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5736017
95	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5745379
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5771225
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5785529
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5787215
99	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5798824
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5802395

Home
Week news

Certification

SQL exercises

HELP

Performance

Profile
References

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