Recent leaders activity at "SQL Exercises"

SQL exercises

February 11, 09:08 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: 15377

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	16	149	194	2026-02-10 15:42:58		1045
2	Sarkis'yan G. (gennadi_s)	16	149	193	2026-02-02 14:48:13	2026-02-06 14:23:09	5735
3	Komarov A.N. (Shveda Saulya)	43	52	149	2023-05-14 13:36:07	2026-02-05 21:16:28	1437580
4	Sarkis'yan G. (gennadi_s)	16	149	192	2026-01-29 14:47:50	2026-01-29 16:40:41	113
5	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		22532
6	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		98372
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		310075
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		431796
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		513950
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		544198
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		556387
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		704240
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		705548
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		728298
15	Komarov A.N. (Shveda Saulya)	43	52	157	2024-09-04 13:29:47		755739
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		837837
17	Slavutinskij V.V. (Vasilko)	452	0	5	2024-04-22 17:26:35		949902
18	Slavutinskij V.V. (Vasilko)	452	0	7	2024-04-22 17:26:21		949902
19	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		979058
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		1005579
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1019210
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1085253
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1088567
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1090956
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1123621
26	Komarov A.N. (Shveda Saulya)	43	52	150	2023-11-22 17:11:28		1168797
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1175884
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1200460
29	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1483048
30	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1517038
31	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1621027
32	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1717191
33	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1756400
34	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1873310
35	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2019891
36	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2271647
37	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2399999
38	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2534353
39	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2576540
40	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2580287
41	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2822353
42	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2889716
43	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2964046
44	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3029000
45	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3036971
46	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3076486
47	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3100213
48	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3410602
49	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3437884
50	Romanov K.Yu. (kostik)	309	0	12	2019-07-25 08:42:10		3445946
51	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3464229
52	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3508308
53	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3648283
54	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3746551
55	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3749732
56	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3891923
57	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3952470
58	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		4005829
59	Zyrin V.E. (Vezyr)	543	0	29	2018-05-29 14:14:19		4053294
60	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4145361
61	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4149270
62	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4149348
63	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4171978
64	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4186135
65	F (uff)	65	25	95	2018-01-22 15:57:03		4236071
66	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4287740
67	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4325210
68	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4326971
69	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4328039
70	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4365754
71	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4392871
72	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4425934
73	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4502579
74	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4549123
75	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4553273
76	F (uff)	65	25	185	2017-06-01 10:27:49		4574801
77	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4614673
78	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4676565
79	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4911468
80	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4946941
81	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5026164
82	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5156500
83	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5198599
84	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5368019
85	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5399707
86	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5433706
87	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5443067
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5468914
89	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5483217
90	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5484903
91	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5496513
92	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5500084
93	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5503415
94	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5547101
95	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5548367
96	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5556929
97	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5566659
98	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5575286
99	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5805725
100	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5807352

Home
Week news

Certification

SQL exercises

HELP

Performance

Profile
References

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