Today's statistics at "SQL Exercises"

January 07, 14:01 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.

Ratings

  • 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

Statistics

  • 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)

Forums

  • Learning stage
  • Rating stages
  • Favorites
  • Search
  • Blogs

Certification

  • About certification
  • Certified professionals
  • Statistics
  • Statistics over regions (map)
  • Confirm certificate

HELP

Query optimization

For employers

Support SQL-EX.RU

Today statistics

nLog - number of logins;
nSelEx - number of select exercises solved today;
lastEx - number of last select exercise solved;
nDmlEx - number of dml exercises solved today;
Scores - sum of points on the exercises solved today (select and dml);
numLrnEx, LrnScores - number of exercises solved today and sum of points on learning stage

No	Surname	nLog	nSelEx	lastEx	nDmlEx	Scores	numLrnEx	LrnScores
1	Kokhova Yu.A. (CrazyFox3)	1			15	21	ban	ban
2	Yastrebov D.D. (Yakimori)	1			5	5
3	Pupochko T.K. (AdeptSem)	1					10	20
4	Gershuk (blit9)	3					9	13
5	Tarasov O. (OlegTarasov)	1					7	12
6	Pontikus (Andranikus)	1					9	10
7	Gur (kennytypo1337)	1					7	9
8	khitova A.K. (pavetra)	1					7	9
9	Hesenzade (Hasanzade)	1					6	8
10	Zajtsev E. (zaegorrr)	1					6	7
11	Lebedev V. (Lebedev_VV)	1					4	7
12	Lukutova A.A. (Lukutok)	1					5	6
13	Dorofeeva (userName12345)	1					4	6
14	Tarakanov V.V. (ChXos)	2					3	6
15	Dvornichenko E.A. (Chaika_)	1					3	6
16	balabaev (smthhappen64)	3					5	5
17	Fedorova V.N. (verun)	1					3	5
18	Samandov S. (Suleyman.Samandov)	1					3	5
19	Sizonets (svetleishiy avgustin)	3					4	4
20	Botina D. (daria2025)	1					4	4
21	Polkri P.V. (Petr_Polkri_67)	1					4	4
22	Kozlov A. (Antoa)	1					ban	ban
23	Fedoruk I.A. (yvan123)	1					2	4
24	qwe R.Y. (TheWrongOne992)	1					ban	ban
25	Chepiga D.D. (Dmitrii256)	2					3	3
26	Ivanov (bigdick69)	2					3	3
27	Platonov A. (Golden-Times)	1					3	3
28	Zhigalova V.A. (butterbread)	1					3	3
29	Ekhlakov I. (pomidor2525)	1					3	3
30	Kotova (elilia)	2					2	3
31	Eeee K. (HrenZnaet)	1					2	3
32	Kun D.M. (salomorja)	1					2	3
33	Baisheva F.Kh. (Data_Master)	1					1	3
34	Akhm A. (zefirius)	1					2	2
35	Khusainova V. (KhVR99)	1					2	2
36	Savin T. (jeffrey_epstein_1488)	1					2	2
37	Ilya I.I. (Ilya_123)	2					1	2
38	Livshits (@Valeriy)	1					1	2
39	Panicheva V.D. (_Vika_)	1					1	2
40	Kolomin A. (valanchik)	1					1	2
41	Zinnatulin R.M. (Snuf_210)	1					1	2
42	Kovalenko A.E. (problemsolver9095)	1					1	2
43	Khodenok L. (lina_hodenok)	1					1	2
44	Shejko Z. (Sheiz)	2					1	1
45	Suslov A.A. (Susel 5757)	2					1	1
46	P'yankov (IVAN PI)	1					ban	ban
47	Eremina A.V. (Arcanum)	1					1	1
48	Mityukov E.D. (hezky)	1					1	1
49	Dmitriev P.E. (forthemotherrus)	2
50	Vdovin S. (Rujan)	2
51	Sarkis'yan G. (gennadi_s)	2
52	Rumyantsev D.A. (DenisRumyantsev23isbo4)	2
53	Vukolov A. (al.vuk)	2
54	Ramteke H.T. (Himanshu Ramteke)	2
55	Tidke S.P. (Abhi_Somesh)	2
56	Pomortsev (Romanych6666)	2
57	pranjale A.M. (ciphera)	2
58	Dakare A.S. (anu0702)	2
59	pardhi G.L. (@Gayu)	2
60	more T.D. (Trishti)	2
61	Kawle S.D. (Sandesh01)	2
62	Zryumov E.A. (Zryumov)	1
63	Krasovskij E.A. (pegoopik)	1
64	Kurchatov I.V. (Antratsitovets)	1
65	Koptel'tsev V. (selber)	1
66	chaika (chaika_ds)	1
67	Mali V.A. (WMali)	1
68	Lazareva E. (lea_22)	1
69	Vinogradova S.M. (Tigra1)	1
70	Stotsky V. (sl4cker)	1
71	Kolmogorova (NadK)	1
72	Tikhonova E.N. (evti)	1
73	Smith (tibacityblues)	1
74	Guzhevnikov V. (Hafany)	1
75	Li V.R. (SHeG99)	1
76	Ivanov I.I. (vlad91)	1
77	Andryushin (nurglet)	1
78	ekalim E. (ekalim)	1					ban	ban
79	Palasukhin D.S. (Nitrinos)	1
80	Malakhov A.V. (JLaKeR)	1
81	Babaev U. (Usmen)	1
82	Korsakov I. (k0rsakov)	1
83	Sh Yu.N. (enken)	1
84	Wooster (Nick Bucklow)	1
85	Yakupov R. (Bloomder)	1
86	Galajko P. (tonymarakony)	1
87	Ryabykin M.V. (Mikhail1704)	1
88	Kondratyuk M. (Kondrat0206)	1
89	Brazhnikova L.A. (L47)	1
90	Khudorozhko A. (Oleksij)	1
91	Abdullina (yulia_not_yulia)	1
92	Dettsel' (AlexDET)	1
93	Najik (Najik7)	1
94	Nedajvoda S.A. (Ned_SG)	1
95	Ivanov (userTest1)	1
96	Zamotajlo A.A. (Zamelo)	1
97	P I.*. (IrinaPetr)	1
98	Aliyev V. (Vussy)	1
99	Alimova (Character666)	1
100	Karpov I.E. (Karpov_Igor)	1
101	Savel'ev A.V. (Aleksandr_SQL_EX)	1					ban	ban
102	Odegov A.I. (KovroLitik)	1
103	R. (Wra1th)	1
104	Rau M.A. (mary6)	1
105	Korolev R.V. (zouker)	1
106	Komov S.M. (Komov S. M.)	1					ban	ban
107	Lysykh V.K. (Usilitel')	1
108	Krasil'nikov A.A. (Ellipsis1906)	1
109	Gregory (Really_cool_boy2000)	1
110	Rots (myrtyx))	1
111	Ibragimov (Rinatr)	1
112	Kabkov (AKabkov)	1
113	... (Igor...)	1
114	Ryabov A. (Slavander)	1
115	Vinogradova E. (-Helen-)	1					ban	ban
116	Arzumanova M.V. (marasql13)	1
117	Safronov P.A. (Paulus73)	1
118	Nosov A.A. (Aleksej (FTO))	1
119	Kekov (andrewlom25)	1
120	romPro18 A.A. (romPro19)	1
121	Belyak (TheTester)	1
122	Kim A.M. (sashaKATA)	1
123	Mahalle P.P. (Piyush Mahalle)	1
124	Shaniware H.P. (Himanshu Shaniware)	1
125	Dhage A.S. (Ajinkya01)	1
126	Tembhurne P.P. (prajkta)	1
127	Jadhav A.R. (INT3rrup7)	1
128	Patrikar S.M. (sanika11)	1
129	Patle V.K. (Psycho127)	1
130	Emtsev I.V. (Midirka)	1
131	Fayzullayev (Lutfullo)	1
132	Kolesov S.B. (Kolesov Stepan)	1
133	Gracheva (VG0302)	1
134	Chervyakova (Sora)	1
135	Ganeev R.V. (Ravil-1989)	1
136	Cherentaev V. (Gresee)	1
137	Trofimchuk M. (Palmer212)	1
138	R Z.S. (rmzn)	1
139	Eliseev (wtf chto ya zdes zabyl...)	1
140	Shcherbakova (Katou)	1
141	Mukhtarov A.Zh. (ArsenKZ)	1
142	Sebastian A. (Anandhu)	1
143	Selokar A.R. (Anjali0307)	1
144	kamble (Meetkumar)	1
145	sontakke V.V. (vanshsontakke)	1
146	Ramteke (himanshuuu)	1
147	Unregistered	20

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References