Last week rating | SQL Exercises

October 15, 22:19 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
  • Visual simulation (painting)
  • Exercises voting

Forums

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

Certification

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

HELP

Query optimization

For employers

Support SQL-EX.RU

Last-week results

n_sel - number of select exercises solved this week;
sel_all - total number of solved select exercises;
sel_scores - sum of points on select exercises earned this week;
dml_scores - sum of points on dml exercises earned this week;
scores - total sum of points earned this week;

Involved in rating: 12229

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	>Gribanova V.S. (coolvictory)	19	39	34	0	34	1172	15 Oct 2019
2	Vasil'ev A.A. (TruthFinder)	15	64	26	0	26	711	14 Oct 2019
3	>Marchenkov (Decoe)	10	62	20	0	20	745	15 Oct 2019
4	road261 (Road261)	9	42	18	0	18	1133	15 Oct 2019
5	Kuydinov D. (sh4rk717)	8	68	14	0	14	648	15 Oct 2019
6	>Drelaswyn (Drelaswyn)	10	12	13	5	18	2349	15 Oct 2019
7	Vestnikov D.A. (letsstudybegin)	6	81	12	0	12	390	12 Oct 2019
8	>Osipova T. (Mirt)	6	60	12	0	12	868	14 Oct 2019
9	Igor (Igor_lai)	6	28	10	0	10	1454	11 Oct 2019
10	Buldenkov D.A. (eXeQuThor)	2	131	9	0	9	140	13 Oct 2019
11	Popov A.A. (WZt3k)	6	21	8	0	8	1850	14 Oct 2019
12	Poltorakin (poltorakin)	6	6	8	0	8	5663	15 Oct 2019
13	>Yanin M.Yu. (Mikhkha)	3	26	7	0	7	1514	15 Oct 2019
14	>Gireiko E. (Zubryonok)	3	70	6	0	6	439	15 Oct 2019
15	>Solov'ev E.I. (ty7ic)	4	59	6	0	6	663	15 Oct 2019
16	Samorodov F.A. (Spetsialist)	5	6	6	0	6	2500	13 Oct 2019
17	>Yolokhov V.Yu. (Vladimir Elokhov)	4	9	6	0	6	4848	15 Oct 2019
18	Krasil'nikova A.M. (krabis_nn)	6	6	6	0	6	6095	15 Oct 2019
19	>Komov K.N. (zigmund1)	3	55	5	0	5	904	15 Oct 2019
20	Kralichev I.E. (Kralichev)	5	5	5	0	5	6471	15 Oct 2019
21	Fonteneleva O.D. (Les'ka_panda)	5	5	5	0	5	6495	15 Oct 2019
22	Matveeva E.M. (Ekaterina Mikhajlovna)	5	5	5	0	5	6498	15 Oct 2019
23	>Kirilov A.V. (Arbaiter)	3	3	4	27	31	5668	15 Oct 2019
24	Chernov D.V. (Kursist)	1	265	4	0	4	7	15 Oct 2019
25	Chashkov A.V. (ozzyzulka)	3	6	4	0	4	3035	08 Oct 2019
26	Distanov (B@TON)	2	4	4	0	4	5568	11 Oct 2019
27	>Karapetyan T.M. (T I K O)	2	78	3	0	3	401	15 Oct 2019
28	Litvinov V.V. (NewsMan)	2	70	3	0	3	453	14 Oct 2019
29	Kiseleva E. (Kiselena)	1	35	3	0	3	1334	13 Oct 2019
30	Stepanov M. (matthewz)	2	6	3	0	3	3029	11 Oct 2019
31	Doschenko V.N. (mcrain)	1	253	2	2	4	3	15 Oct 2019
32	Morgunova L. (amfisbena)	1	85	2	0	2	396	15 Oct 2019
33	Zvorykin D.A. (migdal-or)	1	46	2	0	2	1043	15 Oct 2019
34	Burdenko Ya. (Bsl)	1	39	2	0	2	1167	12 Oct 2019
35	Kostyuchenko N. (4e_Guevara)	1	17	2	0	2	1996	11 Oct 2019
36	Mezina S.G. (Svetlana0819)	1	2	2	0	2	7859	15 Oct 2019
37	Igorevic A.A. (Windground)	1	1	2	0	2	7961	12 Oct 2019
38	Shestipalov D.S. (Knight of Storm)	2	2	2	0	2	8744	15 Oct 2019
39	>Golosova N.P. (mazooka)	1	1	2	0	2	8837	15 Oct 2019
40	Popov S.V. (PopovSV)	1	63	1	18	19	726	10 Oct 2019
41	>Boldyrev G.V. (grif85)	1	9	1	2	3	2499	15 Oct 2019
42	Smol'nikova M.A. (fora)	1	64	1	0	1	707	11 Oct 2019
43	Zubov D.Z. (Dmitrij84)	1	14	1	0	1	3613	14 Oct 2019
44	Sulimin (Sleeva)	1	1	1	0	1	8727	15 Oct 2019
45	Spiridonov D.A. (Diiimkaaaaaa)	1	2	1	0	1	8828	15 Oct 2019
46	Revyako E.N. (Elena Revyako)	1	1	1	0	1	8854	10 Oct 2019
47	vladKorolod V.K. (vladKorolod)	1	1	1	0	1	8867	15 Oct 2019
48	whoknows (whoknowsme)	1	1	1	0	1	12222	14 Oct 2019
49	Dolgikh A.I. (YNWA_2092)	1	1	1	0	1	12223	14 Oct 2019
50	>Pronin (TryTon)	1	1	1	0	1	12226	15 Oct 2019
51	Rabc (Nikname12)	0		0	27	27		15 Oct 2019
52	Budkin D. (pulgasar)	0		0	23	23	4465	15 Oct 2019
53	Nedoshivin M.A. (nedosh)	0		0	23	23		09 Oct 2019
54	Khartulyari N. (dryhlya)	0		0	23	23		13 Oct 2019
55	ogarkov I.O. (YapYop)	0		0	23	23		12 Oct 2019
56	Shmelev (alex222333444)	0		0	20	20		12 Oct 2019
57	sasdasd K.S. (kps1212)	0		0	20	20		13 Oct 2019
58	Barsukov A. (AlexandrSunLight)	0		0	20	20		14 Oct 2019
59	lugovoy (Ant2323)	0		0	20	20		10 Oct 2019
60	Ryabtsev S. (Thirstz)	0		0	17	17	4514	15 Oct 2019
61	Barakovskij M.A. (Aintrivius)	0		0	16	16		15 Oct 2019
62	Malinovskij A. (alexmal)	0		0	15	15	5013	15 Oct 2019
63	Herasimovich M. (Marek1)	0		0	13	13	4881	15 Oct 2019
64	Mahammadli M. (Alibank)	0		0	13	13	4882	15 Oct 2019
65	Kaptsova O.A. (anbleick)	0		0	13	13	8835	14 Oct 2019
66	skakova (diaska)	0	7	0	12	12	3217	15 Oct 2019
67	Hill D.A. (DannyHill)	0		0	11	11	6321	14 Oct 2019
68	Zabluda V. (vlad_zabluda)	0		0	11	11	8832	14 Oct 2019
69	Wing (Skiko)	0		0	10	10		15 Oct 2019
70	Rymdyonok A.A. (alena_el)	0		0	9	9	5621	15 Oct 2019
71	Kirillov D.G. (kdg)	0		0	9	9	5622	15 Oct 2019
72	Papu A.G. (artempapu)	0		0	9	9	5803	15 Oct 2019
73	L (lilhad)	0		0	9	9	6322	15 Oct 2019
74	Dashkevych M.Y. (Maryna Dashkevych)	0		0	9	9	8834	15 Oct 2019
75	Leksikova N. (Keltana)	0		0	9	9		13 Oct 2019
76	Sok A.S. (Alfavod)	0		0	9	9		13 Oct 2019
77	Vovk V. (Viktoriia_Vovk)	0		0	9	9		10 Oct 2019
78	Bus (Mariannka)	0		0	9	9		13 Oct 2019
79	Gidirimski A.G. (ghidik)	0		0	9	9		12 Oct 2019
80	Stupak D.D. (Danylo ST)	0		0	9	9		12 Oct 2019
81	Il'enko (shalena_elena)	0		0	9	9		11 Oct 2019
82	Chemeris I. (Igorechek)	0		0	8	8	5804	15 Oct 2019
83	Ryabtseva (californication)	0		0	8	8	7012	15 Oct 2019
84	Zaynarbekov A. (ZAlibek45)	0		0	8	8		15 Oct 2019
85	Samojlov I.D. (igor_samoylov)	0		0	8	8		15 Oct 2019
86	Shick A.-. (Anka123)	0		0	8	8		10 Oct 2019
87	Daria M. (dunovenievetra)	0		0	8	8		12 Oct 2019
88	Kravtsov V.A. (CarryG)	0		0	8	8		13 Oct 2019
89	Kosenko (kosenkoandry1)	0		0	7	7	7009	14 Oct 2019
90	Ku (MutterMutter)	0		0	7	7		14 Oct 2019
91	Stepanov M.A. (___STEP___)	0		0	6	6	7954	14 Oct 2019
92	Pometkova E. (elena.pometkova)	0		0	6	6		13 Oct 2019
93	Vinnichenko V. (Vadym1980)	0		0	6	6		13 Oct 2019
94	Bojchuk A.S. (Azzuro)	0		0	5	5	7010	15 Oct 2019
95	Merkushev A.V. (Sanchox)	0		0	5	5	7011	15 Oct 2019
96	Demyanenko D.S. (demd)	0		0	5	5	7660	15 Oct 2019
97	Badmaev A. (badmaeff)	0		0	5	5	8839	15 Oct 2019
98	Kravchenko S.I. (Kravchenko S.I.)	0		0	5	5		15 Oct 2019
99	Mironovich S.O. (Sergey19)	0		0	5	5		13 Oct 2019
100	Caraman E.L. (CaterinaCaraman)	0		0	5	5		12 Oct 2019
101	Maksimov I. (PATRICK555)	0		0	5	5		09 Oct 2019
102	Sidorova (putanica)	0		0	5	5		11 Oct 2019
103	Fominykh V.A. (Tera_F)	0		0	4	4	7659	14 Oct 2019
104	Firsova A. (Angelika28)	0		0	4	4	7661	15 Oct 2019
105	Zhoolego N.N. (Junniz)	0		0	4	4	7662	15 Oct 2019
106	Mitasova E. (E-katerina)	0		0	4	4	7958	15 Oct 2019
107	Tsaplan (OlenaT)	0		0	4	4		15 Oct 2019
108	Borisova A. (Stacey1107)	0		0	4	4		12 Oct 2019
109	Dubova (Db_Anna1)	0		0	4	4		10 Oct 2019
110	Serdyuk K.Yu. (evil_pumpkin)	0		0	3	3	7953	14 Oct 2019
111	Muravskij D.S. (dmurav)	0		0	3	3	7955	14 Oct 2019
112	Shipitsin V.V. (vladislav_shipitsin)	0		0	3	3	7956	15 Oct 2019
113	Krishtal P.L. (Chrishtall)	0		0	3	3	7957	15 Oct 2019
114	dsadsadsad S.S. (keldreek)	0		0	3	3		11 Oct 2019
115	Shyshkanov (AlexShysh)	0		0	3	3		11 Oct 2019
116	Cher (EvilMilk)	0		0	3	3		12 Oct 2019
117	Syrskij A. (sanchezy)	0		0	3	3		11 Oct 2019
118	tkachenko (9183458774)	0		0	3	3		12 Oct 2019
119	Atrashevskaya A.V. (anastasiaStudent)	0		0	3	3		11 Oct 2019
120	Abrekov A. (abrekov)	0		0	3	3		11 Oct 2019
121	Milanov (danyamilanov)	0		0	3	3		12 Oct 2019
122	Roskach A.S. (Silmane)	0		0	3	3		15 Oct 2019
123	Roskach E.N. (Nemuru)	0		0	3	3		11 Oct 2019
124	IraIra I.I. (IraIra12)	0		0	3	3		11 Oct 2019
125	Vaichyk I. (Fransssua)	0		0	3	3		13 Oct 2019
126	sol (babyu)	0		0	3	3		10 Oct 2019
127	Volodin (Eiden)	0		0	3	3		13 Oct 2019
128	Petrov P.P. (Gangsta228)	0		0	3	3		10 Oct 2019
129	Erenchin S. (erenchin)	0		0	3	3		10 Oct 2019
130	Kuznetsov I.S. (vane4ka)	0		0	3	3		12 Oct 2019
131	katasonov (bell322)	0		0	3	3		15 Oct 2019
132	Leont'eva E. (lizal)	0		0	3	3		11 Oct 2019
133	Gurov N.G. (Bad_Gurich1)	0		0	3	3		09 Oct 2019
134	Pavlyuk (Pashka_T)	0	69	0	2	2	536	15 Oct 2019
135	Mirgaleeva S.S. (SafiyaMir)	0		0	2	2	8833	14 Oct 2019
136	Smit A. (Qwerty125)	0		0	2	2	8836	15 Oct 2019
137	Altigar (Altigar)	0		0	2	2	8838	15 Oct 2019
138	Diego (diegolopzr)	0		0	2	2	8840	15 Oct 2019
139	karpova (renard195)	0		0	2	2		11 Oct 2019
140	Orlova L.V. (Larisa1609)	0		0	2	2		10 Oct 2019
141	Romanov K. (Princ)	0		0	2	2		12 Oct 2019
142	Petrov D. (dpetrov21)	0		0	2	2		09 Oct 2019
143	Timchenko (PB-77)	0	1	0	1	1	7014	15 Oct 2019
144	katumina A.P. (Tsertseya)	0		0	1	1	12220	14 Oct 2019
145	Sobolec (sanjoyz)	0		0	1	1	12221	15 Oct 2019
146	Sukhorukov D.A. (dimidrol298)	0		0	1	1	12224	15 Oct 2019
147	Kravchenko A.A. (Android)	0		0	1	1	12225	14 Oct 2019
148	Naumov N.S. (SoQuietLorn)	0		0	1	1	12227	15 Oct 2019
149	Xom (El_Alucard)	0		0	1	1	12228	15 Oct 2019
150	L (gena56)	0		0	1	1	12229	15 Oct 2019
151	sychev I. (syigor)	0		0	1	1		14 Oct 2019
152	Ul'yanov (MurdocMM)	0		0	1	1		14 Oct 2019
153	Ss (Topepo88)	0		0	1	1		12 Oct 2019
154	sirbu E.C. (lenka_syrbu)	0		0	1	1		12 Oct 2019
155	barbaqadze I. (irakli12)	0		0	1	1		15 Oct 2019
156	Bukreev (DimedroN)	0		0	1	1		14 Oct 2019
157	Soroko (Pokamolodoy)	0		0	1	1		13 Oct 2019

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References