Last week rating | SQL Exercises

January 20, 15:17 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: 12362

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	>Tymochko T. (Sunny_boy)	22	57	40	0	40	1153	20 Jan 2020
2	Kvochkin V. (ASEVlad)	7	38	16	0	16	1199	14 Jan 2020
3	>Tyannikov V.P. (TVP)	12	24	16	0	16	3164	20 Jan 2020
4	Bagirov R. (lord_potato)	10	33	14	0	14	1366	19 Jan 2020
5	Stepanov M. (matthewz)	4	36	10	0	10	1260	16 Jan 2020
6	Burov I.M. (Student_Ilya)	7	7	9	27	36	4882	19 Jan 2020
7	Bichev K. (gdengam)	3	84	9	0	9	341	18 Jan 2020
8	>Pavlyuk (Pashka_T)	4	77	9	0	9	420	19 Jan 2020
9	Kirilov A.V. (Arbaiter)	4	79	9	0	9	502	17 Jan 2020
10	Kirienko P.A. (KirPeter2020)	6	6	8	0	8	5743	19 Jan 2020
11	Solopov A.N. (alex_solo)	6	82	7	3	10	402	20 Jan 2020
12	Todosiev N. (robot173)	5	5	6	17	23	4017	20 Jan 2020
13	>Gurin A.S. (SenyaGurin)	3	45	6	0	6	1072	20 Jan 2020
14	>Kovalev E.G. (ev-kov)	5	16	6	0	6	3234	20 Jan 2020
15	Gireiko E. (Zubryonok)	2	83	5	0	5	350	17 Jan 2020
16	Gnusov L.Yu. (Delan)	2	83	5	0	5	410	19 Jan 2020
17	Igumnov (HermanI)	4	52	5	0	5	1236	19 Jan 2020
18	>Barakovskij M.A. (Aintrivius)	3	6	5	0	5	3038	20 Jan 2020
19	Chernov D.V. (Kursist)	1	269	4	0	4	4	20 Jan 2020
20	Baskakova M. (baskak)	2	9	4	0	4	2596	17 Jan 2020
21	Zhilyakov M.M. (zhilyakov)	4	19	4	0	4	4045	15 Jan 2020
22	Pusev D.V. (Pusev_Denis)	3	148	3	0	3	70	19 Jan 2020
23	Komov K.N. (zigmund1)	1	71	3	0	3	497	15 Jan 2020
24	Fedakov (Aleks2019)	3	28	3	0	3	1498	20 Jan 2020
25	Pavlova N.S. (NS11)	3	12	3	0	3	2365	19 Jan 2020
26	Litvinov V.V. (NewsMan)	1	83	2	0	2	363	20 Jan 2020
27	Yanin M.Yu. (Mikhkha)	1	47	2	0	2	1034	19 Jan 2020
28	Petrov A.I. (gji)	1	20	2	0	2	1583	16 Jan 2020
29	Zubov D.Z. (Dmitrij84)	1	24	2	0	2	2421	13 Jan 2020
30	Evgenij (reFoxxygen)	2	2	2	0	2	8863	20 Jan 2020
31	>Tremsina J. (tynx)	2	2	2	0	2	8884	20 Jan 2020
32	Zmeev A.V. (Aleksandp)	1	28	1	0	1	1336	17 Jan 2020
33	Poltorakin (poltorakin)	1	21	1	0	1	3582	19 Jan 2020
34	Koroleva V.A. (viwhynot)	1	1	1	0	1	5429	16 Jan 2020
35	Toporov (AlexAlex10)	1	1	1	0	1	12359	18 Jan 2020
36	Volkova E.A. (zamaj)	0		0	27	27	3641	20 Jan 2020
37	Shyla P. (Salt95)	0		0	27	27	6084	18 Jan 2020
38	Kotsyura D.A. (DenisAK)	0		0	27	27	7748	20 Jan 2020
39	Rudnev D.V. (DmitrijWS)	0		0	27	27		18 Jan 2020
40	Chuvilina O. (lamamami)	0		0	25	25	5880	18 Jan 2020
41	Sergienya L. (IQ68)	0		0	23	23	4783	18 Jan 2020
42	Mitsengendler A. (rum)	0		0	23	23	6401	20 Jan 2020
43	Voloshenko (Voloshenko)	0		0	20	20	4293	18 Jan 2020
44	Kritsky D. (Danila.)	0		0	18	18	7749	20 Jan 2020
45	Kizina (Crazy_Rick)	0		0	15	15	4713	18 Jan 2020
46	Popov M.V. (MikhailPopov)	0		0	15	15	5197	18 Jan 2020
47	Krejnin A. (intelgral)	0		0	15	15	5527	17 Jan 2020
48	Buyanov D.S. (Buyanov1032172544)	0		0	11	11	5196	20 Jan 2020
49	Ivanova A. (Avema)	0		0	11	11	5202	20 Jan 2020
50	Agafonova S.N. (Svetlana A.)	0		0	11	11	5204	19 Jan 2020
51	Zolotukhin A.S. (1032173803)	0		0	11	11	5209	19 Jan 2020
52	Gubanova K.D. (1032181565)	0		0	11	11	5210	19 Jan 2020
53	Galkina V. (1032183331)	0		0	11	11	5212	20 Jan 2020
54	Nikonov (1032182327)	0		0	11	11	5213	20 Jan 2020
55	Oorzhak A.O. (Arina Oorzhak)	0		0	11	11	5218	20 Jan 2020
56	Kolesnikov D.S. (King Slime)	0		0	11	11	5219	20 Jan 2020
57	Kolesnikov D.S. (1032182331)	0		0	11	11	5220	20 Jan 2020
58	Polivyanyj D.A. (1032172545)	0		0	11	11	5221	20 Jan 2020
59	Shvets D. (DmitryShv07)	0		0	11	11	5696	17 Jan 2020
60	Mizaushev A.T. (1032172548 MizAT)	0		0	11	11	8939	18 Jan 2020
61	Verich A.M. (anaaaeee)	0		0	11	11	8942	18 Jan 2020
62	Panova (STUD2549)	0		0	11	11		17 Jan 2020
63	Kornyukhina M.A. (pampusyatina)	0		0	11	11		19 Jan 2020
64	Kalimullin R.A. (Der_Graf)	0		0	11	11		15 Jan 2020
65	Maatuk V. (WisamMA)	0		0	11	11		17 Jan 2020
66	Vedernykov I. (Garick)	0		0	11	11		15 Jan 2020
67	Kutuzova T. (tatiasha)	0		0	11	11		15 Jan 2020
68	Sob (dimaarsik)	0		0	10	10		15 Jan 2020
69	Gusakovskij I.V. (PSYshark)	0		0	9	9	5697	19 Jan 2020
70	Quliyeva G.S. (Gulmirocka)	0		0	9	9	5698	20 Jan 2020
71	Edelsa S. (Edelsa)	0		0	9	9		17 Jan 2020
72	Senin A. (ArtemSenin)	0		0	9	9		17 Jan 2020
73	Golovach A.L. (AlGolus)	0		0	8	8		18 Jan 2020
74	asasd (ererter2)	0		0	7	7	6085	19 Jan 2020
75	Scherbakov (tyyu)	0		0	7	7		17 Jan 2020
76	Khafizov (ilnar19)	0		0	7	7		13 Jan 2020
77	Dmitriev V. (Arrrr)	0		0	6	6	8937	17 Jan 2020
78	Osipov I.S. (ois193)	0		0	6	6		18 Jan 2020
79	Vetlugina N. (hna1)	0		0	6	6		20 Jan 2020
80	Shamokhina P.S. (Polina1032173802)	0		0	5	5	7094	19 Jan 2020
81	Belikov (inSide15)	0		0	5	5	7095	20 Jan 2020
82	Volobuev M.S. (Mikhail...)	0		0	5	5		18 Jan 2020
83	Tsyganov S. (serj52)	0		0	4	4	7747	18 Jan 2020
84	Stradukhin E.I. (egm34)	0		0	4	4	7750	20 Jan 2020
85	Lukashevich M. ((usa)tikz)	0		0	4	4	12357	18 Jan 2020
86	Kostin A.A. (alex.kostin)	0		0	4	4		15 Jan 2020
87	Mutali E. (Geroi)	0		0	4	4		17 Jan 2020
88	Kashko A.I. (IQ69)	0		0	4	4		14 Jan 2020
89	Dolya V. (Gumanist)	0		0	4	4		20 Jan 2020
90	Petrov A.A. (AlexDurin)	0		0	4	4		13 Jan 2020
91	Gorobets (korovka)	0		0	3	3	8046	18 Jan 2020
92	Olha (grey_sparrow)	0		0	3	3	8047	19 Jan 2020
93	Khubbatulin M.E. (markhubbatulin56)	0		0	3	3	8048	19 Jan 2020
94	Gaychukov (Egor20)	0		0	3	3	8049	20 Jan 2020
95	Sok M. (mitya77)	0		0	3	3	8050	19 Jan 2020
96	Kuratnik L.A. (leonoid)	0		0	3	3	8051	19 Jan 2020
97	Nedostupov D.O. (Grasp)	0		0	3	3	8052	20 Jan 2020
98	Goncharenko (S4DC0MA)	0		0	3	3	8936	17 Jan 2020
99	Pa P. (RussDragon)	0		0	3	3	8938	18 Jan 2020
100	Pr G. (Grig21)	0		0	3	3	8943	19 Jan 2020
101	Bezrodny (KrasnyPriypat)	0		0	3	3		13 Jan 2020
102	Arsent'ev (and38)	0		0	3	3		20 Jan 2020
103	Khalilov A.Z. (Harakkosha)	0		0	3	3		17 Jan 2020
104	Jaga V.K. (VofrVendetta)	0		0	3	3		17 Jan 2020
105	Novosad (Nata2708)	0		0	3	3		13 Jan 2020
106	Potapov D. (Kono)	0		0	3	3		14 Jan 2020
107	Svintsitskaya E.B. (katya_svincickaya)	0		0	3	3		15 Jan 2020
108	Matrosov A. (Nightmare16)	0		0	3	3		15 Jan 2020
109	Pippo T.P. (Rayanor)	0		0	3	3		17 Jan 2020
110	Brovchuk S.U. (Svitlana98)	0		0	3	3		15 Jan 2020
111	Zakharov (serzah1)	0		0	3	3		17 Jan 2020
112	VINOGRADOV A. (zhullex)	0		0	3	3		17 Jan 2020
113	zELENOVA (briiz)	0		0	3	3		16 Jan 2020
114	Popov M.A. (sellsword)	0		0	3	3		16 Jan 2020
115	Mamasaliev A.I. (azikodron)	0		0	3	3		14 Jan 2020
116	Dorofeev (dorofeich)	0		0	3	3		19 Jan 2020
117	Nikandrov A.A. (Leks_Nikson)	0		0	3	3		14 Jan 2020
118	Bochkov S.D. (SergeyBo)	0		0	3	3		16 Jan 2020
119	Pogorelov (sqlQualifier)	0		0	3	3		17 Jan 2020
120	Galanda Ya. (YakubGalanda)	0		0	2	2	8940	18 Jan 2020
121	Stetsenko (StarToiz)	0		0	2	2	8944	18 Jan 2020
122	Jung (krystal_jung)	0		0	2	2	8945	20 Jan 2020
123	Mel'nikova A.I. (yoursun)	0		0	2	2		14 Jan 2020
124	Lebedev A.S. (Kudesnik1971)	0		0	2	2		15 Jan 2020
125	Popov P.S. (LOSK_MAN)	0		0	2	2		14 Jan 2020
126	Kapusta A.S. (kapusta_3121)	0		0	2	2		18 Jan 2020
127	Mikhailov S. (curiouser)	0	84	0	1	1	346	19 Jan 2020
128	Coder S. (Q_Coder)	0		0	1	1	12355	17 Jan 2020
129	Buslova E. (troonsply)	0		0	1	1	12356	18 Jan 2020
130	Guseva V.O. (ViktoriaGuseva)	0		0	1	1	12358	18 Jan 2020
131	Fatalieva (smeshinka_love)	0		0	1	1	12360	18 Jan 2020
132	Temurziev (DarkTerror)	0		0	1	1	12361	19 Jan 2020
133	yelubay (pogback)	0		0	1	1	12362	20 Jan 2020
134	Metelkin S.P. (shadeag33)	0		0	1	1		16 Jan 2020
135	Valiullin A. (unclamer)	0		0	1	1		13 Jan 2020
136	B A.A. (abcdew)	0		0	1	1		16 Jan 2020
137	Klymyuk (chigorilla)	0		0	1	1		17 Jan 2020
138	Singh R.K. (SimplyRks)	0		0	1	1		20 Jan 2020
139	Medvedev (tour_rv)	0		0	1	1		16 Jan 2020
140	keana7 (keana7)	0		0	1	1		17 Jan 2020
141	Xolodniuk E.O. (Kroft747)	0		0	1	1		18 Jan 2020
142	Dautov Sh.G. (KainarAsh)	0		0	1	1		17 Jan 2020

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References