Last week rating | SQL Exercises

December 11, 14:08 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.

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

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: 15402

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	>Govorov E. (erxaan)	37	37	59	1	60	1715	11 Dec 2025
2	Krasnov A.A. (Nutr1k)	23	29	33	0	33	1566	09 Dec 2025
3	Kiba N.M. (abikshmabik)	18	18	24	0	24	4405	08 Dec 2025
4	Vukolov A. (al.vuk)	9	79	18	35	53	370	11 Dec 2025
5	Toleu (Ykylas2)	10	10	12	0	12	5835	08 Dec 2025
6	Boribaev A.N. (Asik0060)	6	6	9	0	9	6484	08 Dec 2025
7	Stich L.S. (Stitch05)	6	6	8	0	8	6630	08 Dec 2025
8	Petrov Y. (YuriPetrov)	3	197	6	9	15	37	11 Dec 2025
9	fioletovaya (fioletovaya2)	3	35	5	0	5	2078	10 Dec 2025
10	Zhaksylykova M.M. (MadinaZhhh001)	4	4	5	0	5	7517	08 Dec 2025
11	Kostomarov A.V. (al29)	2	258	4	0	4	5	09 Dec 2025
12	ASI (asi_sql)	1	100	4	0	4	247	10 Dec 2025
13	Zolotyh (Guy)	3	66	4	0	4	621	09 Dec 2025
14	Tkachenko D. (_GUERNIKA_)	2	18	4	0	4	1754	10 Dec 2025
15	Safronov P.A. (Paulus73)	3	17	4	0	4	4061	09 Dec 2025
16	>Shmelyov L.A. (Shmeliara)	3	5	4	0	4	6888	11 Dec 2025
17	Boyarskij V.A. (ChronoMorzh)	1	131	2	2	4	139	10 Dec 2025
18	Boldyrev G.V. (grif85)	1	46	2	0	2	1045	09 Dec 2025
19	Pupkin (Kikimora)	1	47	2	0	2	1433	10 Dec 2025
20	Skokov B.S. (leks$$)	2	11	2	0	2	2508	11 Dec 2025
21	Belskiy V. (Gambit87)	1	63	1	0	1	757	10 Dec 2025
22	Stepanova (Lectrasim)	1	37	1	0	1	1335	05 Dec 2025
23	Mal'tseva E.S. (meskt)	1	5	1	0	1	2701	04 Dec 2025
24	Mullabazi B.B. (besartmm)	1	4	1	0	1	3505	09 Dec 2025
25	Bazhanov (mover)	1	2	1	0	1	11119	06 Dec 2025
26	Crxnotfound (Securite)	1	1	1	0	1	15395	07 Dec 2025
27	Chechetkin A. (SnakeManySSS)	0		0	26	26	4205	07 Dec 2025
28	Kizilova I.R. (RinaKizilova23017)	0		0	24	24	4453	09 Dec 2025
29	Sokolova V.A. (sklvlra)	0		0	22	22	4676	10 Dec 2025
30	Krylov A.O. (KArsOl1)	0		0	21	21	4785	10 Dec 2025
31	Korolev M.M. (cmbbtw)	0		0	21	21	4786	09 Dec 2025
32	kk (wraith_k_)	0		0	17	17		07 Dec 2025
33	Smirnov E.V. (SmirnovE.V)	0		0	16	16		09 Dec 2025
34	Evseev M.D. (BenBeri)	0		0	15	15	5481	09 Dec 2025
35	Sebeleva E.A. (Ashlynn3133)	0		0	15	15	5482	10 Dec 2025
36	Zyuz'kov S.V. (stepanzuzkov)	0		0	15	15	5483	11 Dec 2025
37	Basov V.A. (vadim_basov)	0		0	15	15		10 Dec 2025
38	Golikov A.A. (IpadreI)	0		0	14	14	5573	08 Dec 2025
39	Yastreb O. (Olgerd36)	0		0	14	14	5574	09 Dec 2025
40	chernykh D.N. (@hamm1ng)	0		0	14	14	5576	09 Dec 2025
41	Nalivkina Yu.A. (Yuliya Nalivkina)	0		0	14	14	5577	09 Dec 2025
42	Kotikova A.K. (Anastasia_Kotikova)	0		0	14	14	5578	10 Dec 2025
43	DEEPAK P. (PRINCE9070)	0		0	13	13	5727	09 Dec 2025
44	BIJU S. (SHON999)	0		0	13	13	5728	10 Dec 2025
45	Manoharan J.P. (Jag2004)	0		0	13	13	5729	09 Dec 2025
46	RAMESH A. (ABHI006)	0		0	13	13	5730	09 Dec 2025
47	Grachev (Monstrongus)	0		0	13	13	5731	08 Dec 2025
48	payyanadan V. (vichu859045)	0		0	13	13	5732	10 Dec 2025
49	THOMAS N. (noel_123)	0		0	13	13	5733	10 Dec 2025
50	Bajdaev D.A. (Dagva)	0		0	13	13	8051	10 Dec 2025
51	CHOVULLAKANDY A. (Abinraj)	0		0	13	13		09 Dec 2025
52	Makhotkin A.M. (larvoid)	0		0	12	12	5919	06 Dec 2025
53	Kostina Ya.A. (LBA)	0		0	12	12	5920	08 Dec 2025
54	Zlobin (artemmmz)	0		0	11	11	6134	08 Dec 2025
55	Sadriev K.F. (YugamiShinku)	0		0	11	11	6136	09 Dec 2025
56	Kaz'min K.I. (trysdek)	0		0	11	11	6138	10 Dec 2025
57	Stepanov R.L. (KsAnder132)	0		0	11	11	6139	10 Dec 2025
58	Larionova (Manya21313)	0		0	11	11	6140	10 Dec 2025
59	Lin'kov P.D. (petrlinkov)	0		0	11	11	6441	08 Dec 2025
60	M (DanilM2304)	0		0	11	11	6576	11 Dec 2025
61	Kazakov (EpselMopsel)	0		0	9	9	6573	07 Dec 2025
62	Prokof'eva K.Yu. (Kristianna)	0		0	9	9	6574	09 Dec 2025
63	Kulik A.L. (kulika)	0		0	9	9	6575	10 Dec 2025
64	Zagorodneva K.I. (Kaktus111)	0		0	9	9		04 Dec 2025
65	Kalej D.A. (Dek)	0		0	8	8	6763	06 Dec 2025
66	Biryukova D.I. (DIVANCHIK)	0		0	8	8	6764	09 Dec 2025
67	Rachinskij I.A. (Rachinskij Ivan)	0		0	8	8	6765	10 Dec 2025
68	Polyakov V.M. (rock_4)	0	148	0	6	6	142	11 Dec 2025
69	Klyuchnikov M.N. (Mikhail23isbo3)	0		0	6	6	7353	10 Dec 2025
70	O (janeoosql)	0		0	6	6	7354	06 Dec 2025
71	Urbpnovskaya E. (Urbanizzz)	0		0	6	6	7355	06 Dec 2025
72	Suscheva K.A. (Ks1993)	0		0	6	6	7357	09 Dec 2025
73	fdfdsf (fdsdsfdsf)	0		0	6	6	7358	09 Dec 2025
74	Rublev R.I. (LinkEvr)	0		0	6	6	7359	10 Dec 2025
75	Kim A.M. (sashaKATA)	0		0	6	6	7360	10 Dec 2025
76	Rudneva O.S. (Oly22)	0		0	6	6	7361	11 Dec 2025
77	Smolina A.V. (Smolina_al)	0		0	5	5	8049	08 Dec 2025
78	Sal'nikov P. (gfdtk1993)	0		0	5	5	8050	09 Dec 2025
79	Kravtsov K.S. (betyshaha)	0		0	5	5		08 Dec 2025
80	K (FitSuperset)	0		0	4	4	8724	08 Dec 2025
81	Mironova K.Yu. (Krist33)	0		0	3	3	9630	08 Dec 2025
82	Markov G.K. (ertonuy)	0		0	3	3	9631	08 Dec 2025
83	Podobajlo E.N. (PythonchikPro)	0		0	3	3	9632	09 Dec 2025
84	Belogorokhov S.S. (safar1k)	0		0	3	3	9633	09 Dec 2025
85	solov'ev A. (SOAD_best)	0		0	3	3	9634	09 Dec 2025
86	Chikov (dangersql5)	0		0	3	3	9635	09 Dec 2025
87	Poletaev V. (PiVkO)	0		0	3	3	9636	09 Dec 2025
88	Tarvi M.I. (.Misha.)	0		0	3	3	9637	09 Dec 2025
89	Fomin A.A. (Piter Griffin)	0		0	3	3	9638	09 Dec 2025
90	Kudryavtseva M.F. (123400a)	0		0	3	3	9639	09 Dec 2025
91	Senkevich M.A. (dotster)	0		0	3	3	9640	09 Dec 2025
92	Zaslavskaya S.V. (jj227)	0		0	3	3	9642	10 Dec 2025
93	Gorbunova I.V. (lalala09)	0		0	3	3	9643	10 Dec 2025
94	Degtyareva A.D. (okokokok)	0		0	3	3	9644	10 Dec 2025
95	Mavibash Kh. (Merzavets)	0		0	3	3	9645	10 Dec 2025
96	Volgapkin L. (levvo)	0		0	3	3	9646	10 Dec 2025
97	Tolstova S.K. (Sofiko_good)	0		0	3	3	9647	10 Dec 2025
98	Manukyan A.R. (Chipsi)	0		0	3	3	9648	10 Dec 2025
99	Anfimov I.V. (FursParashut)	0		0	3	3	9649	10 Dec 2025
100	Topin P.A. (ProkhorBane)	0		0	3	3	9650	11 Dec 2025
101	Nikita (zxcvbnm231)	0		0	3	3	11147	08 Dec 2025
102	Bujor A. (Angry BuQA)	0		0	2	2	11148	08 Dec 2025
103	Chebotarev M.V. (Mikhail_CH)	0		0	2	2	11149	10 Dec 2025
104	Safina C. (chusafina)	0		0	2	2	11150	08 Dec 2025
105	Shabalina (pechenkos)	0		0	2	2	11151	08 Dec 2025
106	Gasperskaya (deagasy)	0		0	2	2	11152	08 Dec 2025
107	Voronkova I.A. (Irairyra)	0		0	2	2	11153	08 Dec 2025
108	Shustova E.V. (Katik14)	0		0	2	2	11154	10 Dec 2025
109	Ivanova E.V. (spov758)	0		0	2	2	11155	09 Dec 2025
110	Almazova (Almkris)	0		0	2	2	11156	10 Dec 2025
111	Man K. (KatyMan)	0		0	2	2	11157	08 Dec 2025
112	Gul' (OG)	0		0	2	2	11158	10 Dec 2025
113	Urazboev I.M. (Imosh)	0		0	2	2	11159	08 Dec 2025
114	Shatula (nobodybodybro)	0		0	2	2	11160	09 Dec 2025
115	Abramov V. (Vitaminez)	0		0	2	2	11161	10 Dec 2025
116	Kuznetsova R.R. (Rrurise007)	0		0	2	2	11162	10 Dec 2025
117	Gomozova (Natali_gomozova)	0		0	2	2	11163	10 Dec 2025
118	Vlasenko S. (sviv)	0		0	2	2		04 Dec 2025
119	Gorev N.A. (Doigram1)	0		0	2	2		10 Dec 2025
120	Yakshin I.V. (ivan_y)	0	120	0	1	1	213	04 Dec 2025
121	Glazov I.A. (11one11)	0		0	1	1	15396	10 Dec 2025
122	Zinatova A.A. (Alina Z.)	0		0	1	1	15397	08 Dec 2025
123	levina (life_gizn)	0		0	1	1	15398	09 Dec 2025
124	Belousov V.N. (sluzhba po kontraktu)	0		0	1	1	15399	09 Dec 2025
125	gapbassov Y.D. (jidream)	0		0	1	1	15400	11 Dec 2025
126	Vidulina (fish-ka)	0		0	1	1	15402	10 Dec 2025
127	Kots M.S. (Muwa)	0		0	1	1		05 Dec 2025

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References