Useful links on 'SQL Exercises'

June 25, 10:34 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.
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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 (SELECT)
  • Exercises voting (DML)

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

References

Resource	Description
SQL-tutorial.RU	The interactive textbook on SQL
Forum checker	SQL-EX forum checker - extension for Google Chrome
SQL-Ex	Telegram channel.
Download	Here You can download databases scripts used for exercises.
LinkedIn.com	SQL Exercises group on LinkedIn.com. Join us!
valentinnikotin.com	Valentin Nikotin's blog: Oracle SQL and PL/SQL.
SQL.RU	SQL.RU - Use SQL, development of client/server systems. MSSQL, Oracle, Interbase, MySQL forums. Useful references and more.
its22.ru	IT-Solution: Learn queries in 1С.
art-in-stamps.ru/development/	RESTful web services
Shultais Education
rusdoc.ru	Russian documents: IT-digest daily. Computer library.
deskbright.com	SQL interview questions
ru.hexlet.io	Learn to code (JS frontend and backend, PHP, Python, Java).

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