Tasks for SQL (Oracle)?

I

Igor Petrov2011-04-05 14:21:14

Oracle

Igor Petrov, 2011-04-05 14:21:14

Good afternoon, Khabravchane!
Throw, please, some collection of problems on SQL, otherwise theory is theory, and problems also do not interfere. It would be nice if the puzzles also demonstrated the charms of Oracle Database, but this is optional.
Thanks in advance!

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5 answer(s)

R

rasa, 2011-04-05
@rasa

database journal
sql-ex.ru
sqlzoo

S

soks, 2011-04-05
@soks

Problems from the Oracle Olympiad can be found here

S

sainnr, 2011-04-05
@sainnr

4.w3schools 5.1
. SQL course (basic)
5.2. SQL course (advanced)

C

ComodoHacker, 2011-04-05
@ComodoHacker

For PL/SQL: plsqlchallenge.com

I

Igor Petrov, 2011-04-05
@KriegeR

Thank you all!