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SQL Problems and solutions
S. I. Moiseenko
16:02
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Querying graph database data
SQL Server graph databases
Graph databases
Equi-joins page 2
Equi-joins
INFORMATION_SCHEMA and Oracle
Computer Firm Database
Common mistakes in solving SELECT statement exercises
Once more about NULL values page 3
MERGE statement
Links
sqlbooks.ru
Books and articles on SQL and databases
valentinnikotin.com
Valentin Nikotin's blog: Oracle SQL and PL/SQL.
cooler-online.com (cooler-online.ru)
Cooler - online computer tech dedicated project with ten years history
deskbright.com
SQL Interview Questions
