Mohsen Heydari

Mohsen Heydari has asked 1 questions and find answers to 35 problems.

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Mohsen Heydari questions

Why SUM(null) is not 0 in Oracle?

Mohsen Heydari answers

SQL: How do I GROUP BY two columns as unordered pairs?
Oracle failover and SCN number
EF Code First, Model First or Db First? for a many changing medium-large app
how to set unique primary key for all table in same database
Oracle SQL Developer client encoding
How do I use bulk collect and insert in Pl/SQl
Obtain the symbol that a "super" call refers to in Scala
Ignore date list from CTE
Core Data Model Design
Calculate difference between 2 date / times in Oracle SQL