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SUM function in query

968752Oct 16 2012 — edited Oct 16 2012

Query:

select sum(2) from employees

How easy it is to tell the answer without running it in SQL Developer or SQL* Plus

Also can some one tell me the purpose the above query?

Sorry, if this is annoying but I am finding it a bit hard to understand the logic behind allowing Lower(2.3) and Upper(69) etc queries

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Locked on Nov 13 2012

Added on Oct 16 2012

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