Question

I am typing SQL queries to get some data from a software tool which is based on an Oracle database. I am using the typical SELECT-statement.

Now, in my SQL-query I am using at different places the date “02.05.2012”. Is there a way to define a variable date_string at the beginning and then use at all relevant places this variable?

This would simplify things a lot. Thanks for all hints and tips!

Answer 1

You might try to rewrite your query to return the literal from an inline view …

select
   my_date,
   ...
from(
   select to_date('02.05.2012','DD.MM.YYYY') my_date from dual),
   table2
where
   some_column <= my_date