Data Services Designer error Invalid WHERE clause. Additional information: Non-comparison expression is not allowed.

Hi,

I need to create some logic in the WHERE clause based on dates, but I am getting an error.

Here is my logic:

ifthenelse(SQL.POST_DATE > to_date('2014.06.12',yyyy.mm.dd), 

SQL.POST_DATE > sysdate( )-45,

SQL.POST_DATE >= to_date('2014.04.12',yyyy.mm.dd) and

SQL.POST_DATE <= to_date('2014.05.12',yyyy.mm.dd))

Error is:

Invalid WHERE clause. Additional information: <Non-comparison expression < ifthenelse(SQL.POST_DATE > to_date('2014.06.12',yyyy.mm.dd), 

SQL.POST_DATE > sysdate( )-45,

SQL.POST_DATE >= to_date('2014.04.12',yyyy.mm.dd) and

SQL.POST_DATE <= to_date('2014.05.12',yyyy.mm.dd))

> is not allowed. (BODI-1111313)>. (BODI-1111078)

I'm not sure what is causing the error. Should I be using something other than ifthenelse?