date fonctions

[master_student]

Hello Guys,

Hope all is all

Could anyone explain to me the fonctions to_date/ to_char/to_months ?? and why they are used together in the expression bellow

date>= to_date(to_char(add_months(SYSDATE,-6),'DD/MM/YYYY'),'DD/MM/YYYY')

Thank you so much

[its_anandrjs]

Dear

It is a SQL related question better you can discussed this on SQL community.

Regards

Anand