Need you help !!! -- Convertion from Char to Date

Dear experts:
I am new to abap and here is one thing need your help:
Currently I have a char type field defined in the source table, after I retrive this field into my work area, I need to convert it to Date type and then calculate the last day of this date.
for example: WA_TEST-CHAR = '20100801'. This value in orignal ECC table is char type.
Then How can I convert this value to a date type, and calculate its last day?
My expected result is "20100731".
BTW, does anybody know how to convert a date type field to a number type field like To_number() or something?. If I need to get the period between 2 different date, how can I get this?
Any post will be appreciate and thank you all in advance!
Best Regards
Tim
Moderator message: sorry, date conversion and date calculation are very basic and FAQs, please search for available answers, also read ABAP online documentation.
locked by: Thomas Zloch on Aug 23, 2010 9:56 AM

Hi,
For your question:
BTW, does anybody know how to convert a date type field to a number type field like To_number() or something?. If I need to get the period between 2 different date, how can I get this?
use this FM FIMA_DAYS_AND_MONTHS_AND_YEARS.
regards,

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