Inserting blank values and retrieving blank values

I really want to Insert blank values into Oracle database,and also want to retrieve blank values from table.
When I try to insert blank values ,Its inserting null values.
I don't want to insert null for blank.
Please provide me solution for this.
Thank you

user631179, logically if you have a descrition or other printable
character column where the value is blanks you do not have a value.
The data item is logically unknown or non-existent, hence NULL.
You can assign blanks (spaces) for NULL in the querying program
like SQLPlus does on display. The Pro*C and other language tools
provides null indicator bytes for this purpose.
UT1 > l
1 select fld1, fld2, rpad(nvl(fld4,' '),10,' '), length( rpad(nvl(fld4,' '),10,' '))
2* from marktest
UT1 > /
FLD1             FLD2 RPAD(NVL(F LENGTH(RPAD(NVL(FLD4,''),10,''))
one                 1                                          10
TWO                 2 USER51                                   10
                    4 USER51                                   10HTH -- Mark D Powell --
Message was edited by: Mark to try to keep the test from requiring scrolling
mpowel01

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