Reuben,
While I agree that an empty string is not logically equal to a null, Oracle
interprets an empty string in INSERT and UPDATE statements as a NULL. So
you really do not have a choice here. If you have the need to insert an
empty string into a column, you have two choices:
- Define a character to represent an empty string and insert that character
(pretty dumb suggestion)
- Change the table to allow null values in that column, and perform the
INSERT as your example showed.
Good Luck and hope these helped.
Tom Mercadante
Oracle Certified Professional
-----Original Message-----
Sent: Friday, July 18, 2003 4:10 PM
To: Multiple recipients of list ORACLE-L
Hello all,
Suppose I have this table
SQL> DESC FRUIT
Name Null? Type
----------------------------------------- --------
ORANGE NOT NULL VARCHAR2(10)
APPLE NOT NULL VARCHAR2(10)
If I do this insert:
SQL> /
INSERT INTO FRUIT VALUES ('hello', '')
*
ERROR at line 1:
ORA-01400: cannot insert NULL into ("LIGHTCONE"."FRUIT"."APPLE")
I got an error cannot insert NULL. But, what if I meant is to insert empty
string '' ? Certainly empty string is NOT equal to NULL values.
So how do I get around this?
Thanks in advance for any help.
Reuben D. Budiardja
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