elucero
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Sql does not recognize null value from Oracle source
Hi, I imported data into sql server from oracle. Sql does not recoginize the null values from the oracle source. Does anyone know the work around. Thanks
ASKER
writing isnull(fieldname) and is not working. The data was imported from an oracle source.
isnull has 2 parameters...
what is exact query...
what is your data?
what is exact query...
what is your data?
ASKER
yea I know I meant isnull(field1,field2)
trying to change the data if it's null but it's not recognizing null value
trying to change the data if it's null but it's not recognizing null value
ASKER
Even when I do where field1 is null - the null value is not recognized
ASKER CERTIFIED SOLUTION
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Below Fld1 is the "column name you have for the bad date." If it is not null, it maybe is an empty string.
Possible output will be:
NullYN EmptyStringIfZero
yes null 0
0 <-- len is zero but it is not labeled as null
Select IsNull(Fld1, 'yes null' ) NullYN, len(Fld1) EmptyStringIfZero From Table1
Otherwise, it just could be empty string.Possible output will be:
NullYN EmptyStringIfZero
yes null 0
0 <-- len is zero but it is not labeled as null
ISNULL() doesn't filter for NULL values.
If you want to filter then you should use IS NULL keyword. This is ANSI so should work for Oracle, SQL Server or any other DBMS.
Example:
If you want to filter then you should use IS NULL keyword. This is ANSI so should work for Oracle, SQL Server or any other DBMS.
Example:
SELECT *
FROM Table
WHERE Column IS NULL
what are you trying to do?
what is the qry?