ORA-00932 Error Message
Learn the cause and how to resolve the ORA-00932 error message in Oracle.
Description
When you encounter an ORA-00932 error, the following error message will appear:
- ORA-00932: inconsistent datatypes
Cause
You tried to perform an operation between two different datatypes, but the datatypes are not compatible.
Resolution
The option(s) to resolve this Oracle error are:
Option #1
Correct the operation so that the datatypes are compatible. You may want to use a conversion function such as: TO_DATE function, TO_NUMBER function, or TO_CHAR function.
One example of this error is if you try to use the LIKE condition with a LONG datatype.
For example, if you created the following table:
CREATE TABLE suppliers ( supplier_id numeric(10) not null, supplier_name long not null, contact_name varchar2(50) );
And then you tried to use the LIKE condition on the supplier_name column which as defined as a LONG data type:
SELECT * FROM suppliers WHERE supplier_name LIKE 'IBM%';
You would receive the following error message:
Unfortunately, you can not use the LIKE condition on a LONG data type.
To correct this error, you can do one of the following:
- Not use the LIKE condition in your SQL (against the LONG datatype field).
- Consider modifying your table so that the supplier_name field is either a VARCHAR2 or CHAR field.
- Try writing a custom PLSQL function to convert a LONG to a VARCHAR2.
Option #2
This error can also occur if you try to use an Oracle function on a LONG datatype.
For example, if you created the following table:
CREATE TABLE suppliers ( supplier_id numeric(10) not null, supplier_name long not null, contact_name varchar2(50) );
And then you tried to use the TO_CHAR function on the supplier_name column which as defined as a LONG data type:
SELECT upper(supplier_name) FROM suppliers;
You would receive the following error message:
Unfortunately, you can not use Oracle functions on a LONG data type.
To correct this error, you can do one of the following:
- Not use Oracle functions in your SQL (against the LONG datatype field).
- Consider modifying your table so that the supplier_name field is either a VARCHAR2 or CHAR field.
- Try writing a custom PLSQL function to convert a LONG to a VARCHAR2.
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