Use explicit conversion functions like TO_CHAR or TO_CLOB to ensure data types match.
TO_CHAR
TO_CLOB
SELECT TO_CHAR(clob_column) FROM my_table WHERE id = 1;
Adjust your SQL statements to ensure they use compatible data types.
SELECT * FROM my_table WHERE clob_column = TO_CLOB('some text');
Utilize the DBMS_LOB package to handle LOB data types properly.
DBMS_LOB
DECLARE l_clob CLOB; BEGIN SELECT clob_column INTO l_clob FROM my_table WHERE id = 1; DBMS_OUTPUT.PUT_LINE(DBMS_LOB.SUBSTR(l_clob, 100, 1)); END;
Ensure that the schema definitions match the expected data types. Alter columns if necessary to match the expected type.
ALTER TABLE my_table MODIFY (clob_column CLOB);
Suppose you have the following SQL statement that causes the ORA-00932 error:
SELECT * FROM my_table WHERE clob_column = 'some text';
To fix this, use explicit conversion:
SELECT * FROM my_table WHERE TO_CHAR(clob_column) = 'some text';
If you need to extract a substring from a CLOB column: