Querying oracle clob column

Question

I have a table with a clob column. Searching based on the clob column content needs to be performed. However

select * from aTable where aClobColumn = \'value\';

Answer 1

So do not. Because if you want to compare the data - then it may be a situation where one value: NULL and the second EMPTY_CLOB And it is for this method different matter! It returns -1, although in terms of data - both values ​​should not contain. Would be correct:

dbms_lob.compare (NVL (AUDIT_PAYLOAD_TEXT_DEC, Empty_Clob ()),  NVL (AUDIT_PAYLOAD_TEXT, Empty_Clob ()))