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Tag Archive for oracleoracle-sqldeveloper

SQL Developer Output doens’t display data of tables with XML columns

This is a question that querying me for a while. I use SQL Developer on a duplicated testing database, then update the query to a backend application that connects to the realtime database.Notice that tables with XML columns only works in backend application but outputing empty result in SQL developer.

Invalid characters in VARCHAR2 column – Oracle

I want to find out what characters are not supported in my VARCHAR2 column in Oracle. When I filter a VARCHAR2 field using asciistr(column) <> column (query provided below), I see that some characters are being replaced with ‘0BF’ code. I want to find out what are these characters so that I can add a condition to exclude them when collecting the data itself.