Question

This question is an extension of this question. It is good that I can get MetaData. However reading the documentation I have understood that this data is only for SELECT type requests. And I need more information, is it UPDATE or SELECT and etc. Can I get this information without parsing SQL request? What will be if I use executeQuery() or getMetaData() to UPDATE or DELETE request?

Answer 1

Meta data is available only on ResultSet and Database level but not on Update and Delete type of queries. The Statement.execute( String sql ) can be used to identify if the query returns ResultSet(s) or an integer amount of records affected.

Documentation says:
The execute method executes an SQL statement and indicates the form of the first result. You must then use the methods getResultSet or getUpdateCount to retrieve the result, and getMoreResults to move to any subsequent result(s).

This method returns true if the first result is a ResultSet object; false if it is an update count or there are no results

There is no any direct method that tells you if the query being is used is an Update or a Delete. You require to parse it explicit and identify.