Result Set Was Null. Null has nothing to do with an empty result set. SELECT TaskCode AS Result FROM Tasks.
Its holding a reference to a ResultSet object. Each records contains a set of columns. For example the CoffeeTablesviewTable method creates a ResultSet rs when it executes the query through the Statement object stmtNote that a ResultSet object can be created through any object that implements the Statement interface.
This feature allows us to modify the column names and column data types of the result sets returned by a stored procedure without actually modifying the stored procedure code.
The Java JDBC ResultSet interface represents the result of a database query. EXECUTE WITH RESULT SETS. If the input table is very large the temporary file might use up all the free disk space on the host. If the result set was generated some other way such as by a DatabaseMetaData method this method may return null.