Result Sets
You can use ResultSetMetaData to retrieve metadata about the results of a query.
The query can contain any of the following:
- Joins
- Aggregates
- Aliases
- Fully qualified names
- Generated columns
You can instantiate a ResultSetMetaData object by invoking the getMetaData method of the Statement class. A ResultSetMetaData instance is populated with data after the statement has been executed. The following query prints out the columns in the result of the query:
String connectionString = "jdbc:googlesearch:ApiKey=abc123; CustomSearchID=def456;"; Connection conn = DriverManager.getConnection(connectionString); PreparedStatement pstmt = conn.prepareStatement("SELECT DisplayLink, Title AS My_Title, GETDATE() FROM WebSearch WHERE SearchTerms = 'Fantastic Four'"); pstmt.executeQuery(); ResultSetMetaData rs = pstmt.getMetaData(); for(int i=1;i<=rs.getColumnCount();i++) { System.out.println(rs.getColumnName(i)); }