meta data

a set of data that describes and gives information about other data.

It is used for to get column information not the actual data of column

Common methods are getColumnCount and getColumnLabel


//ResultSetMetaData itself does not contains any row data
        ResultSetMetaData rsmd = rs.getMetaData();
        
        
        // Metadata -- data about the data
        // ResultSetMetaData -- data about the ResultSet object that 
        contain our resulting rows and columns
        // for example column names, column counts .. and more