How to get the number of columns from a JDBC ResultSet?

Question

I am using CsvJdbc (it is a JDBC-driver for csv-files) to access a csv-file. I don\'t know how many columns the csv-file contains. How can I get the number of columns? Is th

Answer 1

You can get columns number from ResultSetMetaData:

Statement st = conn.createStatement();
ResultSet rs = st.executeQuery(query);
ResultSetMetaData rsmd = rs.getMetaData();

int columnsNumber = rsmd.getColumnCount();