callable-statement

String sqlString = "{CALL MyStoredProcedure(?,?)}"; CallableStatement sqlStm = connection.prepareCall(sqlString); sqlStm.setString(1, username); sqlStm.registerOutParameter(2, Types.DECIMAL, 0); // <---- ERROR sqlStm.execute(); This is my error stacktrace: java.sql.SQLException: Parameter number 2 is not an OUT parameter at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927) at com.mysql

What is the best way to make a call to a stored procedure using JDBC if you only want to set some of the parameters? If I was just using SQL, I could set the paramerers by name in the SQL to call the sproc. E.g. if I have a stored procedure with nine parameters and I wanted to set parameters 1,2 and 9, leaving the rest to their default values, I can run this SQL: exec my_stored_procedure @parameter_1 = "ONE", @parameter_2 = "TWO", @parameter_9 = "NINE" Using JDBC (Specifically jConnect 6.0), it seems that when using a CallableStatement, you have to set the parameters by their integer index,