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SAP Sybase SQL Anywhere 16.0 » SQL Anywhere Server - Programming » JDBC support » Data access using JDBC


How to return result sets from Java

This section describes how to make one or more result sets available from Java methods.

You must write a Java method that returns one or more result sets to the calling environment, and wrap this method in a SQL stored procedure. The following code fragment illustrates how multiple result sets can be returned to the caller of this Java procedure. It uses three executeQuery statements to obtain three different result sets.

public static void Results( ResultSet[] rset )
       throws SQLException
    // Demonstrate returning multiple result sets

    Connection con = DriverManager.getConnection(
                    "jdbc:default:connection" );
    rset[0] = con.createStatement().executeQuery(
        "SELECT * FROM Employees" +
        "   ORDER BY EmployeeID" );
    rset[1] = con.createStatement().executeQuery(
        "SELECT * FROM Departments" +
        "   ORDER BY DepartmentID" );
    rset[2] = con.createStatement().executeQuery(
        "SELECT i.ID,i.LineID,i.ProductID,i.Quantity," +
        "       s.OrderDate,i.ShipDate," +
        "       s.Region,e.GivenName||' '||e.Surname" +
        "   FROM SalesOrderItems AS i" +
        "   JOIN SalesOrders AS s" +
        "   JOIN Employees AS e" +
        "   WHERE s.ID=i.ID" +
        "        AND s.SalesRepresentative=e.EmployeeID" );