e298. inserting an object value into an oracle table using a prepared statement.txt

这里面包含了一百多个JAVA源文件

This example inserts Oracle OBJECTs into an Oracle table using a prepared statement. The example uses the OBJECT types and table created in e296 Creating an OBJECT Type in an Oracle Database. 
    try {
        // Create an oracle.sql.STRUCT object to hold the values for object2
        Object[] object2Values = new Object[]{"str", new BigDecimal(123)};
        oracle.sql.StructDescriptor structDesc =
            oracle.sql.StructDescriptor.createDescriptor("OBJECT2", connection);
        oracle.sql.STRUCT object2 =
            new oracle.sql.STRUCT(structDesc, connection, object2Values);
    
        // Create an oracle.sql.STRUCT object to hold the values for object1
        Object[] object1Values = new Object[]{"str", object2};
        structDesc = oracle.sql.StructDescriptor.createDescriptor("OBJECT1", connection);
        oracle.sql.STRUCT object1 =
            new oracle.sql.STRUCT(structDesc, connection, object1Values);
    
        // Create a prepared statement for insertion into object1_table
        PreparedStatement ps =
            connection.prepareStatement("INSERT INTO object1_table VALUES(?,?)");
    
        // Set the values to insert
        ps.setInt(1, 123);
        ps.setObject(2, object1);
    
        // Insert the new row
        ps.execute();
    } catch (SQLException e) {
    }