Product Documentation

FairCom JDBC

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Manage

Manage() provides data management functionality for your application and/or process.

Below is the code for Manage():

//

// Manage()

//

// Populates table and perform a simple query

//

private static void Manage ()

{

System.out.println("MANAGE");

// populate the tables with data

Add_CustomerMaster_Records();

Add_CustomerOrders_Records();

Add_OrderItems_Records();

Add_ItemMaster_Records();

// perform a query:

// list customer name and total amount per order

// name total

// @@@@@@@@@@@@@ $xx.xx

// for each order in the CustomerOrders table

// fetch order number

// fetch customer number

// fetch name from CustomerMaster table based on customer number

// for each order item in OrderItems table

// fetch item quantity

// fetch item number

// fetch item price from ItemMaster table based on item number

// next

// next

System.out.println("\n\tQuery Results");

try

{

ResultSet rs = stmt.executeQuery (

"SELECT cm_custname, SUM(im_itempric * oi_quantity) " +

"FROM custmast, custordr, ordritem, itemmast " +

"WHERE co_custnumb = cm_custnumb AND co_ordrnumb = oi_ordrnumb AND oi_itemnumb = im_itemnumb " +

"GROUP BY co_ordrnumb, cm_custname");

// read resultset

while (rs.next())

{

// fetch customer name

String custname = rs.getString(1);

// fetch item price

float total = rs.getFloat(2);

System.out.println("\t\t" + custname + "\t" + total);

}

rs.close();

}

catch (SQLException e)

{

Handle_Exception(e);

}

}

//

// Add_CustomerMaster_Records()

//

// This function adds records to table CustomerMaster from an

// array of strings

//

private static void Add_CustomerMaster_Records ()

{

System.out.println("\tAdd records in table CustomerMaster...");

String data[] = {

"('1000','92867','CA','1','Bryan Williams','2999 Regency','Orange')",

"('1001','61434','CT','1','Michael Jordan','13 Main','Harford')",

"('1002','73677','GA','1','Joshua Brown','4356 Cambridge','Atlanta')",

"('1003','10034','MO','1','Keyon Dooling','19771 Park Avenue','Columbia')"

};

Delete_Records("custmast");

try

{

// add one record at time to table

for (int i = 0; i < data.length; i++) {

stmt.executeUpdate("INSERT INTO custmast VALUES " + data[i]);

}

}

catch (SQLException e)

{

Handle_Exception(e);

}

}

//

// Add_CustomerOrders_Records()

//

// This function adds records to table CustomerOrders from an

// array of strings

//

private static void Add_CustomerOrders_Records ()

{

System.out.println("\tAdd records in table CustomerOrders...");

String data[] = {

"('09/01/2002','09/05/2002','1','1001')",

"('09/02/2002','09/06/2002','2','1002')"

};

Delete_Records("custordr");

try

{

// add one record at time to table

for (int i = 0; i < data.length; i++) {

stmt.executeUpdate("INSERT INTO custordr VALUES " + data[i]);

}

}

catch (SQLException e)

{

Handle_Exception(e);

}

}

//

// Add_OrderItems_Records()

//

// This function adds records to table OrderItems from an

// array of strings

//

private static void Add_OrderItems_Records ()

{

System.out.println("\tAdd records in table OrderItems...");

String data[] = {

"(1,2,'1','1')",

"(2,1,'1','2')",

"(3,1,'1','3')",

"(1,3,'2','3')"

};

Delete_Records("ordritem");

try

{

// add one record at time to table

for (int i = 0; i < data.length; i++) {

stmt.executeUpdate("INSERT INTO ordritem VALUES " + data[i]);

}

}

catch (SQLException e)

{

Handle_Exception(e);

}

}

//

// Add_ItemMaster_Records()

//

// This function adds records to table ItemMaster from an

// array of strings

//

private static void Add_ItemMaster_Records ()

{

System.out.println("\tAdd records in table ItemMaster...");

String data[] = {

"(10,19.95,'1','Hammer')",

"(3, 9.99,'2','Wrench')",

"(4, 16.59,'3','Saw')",

"(1, 3.98,'4','Pliers')"

};

Delete_Records("itemmast");

try

{

// add one record at time to table

for (int i = 0; i < data.length; i++) {

stmt.executeUpdate("INSERT INTO itemmast VALUES " + data[i]);

}

}

catch (SQLException e)

{

Handle_Exception(e);

}

}

//

// Delete_Records()

//

// This function deletes all the records in a tables

//

private static void Delete_Records (String table)

{

System.out.println("\tDelete records...");

try

{

stmt.executeUpdate("DELETE FROM " + table);

}

catch (SQLException e)

{

Handle_Exception(e);

}

}

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