In the following example, the PurchaseOrderKey class implements a composite key for the PurchaseOrderEJB entity bean. The key is composed of two fields, productModel and vendorId, whose names must match
You can override some of the built-in VB keywords with your own version of the function. For instance, FileDateTime is a handy built-in function in VB, but it suffers from
When transforming XML to HTML you often have to create links on your page. Use this syntax to simply this task. Long way: Short way:
TML form handling consists of a set of named form controls on an HTML page and a Submit button for sending the information contained by the controls to a server,
CREATE TABLE tblSales (MonthNumber int,MonthName varchar(10) PRIMARY KEY,ProductA INT,ProductB INT,ProductC INT) INSERT INTO tblSales Select 1,’Jan’,5800,5900,5400 union allSelect 2,’Feb’,5750,5950,5500 union allSelect 3,’Mar’,6200,5700,7100 union allSelect 4,’Apr’,6300,5900,5400 union allSelect 5,’May’,5350,5650,5500 SELECT A.*,X.AvgSales
Oracle and SQL Server databases use different date/time resolutions, which poses a problem when you compare times from the two databases: The times will rarely be equal. Solve this problem
Windows applications generally use the registry for storing configuration information. Sometimes, it can be essential to allow users to change the registry key/value and the same needs to be reflected