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For example, if the statement string is a query and you don t know that (because, for example, it is in a variable passed to you by some other program), you could use the execute() method: public boolean execute(String sql) throws SQLException; 2d If you want to execute a stored procedure (without using bind variables and without being able to retrieve data returned from the procedure), you can use the execute() method..

When an object is new, it means that the object exists in memory, but not in the database or other persistent store If the object s data resides in the database, then the object is considered to be old I typically think of it this way: if the primary key value in the object corresponds to an existing primary key value in the database, then the object is old; otherwise it is new The value behind the IsNew property is stored in an _isNew field.

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In spite of the power of IntelliMorph and MorphX, the fact is that there is only so far you can go without coding. X++ is the built-in Axapta programming language that enables you to overcome the limits that you get from the product out of the box.

Caution As you may have already guessed, using the Statement interface for executing stored procedures is not a good idea. You should use CallableStatement, as explained in the next chapter, for this purpose because it allows you to pass parameters as bind variables and it also allows you to retrieve values returned by a stored procedure.

When an object is first created, this value defaults to the object being new: private bool _isNew = true; If the object is then loaded with data from the database, the _isNew field is set to false, through a protected MarkOld() method: protected virtual void MarkOld() { _isNew = false; MarkClean(); } Notice that this process also sets the object to a clean status a concept discussed later for the IsDirty property When an object s data has just been loaded from the database, it is safe to assume that the object s data matches the data in the database and so has not been changed and thus is clean.

Axapta includes its own integrated code editor for working with X++. It s quite a simple editor, without bells and whistles; however, it provides everything you need to program in X++, and its simplicity keeps you focused on what s important. To start coding, you either select the Methods node of an object type or a specific method that it contains and double-click it. From the node s pop-up menu that appears, select the Edit menu option. The result resembles Figure 18-18.