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Table 6 1 shows the details that we entered into these fields for the Dates are correct test case. Table 6 1. Test Scenario Details for the Dates Are Correct Controller/Test Case

This form displays system activity in real time and is good for a quick overview of what is going on if the system seems to be overloading or performing poorly. Of course, collecting the data in real time has a performance penalty that interferes with your system, so when you open the form, data collection is stopped and you must use the Continue button to restart it. You can then use the Pause button to pause and the Reset button to zero out the various counters in the two tab pages of the form. You can find a few more tools under the main application menu path of Administration Inquiries Database and the menu bar path Tools Development Tools that are very helpful for developers, system administrators, in general, and DBAs in particular.

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You can achieve the first step by using a DOM method called createElement. This is the syntax: document.createElement(nodeName) This statement will create a paragraph element: document.createElement("p"); By itself, the createElement method won t prove very useful. You ll want to insert the newly created element node into the document. To do this, you ll need to be able to refer to the newly created node. Whenever you use createElement, it s a good idea to assign the newly created element to a variable: var para = document.createElement("p"); The variable para now contains a reference to the p element you ve just created. Right now, this newly created paragraph element is floating in JavaScript limbo. The element exists, but it isn t part of the DOM node tree. This is called a document fragment. It isn t displayed in the browser. Nonetheless, it has DOM properties, just like any other node. The homeless paragraph element has a nodeType value and a nodeName value. You can test this for yourself by putting this into example.js: window.onload = function() { var para = document.createElement("p"); var info = "nodeName: "; info+= para.nodeName; info+= " nodeType: "; info+= para.nodeType; alert(info); }

Check-in Validation should fail on date earlier the dates passed in. than today Check-out Validation should fail on date earlier the dates passed in. than checkin date Check-out Validation should fail on date same as the dates passed in. checkin date

X++ has great support for data manipulation, providing a rich set of statements that makes it a snap to work with data. It s also very intuitive for anyone with database or SQL experience. Let s have a look at what Axapta has to offer.

The X++ language supports three statements that you are probably well-acquainted with to support transactions when performing data manipulation in Axapta: ttsBegin: Starts a transaction block ttsCommit: Closes a transaction block and commits the data to the database ttsAbort: Closes a transaction and rolls back all data manipulation within the current transaction block If data manipulation statements performing inserts, updates, or deletes are not enclosed in a transaction block, Axapta automatically commits with every insert, update, or delete statement. If Axapta terminates abnormally or exits with open transactions, then all transactions not committed explicitly or implicitly are rolled back automatically. It goes without saying that you should lock records that you select for updating by using the forUpdate keyword in X++ select statements.

Good dates Validation should succeed Check-in date: Today for the dates passed in: Check-out date: Check-out date is later than Tomorrow the check-in date, and the check-in date is later than yesterday

How you code access to your data has a major impact on the performance of your code and system; here is a list of rules to go by: Unless you really need to and have tested the execution plan very well, don t use hints in database statements; the database optimizer will do a better job, and a bad hint can really hurt performance. Use table joins instead of using loops to walk through your data; this reduces the number of statements traveling around and the amount of data, plus it offloads processing of data to the database. Use aggregate functions where appropriate instead of aggregating in code.

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