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The node exists. It has the nodeName property with the value "P". It also has a nodeType property with the value 1, which means it s an element node. But this node is not connected to the node tree of the document, test.html.

If you are deleting many rows that match specific criteria, use the delete_from statement instead of delete, as it performs better. If you are updating many rows that match specific criteria, use the update_from statement instead of the update statement, as it performs better. Think well about your indexes: lack of good indexes will lead to full table scans. Sort data using indexed fields and avoid conflicts between where and order by clauses. Write where clauses that select only the data you need. Minimize the time records are locked by not hanging on to data longer than necessary i.e., don t select some data for update, do a bunch of other stuff, and then use it sometime later. Use recordset functions where possible, such as array insert, insert recordset, and update recordset.

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This is where the up-front effort really begins to pay off. You ve driven your model and test scenarios from use cases, and you ve disambiguated the use case text and gained sign-off from the customer and BAs. You can now make good use of the model and all your new test scenarios. Now is the time to generate classes. As we go to press, EA supports generating JUnit, FlexUnit, and NUnit test classes.

To support its database independence, Axapta stores information about its database characteristics in variables. These are delivered from MBS as part of the standard application in the class SqlDatabaseInit, which is used to initialize the SqlSystemVariables table as part of the process of initializing a new database. On principle you should not change the system variables; however, if you need to you can do it directly in the database, via the Axapta table browser, or from within your own X++ code. It s here that you will find variables such as those mentioned before: QUOTEPRE, QUOTEPOST, and INDEX. The system variables are divided into nine groups: Data-type mapping: Maps Axapta data types to the database s base data types SQL name mapping: Keys for illegal SQL object names and for name mangling SQL statement generation: Maps keywords used for the current database when generating SQL statements SQL statements: Complete statements used for internal administrative purposes Error code recognition: Database error codes recognized by Axapta Versioning: Version information for setup and synchronization purposes Database identification: What database is being used Concurrency issues: How to handle concurrency issues Data conversion, mapping, and retrieval: Characteristics of the data for the current database If you browse through the class or the corresponding table, the purposes of these will be evident for the most part.

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