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Programming Microsoft Dynamics 365 Business Central

You're reading from   Programming Microsoft Dynamics 365 Business Central Build customized business applications with the latest tools in Dynamics 365 Business Central

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Product type Paperback
Published in Apr 2019
Publisher Packt
ISBN-13 9781789137798
Length 536 pages
Edition 6th Edition
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Authors (3):
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Christopher D. Studebaker Christopher D. Studebaker
Author Profile Icon Christopher D. Studebaker
Christopher D. Studebaker
David Studebaker David Studebaker
Author Profile Icon David Studebaker
David Studebaker
Marije Brummel Marije Brummel
Author Profile Icon Marije Brummel
Marije Brummel
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Toc

Table of Contents (12) Chapters Close

Preface 1. Introduction to Business Central FREE CHAPTER 2. Tables 3. Data Types and Fields 4. Pages - The Interactive Interface 5. Queries and Reports 6. Introduction to AL 7. Intermediate AL 8. Advanced AL Development Tools 9. Successful Conclusions 10. Assessments 11. Other Books You May Enjoy

Relational operators and procedures

The relational operators are listed in the following screenshot. Each of these is used in an expression of the following format:

Expression RelationalOperator Expression 

An example is (Variable1 + 97) > ((Variable2 * 14.5) / 57.332). The following operators can be used:

We will spend a little extra time on the IN operator, because this can be very handy and is not documented elsewhere. The term Valueset in the Evaluation column for IN refers to a list of defined values. It would be reasonable to define Valueset as a container of a defined set of individual values, expressions, or other value sets. Some examples of IN, as used in the standard Business Central product code, are as follows:

GLEntry."Posting Date" IN [0D,WORKDATE] 
 
Description[I+2] IN ['0'..'9'] 
 
"Gen. Posting Type" IN ["Gen. Posting Type"::Purchase, "Gen. Posting Type"::Sale] 
 
SearchString IN ['',&apos...
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