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Programming Microsoft Dynamics 365 Business Central - Sixth Edition

You're reading from  Programming Microsoft Dynamics 365 Business Central - Sixth Edition

Product type Book
Published in Apr 2019
Publisher Packt
ISBN-13 9781789137798
Pages 536 pages
Edition 6th Edition
Languages
Authors (3):
Marije Brummel Marije Brummel
Profile icon Marije Brummel
David Studebaker David Studebaker
Profile icon David Studebaker
Christopher D. Studebaker Christopher D. Studebaker
Profile icon Christopher D. Studebaker
View More author details

Table of Contents (12) Chapters

Preface Introduction to Business Central Tables Data Types and Fields Pages - The Interactive Interface Queries and Reports Introduction to AL Intermediate AL Advanced AL Development Tools Successful Conclusions Assessments 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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