Conditional ‘Where’ Clauses in ‘Select’ Statements in Dynamics AX

by | Updated August 15, 2016 | Development, Dynamics AX

Ever found yourself in a situation where you conditionally want to apply a ‘where’ clause in a select statement in Dynamics AX? Here’s how you can do it:

There are several scenarios we run into everyday where we are writing a select statement to query data but we only want to apply the ‘where’ clause if certain conditions are met. This is easy to do if you are using a query object, like:

But you can also apply the where clause conditionally in a select statement, like:

If ‘_applyCondition’ is passed in as ‘true’, the ‘!_applyCondition’ will be resolved as false and table.<Field> = _value will be evaluated for ‘where’ clause, as the ‘OR’ result with ‘false’ can be true or false.

False OR False   =  False

False OR True    =  True

On the other hand, if ‘_applyCondition’ is passed in as ‘false’, the ‘!_applyCondition’ will be resolved as true, so there’s is no point evaluating table.<Field> = _value condition, as the ‘OR’ result of true with any expression would be true only.

True OR False    =  True

True OR True     =  True

Hence the ‘where’ clause is not applied.

General syntax for the conditional where clause looks as follows: where (!<Condition> || <Table>.<Field> == <Value>).

Happy coding!

Related Posts

0 Comments

Submit a Comment

Your email address will not be published. Required fields are marked *

Upcoming Events

january

14jan11:00 am12:00 pmConfab with Stoneridge - Livestream - Looking Forward: Predictions for Technology in 2021

20jan10:00 am10:30 amThe Modern Manufacturer - Demand Forecasting Functionality

27jan12:00 pm12:45 pmFour Keys to Choosing the Best ERP or CRM Solution: Part 1 – Fit

28jan11:00 am12:00 pmConfab with Stoneridge - Livestream - Ask the Experts!

february

03feb10:00 am10:30 amThe Modern Manufacturer - Enterprise Asset Management

03feb12:00 pm12:45 pmFour Keys to Choosing the Best ERP or CRM Solution: Part 2 – Platform

10feb12:00 pm12:45 pmFour Keys to Choosing the Best ERP or CRM Solution: Part 3 – Implementation Partner

11feb11:00 am12:00 pmConfab with Stoneridge - Livestream - Live Agents, Power Virtual Agents, Omnichannel – Oh My!

16feb12:00 pm12:45 pmFour Keys to Choosing the Best ERP or CRM Solution: Part 4 – Cost

17feb10:00 am10:30 amThe Modern Manufacturer - Machine Maintenance Work Orders

25feb11:00 am12:00 pmConfab with Stoneridge - Livestream - Surfing Through the Dynamics 365 Wave 1 2021 Release

About Stoneridge
Stoneridge Software is a unique Microsoft Gold Partner, with emphasis on partner. With specialties in Microsoft Dynamics 365, Microsoft Dynamics AX, Microsoft Dynamics NAV, Microsoft Dynamics GP and Microsoft Dynamics CRM, we focus on attracting the most knowledgeable experts in the field to our team, and prioritize delivering stellar solutions with maximum impact for your business. At Stoneridge, we are deeply committed to your results. Each engagement is met with a dedicated team, ready to provide thorough, tailored, and expert service. Based in Minnesota, we intentionally “step into your shoes,” wherever you are. We focus on what you care about, and develop trusting, long-term relationships with our clients.

Subscribe To Our Blog

Sign up to get periodic updates on the latest posts.

Thank you for subscribing!

X