How To Fix SD_CDS_PROJECTION014 - Literals are not allowed on the left side of comparisons

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_CDS_PROJECTION - Message for Projection Entities

• Message number: 014

• Message text: Literals are not allowed on the left side of comparisons

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SD_CDS_PROJECTION014 - Literals are not allowed on the left side of comparisons ?

  The SAP error message SD_CDS_PROJECTION014 indicates that there is an issue with a comparison in a Core Data Services (CDS) view or query where a literal value is being used incorrectly on the left side of a comparison. In SQL and CDS, comparisons typically involve a field or column on the left side and a literal value on the right side.
  Cause:
  The error occurs when a CDS view or query attempts to compare a literal value (like a string, number, or date) directly against another literal value or when the syntax does not conform to the expected structure. For example, a comparison like 5 = '5' or CONSTANT_VALUE = 'some_value' would trigger this error.
  Solution:
  To resolve this error, you need to ensure that the left side of the comparison is a field or a variable rather than a literal. Here are steps to fix the issue:
  
  
  Identify the Comparison: Look at the line of code or the part of the CDS view where the error is being raised. Identify the comparison that is causing the issue.
  
  
  Correct the Syntax: Ensure that the left side of the comparison is a field or a variable. For example, instead of writing:
  SELECT * FROM my_table WHERE 'some_value' = my_field
  You should write:
  SELECT * FROM my_table WHERE my_field = 'some_value'
  
  
  Review the Logic: Make sure that the logic of your comparison makes sense in the context of your query. If you are trying to filter based on a constant, ensure that it is placed correctly.
  
  
  Test the Changes: After making the necessary changes, test the CDS view or query to ensure that the error is resolved and that the expected results are returned.
  
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. Understanding how to properly structure CDS views is crucial for avoiding such errors.
  SAP Documentation: Refer to the official SAP documentation for CDS views for more detailed information on syntax and best practices.
  Debugging Tools: Use the ABAP Development Tools (ADT) in Eclipse or the SAP HANA Studio to debug and analyze your CDS views for better insights into errors.
  
  By following these steps, you should be able to resolve the SD_CDS_PROJECTION014 error and ensure that your CDS views function correctly.