How To Fix DT182 - &-&: Switching on NOT-NULL flag for SHORT RAWSTRING type not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 182

• Message text: &-&: Switching on NOT-NULL flag for SHORT RAWSTRING type not permitted

What causes this issue?

You flagged a field of type SHORT RAWSTRING as NOT NULL. No default has
been created on the database for this type. A field flagged as NOT NULL
on the database but without a default causes errors, for example, when
an update is executed using a view in which the said Basis field is not
included.

System Response

Table is not activated.

How to fix this error?

Delete the NOT NULL flag for fields of type SHORT RAWSTRING from the
table, and activate the table again.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT182 - &-&: Switching on NOT-NULL flag for SHORT RAWSTRING type not permitted ?

  The SAP error message DT182 indicates that there is an attempt to switch on the NOT-NULL flag for a data type that is not permitted to have this flag set. Specifically, this error occurs when dealing with a SHORT RAWSTRING type in ABAP (Advanced Business Application Programming).
  Cause:
  The error arises because the SHORT RAWSTRING data type in SAP does not support the NOT-NULL attribute. In ABAP, the NOT-NULL flag is used to indicate that a field must always contain a value (i.e., it cannot be NULL). However, the SHORT RAWSTRING type is designed to hold binary data and does not allow for the NOT-NULL constraint.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Change Data Type: If you need to enforce a NOT-NULL constraint, consider changing the data type from SHORT RAWSTRING to a different type that supports NOT-NULL, such as STRING or a character type (like CHAR or VARCHAR) that can accommodate your data requirements.
  
  
  Remove NOT-NULL Flag: If the NOT-NULL constraint is not essential for your application logic, you can simply remove the NOT-NULL flag from the field definition.
  
  
  Review Data Model: Ensure that the data model aligns with the requirements of your application. If you need to store binary data and enforce NOT-NULL, you may need to rethink how you structure your data.
  
  
  Consult Documentation: Refer to the SAP documentation for data types and their constraints to ensure you are using the appropriate types for your needs.
  
  
  Related Information:
  
  Data Types in ABAP: Understanding the different data types available in ABAP and their constraints is crucial. The ABAP documentation provides detailed information on data types, including their characteristics and limitations.
  Error Handling: Familiarize yourself with common error messages in ABAP and their resolutions to improve your debugging skills.
  SAP Community: Engaging with the SAP Community can provide insights and solutions from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the DT182 error and ensure that your data model is correctly defined.