How To Fix DT232 - Only one long field allowed per table

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 232

• Message text: Only one long field allowed per table

What causes this issue?

The table contains more than one long field (field of data type LCHR or
LRAW). This is not allowed.

System Response

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

How to fix this error?

A table may only contain one long field. You must remove all other long
fields from the table. Please note that long fields must always be
located at the very end of the field list of a table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT232 - Only one long field allowed per table ?

  The SAP error message DT232, which states "Only one long field allowed per table," typically occurs when you are trying to define a database table in the Data Dictionary (SE11) that includes more than one long field (i.e., a field of type STRING or LONG).
  Cause:
  In SAP, a "long field" is a field that can hold large amounts of data, such as text or binary data. The limitation of having only one long field per table is due to the way SAP handles data storage and retrieval. When you attempt to create or modify a table to include more than one long field, the system raises this error to enforce the restriction.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Table Structure: Check the structure of the table you are trying to create or modify. Identify the fields that are defined as long fields.
  
  
  Limit Long Fields: If you find that there are multiple long fields, you will need to redesign the table structure. Consider the following options:
  
  Combine Fields: If possible, combine the data from multiple long fields into a single long field.
  Use Shorter Fields: If the data can be represented in a shorter format, consider using standard data types like CHAR, VARCHAR, or TEXT instead of STRING or LONG.
  Create Additional Tables: If the data logically belongs to different entities, consider creating separate tables for the additional long fields and establish a relationship between them.
  
  
  
  Adjust Data Model: If the long fields are necessary for your application, you may need to rethink your data model to accommodate the limitations of SAP's database structure.
  
  
  Testing: After making the necessary changes, test the table definition to ensure that it meets your requirements and does not raise the error again.
  
  
  Related Information:
  
  Data Dictionary (SE11): This is the transaction code in SAP where you can create and manage database tables, views, data elements, domains, etc.
  Field Types: Familiarize yourself with the different field types available in SAP, including their limitations and appropriate use cases.
  SAP Notes: Check SAP Notes and documentation for any updates or additional guidelines regarding table design and limitations.
  
  By following these steps, you should be able to resolve the DT232 error and successfully define your database table in SAP.