How To Fix DT980 - Index & too wide for DB & (width: &, maximum width: &)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 980

• Message text: Index & too wide for DB & (width: &, maximum width: &)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT980 - Index & too wide for DB & (width: &, maximum width: &) ?

  The SAP error message DT980 indicates that an index is too wide for the database. This typically occurs when the total length of the fields included in the index exceeds the maximum allowed width for an index in the database system being used. The error message provides two values: the actual width of the index and the maximum allowed width.
  Cause:
  
  Field Lengths: The fields included in the index have a combined length that exceeds the database's limit for index width.
  Data Types: Certain data types (like VARCHAR, CHAR, etc.) can contribute to the overall width of the index, especially if they are defined with large lengths.
  Database Limitations: Different databases have different limitations on index sizes. For example, some databases may have a limit of 900 bytes for an index.
  
  Solution:
  
  Review Index Definition: Check the fields included in the index. Consider removing less critical fields from the index to reduce its width.
  Change Field Types: If possible, change the data types of the fields to shorter types. For example, if a field is defined as VARCHAR(255), consider reducing it to VARCHAR(100) if it meets the business requirements.
  Create Composite Indexes: Instead of a single wide index, consider creating multiple smaller composite indexes that can still support the necessary queries.
  Database Configuration: If you have control over the database configuration, check if there are settings that can be adjusted to allow for wider indexes, but this is generally not recommended as it may affect performance.
  Consult Documentation: Refer to the documentation of the specific database you are using to understand its limitations and best practices for index creation.
  
  Related Information:
  
  Database-Specific Limits: Different databases (e.g., Oracle, SQL Server, MySQL) have different limits on index sizes. It's important to refer to the documentation for the specific database you are using.
  Performance Considerations: While reducing index width can resolve the error, it’s also important to consider the performance implications of any changes made to the indexing strategy.
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error message, as SAP may provide updates or best practices for handling such issues.
  
  By addressing the index width issue through these solutions, you should be able to resolve the DT980 error and ensure that your database operations run smoothly.