How To Fix DT482 - Key & is too wide; table will not be created on DB &

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 482

• Message text: Key & is too wide; table will not be created on DB &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT482 - Key & is too wide; table will not be created on DB & ?

  The SAP error message DT482 indicates that a key field in a database table is too wide, which prevents the table from being created in the database. This typically occurs when the combined length of the key fields exceeds the maximum allowed size for a primary key in the underlying database system.
  Cause:
  
  Key Field Length: The total length of the key fields defined in the table exceeds the maximum limit set by the database. Different databases have different limits for key lengths (e.g., in some databases, the maximum length for a primary key can be 900 bytes).
  Data Types: The data types of the key fields may have large sizes (e.g., VARCHAR, CHAR) that contribute to the overall length.
  Multiple Key Fields: If there are multiple fields defined as part of the primary key, their combined length may exceed the limit.
  
  Solution:
  
  Review Key Fields: Check the definition of the key fields in the table. You can do this in the Data Dictionary (SE11) by examining the table structure.
  Reduce Key Length: If possible, reduce the length of the key fields. For example, if you have a VARCHAR field defined as VARCHAR(255), consider reducing it to VARCHAR(100) if it meets your business requirements.
  Limit Number of Key Fields: If there are multiple fields in the primary key, consider whether all of them are necessary. You may be able to remove one or more fields from the key.
  Use Surrogate Keys: Instead of using natural keys (which may be wide), consider using a surrogate key (e.g., an integer or GUID) as the primary key. This can help reduce the overall key length.
  Database-Specific Settings: Check the database documentation for any specific settings or configurations that might allow for larger key sizes, though this is less common.
  
  Related Information:
  
  Database Documentation: Refer to the documentation of the specific database you are using (e.g., Oracle, SQL Server, HANA) for details on key length limits.
  SAP Notes: Check SAP Notes for any known issues or recommendations related to this error message.
  Data Dictionary (SE11): Use transaction SE11 to analyze the table structure and make necessary adjustments.
  Testing: After making changes, test the table creation again to ensure that the error is resolved.
  
  By following these steps, you should be able to resolve the DT482 error and successfully create the database table.