How To Fix AD614 - Key length in table & > maximum key length (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 614

• Message text: Key length in table & > maximum key length (&)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AD614 - Key length in table & > maximum key length (&) ?

  The SAP error message AD614 indicates that the key length in a specified table exceeds the maximum allowed key length. This typically occurs when you are trying to create or modify a database table or index, and the key length exceeds the limits set by the database system.
  Cause:
  
  Key Length Exceeded: The primary cause of this error is that the combined length of the fields defined as keys in the table exceeds the maximum key length allowed by the database. Different databases have different limits on key lengths (e.g., for SAP HANA, the maximum key length is typically 255 bytes).
  Data Type Issues: Using data types that consume more bytes than expected (e.g., using CHAR instead of VARCHAR) can also lead to exceeding the key length.
  Composite Keys: If you are using composite keys (multiple fields as a key), the total length of all key fields combined may exceed the limit.
  
  Solution:
  
  Review Key Fields: Check the fields defined as keys in the table. You can do this by going to the Data Dictionary (SE11) and reviewing the table definition.
  Reduce Key Length: If possible, reduce the number of fields in the key or change the data types of the key fields to shorter types. For example, if you are using CHAR, consider using VARCHAR if the length can vary.
  Split the Table: If the table design allows, consider splitting the table into multiple tables to reduce the key length.
  Database-Specific Settings: If you are using a specific database (like HANA, Oracle, etc.), check the documentation for that database to understand the key length limits and adjust your design accordingly.
  Consult SAP Notes: Check for any relevant SAP Notes that might provide additional guidance or solutions for this specific error.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE11 (Data Dictionary) to view and modify table definitions.
  Database Documentation: Refer to the documentation for the specific database you are using with SAP to understand key length limitations.
  SAP Community: The SAP Community forums can be a valuable resource for finding similar issues and solutions shared by other users.
  
  By following these steps, you should be able to resolve the AD614 error and ensure that your table definitions comply with the key length restrictions.