How To Fix MC762 - View field & (data element or type/length different in union select &)

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 762

• Message text: View field & (data element or type/length different in union select &)

What causes this issue?

In a view on several unions, different data elements or different types
and lengths were assigned to the same view field.

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?

The runtime object generated for the view uses the data element or
the type/length definition of the first view field defined (view field
with the lowest position).
&HINTS&
Views with unions are currently only supported internally at SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC762 - View field & (data element or type/length different in union select &) ?

  The SAP error message MC762 typically occurs in the context of data extraction or reporting, particularly when dealing with the Data Warehousing or Logistics Information System (LIS) modules. This error indicates that there is a mismatch in the data types or lengths of fields being used in a union select operation.
  Cause:
  The error message MC762 arises due to the following reasons:
  
  
  Data Type Mismatch: The fields being selected in the union operation have different data types. For example, one field might be defined as a character type while another is defined as a numeric type.
  
  
  Length Mismatch: Even if the data types are the same, if the lengths of the fields differ, this can also trigger the error. For instance, if one field is defined as CHAR(10) and another as CHAR(20), this will lead to a conflict.
  
  
  Union Select Operation: The error specifically points to issues in a union select operation where the fields being combined must have compatible data types and lengths.
  
  
  Solution:
  To resolve the MC762 error, you can take the following steps:
  
  
  Check Data Types: Review the data types of the fields involved in the union select operation. Ensure that they are the same across all selects in the union.
  
  
  Adjust Field Lengths: If the data types are the same but the lengths differ, you may need to adjust the lengths to ensure they match. This can often be done by using casting or converting functions in your SQL query.
  
  
  Modify the Query: If necessary, modify the SQL query to ensure that all selected fields in the union have compatible data types and lengths. For example, you can use the CAST or CONVERT functions to standardize the data types.
  
  
  Check Data Dictionary: If you are unsure about the data types and lengths, check the data dictionary (SE11) for the relevant tables and fields to confirm their definitions.
  
  
  Testing: After making the necessary adjustments, test the query again to ensure that the error is resolved.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary), SE38 (ABAP Editor), or SE80 (Object Navigator) to analyze and modify the relevant database objects.
  Documentation: Refer to SAP documentation or help resources for more detailed information on data types and SQL operations in SAP.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message or provide additional context.
  
  By following these steps, you should be able to identify and resolve the cause of the MC762 error in your SAP environment.