How To Fix SDDL_PARSER_MSG434 - CAST in CAST is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 434

• Message text: CAST in CAST is not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG434 - CAST in CAST is not supported ?

  The SAP error message SDDL_PARSER_MSG434 with the description "CAST in CAST is not supported" typically occurs in the context of SAP HANA when there is an issue with the SQL syntax, particularly when using the CAST function within another CAST function. This is not allowed in SAP HANA SQL syntax.
  
  Cause:
  The error arises when a SQL query attempts to perform a nested CAST operation, which is not supported. For example, if you have a query that looks something like this:
  SELECT CAST(CAST(column_name AS new_data_type) AS another_data_type) FROM table_name;
  This will trigger the error because the inner CAST is being used within another CAST.
  
  Solution:
  To resolve this error, you need to refactor your SQL query to avoid nesting CAST functions. Instead, you can perform the casting in separate steps or ensure that you only use a single CAST operation. Here’s how you can do it:
  
  
  Single CAST: If possible, combine the data types in a single