How To Fix SDDL_PARSER_MSG099 - Select * cannot be used to add to the projection list

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 099

• Message text: Select * cannot be used to add to the projection list

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG099 - Select * cannot be used to add to the projection list ?

  The SAP error message SDDL_PARSER_MSG099 indicates that there is an issue with the use of the SELECT * statement in a context where it cannot be used to add to the projection list. This typically occurs in the context of SAP HANA or when working with SQL views or procedures where the projection list is being defined.
  Cause:
  The error arises because the SQL syntax or the context in which SELECT * is being used does not allow for the selection of all columns in the way that is being attempted. This can happen in several scenarios, such as:
  
  Incompatible Context: The SELECT * statement is being used in a place where a specific list of columns is required, such as in a subquery or when defining a view.
  Projection List Restrictions: The system may have restrictions on using SELECT * in certain types of queries or when working with specific database objects.
  SQL Syntax Error: There may be a syntax error or misconfiguration in the SQL statement that leads to this error.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Specify Columns Explicitly: Instead of using SELECT *, explicitly list the columns you want to include in your query. For example:
  SELECT column1, column2, column3 FROM your_table;
  
  
  Check Context: Ensure that you are using the SELECT statement in a context that allows for the selection of all columns. If you are defining a view or a projection, make sure to adhere to the syntax and requirements for that context.
  
  
  Review SQL Syntax: Double-check your SQL syntax for any errors or misconfigurations that might be causing the issue. Ensure that the SQL statement is valid and follows the rules of the SQL dialect you are using.
  
  
  Consult Documentation: Refer to the SAP HANA SQL Reference or relevant documentation for specific guidelines on using SELECT statements and the limitations that may apply.
  
  
  Related Information:
  
  SAP HANA SQL Reference: This documentation provides detailed information on SQL syntax, including the use of SELECT statements and projections.
  Performance Considerations: Using SELECT * can lead to performance issues, especially if the table has many columns or if you are working with large datasets. It is generally a good practice to select only the columns you need.
  Error Handling: Implement error handling in your SQL scripts to catch and manage errors gracefully, which can help in debugging issues like this in the future.
  
  By following these steps, you should be able to resolve the SDDL_PARSER_MSG099 error and successfully execute your SQL query.