Error
Error Code:
1326
SAP S/4HANA Error 1326: Duplicate Attribute Name
Description
This error, ERR_SQLSCRIPT_DUPLICATE_ATTRIBUTE_NAME, indicates that an attribute (like a column or parameter) has been defined with the same name more than once within a SQLScript context. It commonly occurs during the activation or execution of database procedures, views, or functions in SAP HANA, preventing successful compilation or data retrieval.
Error Message
ERR_SQLSCRIPT_DUPLICATE_ATTRIBUTE_NAME: Duplicate attribute name
Known Causes
4 known causesDuplicate Column Definition
Occurs when defining a table, view, or result set where two or more columns are assigned the exact same name.
Alias Conflict in SELECT Statement
Arises when a SELECT statement uses the same alias for different expressions or columns, leading to ambiguity in the output.
Redundant Parameter Naming
Encountered when a stored procedure or function is defined with multiple input or output parameters bearing identical names.
Calculated Column Naming Collision
Happens when creating a calculated column in an analytic view or calculation view with a name that already exists among the base columns or other calculated columns.
Solutions
3 solutions available1. Identify and Rename Duplicate Attribute in CDS View medium
Locate the CDS view with the duplicate attribute and rename it.
1
Access the SAP Fiori Launchpad and navigate to the 'View Browser' app (or use transaction `SE11` and search for CDS views).
2
Search for the CDS view that is causing the error. You might need to infer this from the context where the error occurs (e.g., a specific report or transaction).
3
Open the CDS view in the ABAP Development Tools (ADT) for Eclipse or in `SE11`.
4
Carefully examine the SELECT list and any associations within the CDS view. Look for fields or elements that have been given the same alias or name.
Example of a potential issue in a CDS view:
@AbapCatalog.sqlViewName: 'MYVIEW'
define view MY_DUPLICATE_VIEW as select from my_table {
key field1 as AttributeName,
field2 as AttributeName -- Duplicate attribute name here
};5
Rename one of the duplicate attribute names to a unique and descriptive name.
Corrected example:
@AbapCatalog.sqlViewName: 'MYVIEW'
define view MY_DUPLICATE_VIEW as select from my_table {
key field1 as UniqueAttributeName1,
field2 as UniqueAttributeName2
};6
Save and activate the modified CDS view.
7
Re-run the operation that previously triggered the error to confirm the issue is resolved.
2. Review and Correct Database Procedure/Function advanced
Examine SQLScript code within database procedures or functions for duplicate attribute names.
1
Identify the database procedure or function that is executing when the error occurs. This might be evident from the application logs or the stack trace.
2
Access the procedure or function using the SAP HANA Studio or SAP HANA Cockpit.
3
Analyze the SQLScript code, paying close attention to SELECT statements, variable declarations, and returned structures. Look for any instances where the same name is used for different attributes or columns.
Example of a potential issue in a SQLScript procedure:
CREATE PROCEDURE MY_PROCEDURE AS
BEGIN
DECLARE var1 INT;
DECLARE var2 INT;
SELECT COUNT(*) INTO var1 FROM my_table;
SELECT COUNT(*) INTO var2 FROM another_table;
RETURN SELECT var1 AS ResultCount, var2 AS ResultCount; -- Duplicate attribute name in RETURN statement
END;4
Rename the duplicate attribute name to ensure uniqueness.
Corrected example:
CREATE PROCEDURE MY_PROCEDURE AS
BEGIN
DECLARE var1 INT;
DECLARE var2 INT;
SELECT COUNT(*) INTO var1 FROM my_table;
SELECT COUNT(*) INTO var2 FROM another_table;
RETURN SELECT var1 AS Table1Count, var2 AS Table2Count; -- Unique attribute names
END;5
Save and recompile the procedure or function.
6
Execute the procedure or function to verify that the error is resolved.
3. Check for Duplicates in Table/View Definitions easy
Ensure no duplicate column names exist within a single table or view definition.
1
Identify the specific table or view mentioned in the error context.
2
Use transaction `SE11` in SAP GUI or the 'Data Dictionary' app in Fiori to display the table or view definition.
3
Carefully review the list of fields (columns) defined for the table or view. Look for any identical names.
Example of a problematic table definition (hypothetical):
Table Name: ZMY_DATA
Field Name | Data Type | Description
-----------------|-----------|------------
FIELD1 | CHAR(10) | First Field
FIELD2 | INT | Second Field
FIELD1 | CHAR(10) | Duplicate Field Name4
If duplicate column names are found, rename one of them to a unique identifier. This typically involves creating a new version of the table/view or modifying the existing one if it's a custom object.
For custom tables/views, you would modify the definition in `SE11` or ADT.5
Save and activate the corrected table/view definition.
6
Test the functionality that previously caused the error.