Code Inspection: Duplicating column name in SELECT

Reports duplicated names of column aliases in SELECT lists.

Example (Sybase ASE):

CREATE TABLE t1 (a TEXT, b INT, c INT);

SELECT a AS x, b AS x FROM t1;

The x alias name is used for a and b columns. These assignments are highlighted as errors because you cannot use identical alias names for columns in Sybase ASE.

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Last modified: 16 July 2021