Why Am I Getting \'Not Unique Table/Alias\' Error in My SQL Query?

Error Analysis: "Not Unique Table/Alias"

Encountering the error "ERROR 1066 (42000): Not unique table/alias" often indicates a lack of explicit referencing or proper table aliases in your SQL query. When joining multiple tables, it's crucial to ensure that columns with the same name are clearly identified.

Solution:

To resolve this issue, explicitly reference columns by using table aliases. Here's an optimized query that resolves the ambiguity:

SELECT
  pa.ProjectID,

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