Learn Debugging SQL Topic Debugging SQL Finding the root cause of common SQL query problems. Articles Article 1 Debugging SQL syntax errors What to do when your query returns an error message. Read more Article 2 Debugging SQL query logic What to do when your query returns data that looks wrong. Read more Article 3 Debugging duplicated data in SQL query results What to do when your query returns data with duplicated rows or columns. Read more Article 4 Debugging missing data in SQL query results What to do when your query returns data that's missing rows or columns. Read more
