What Is The Purpose Of The DISTINCT Keyword In SQL?
DISTINCT keyword removes duplicates from SQL query results, returning only unique records for specified columns. Use with SELECT statement to eliminate redundancy & find unique values.
What is the Purpose of the DISTINCT Keyword in SQL? The DISTINCT keyword in SQL is used to remove duplicate rows from the result set of a query. It ensures that the query returns only unique records for the specified columns. How Does DISTINCT Work? When a SELECT query retrieves data, there may be duplicate rows in the output. By adding the DISTINCT keyword, SQL filters out these duplicates, keeping only one occurrence of each unique combination of values in the specified columns. Syntax: SELECT DISTINCT column1, column2, ... FROM table_name;...