How to combine three rows of data in SQL into one colum…

You can combine three rows of data into one column using the UNION ALL operator. Here is an example:

SELECT column_name FROM table_name WHERE condition
UNION ALL
SELECT column_name FROM table_name WHERE condition
UNION ALL
SELECT column_name FROM table_name WHERE condition;

In the example above, you need to replace “column_name” with the actual column name of the column to merge, and replace “table_name” with the actual table name of the data to merge. “Condition” is an optional filter for selecting the data to merge. If no condition is required, the WHERE clause can be omitted.

Please note that using the UNION ALL operator will merge all rows, including duplicates. If you do not want to include duplicates, please use the UNION operator instead.