How do I return two columns in SQL?

How do I fetch two columns in SQL?

The SQL SELECT Statement1SELECT column1, column2, ... FROM table_name;2SELECT * FROM table_name;3Example. SELECT CustomerName, City FROM Customers;4Example. SELECT * FROM Customers;

How do I show two columns in one column in SQL?

Here is an example: SELECT COALESCE(column1,'') + COALESCE(column2,'') FROM table1. For this example, if column1 is NULL , then the results of column2 will show up, instead of a simple NULL . Hope this helps!

How do I display two columns from different tables in SQL?

The FULL OUTER JOIN adds back all the rows that are dropped from both the tables.1Right Outer Join. A RIGHT OUTER JOIN adds back all the rows that are dropped from the second (right) table in the join condition, and output columns from the first (left) table are set to NULL. ... 2Left Outer Join. ... 3Full Outer Join.

Can we group by 2 columns in SQL?

SELECT Statement: The GROUP BY Clause in SQL A GROUP BY clause can contain two or more columns—or, in other words, a grouping can consist of two or more columns.