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Hey Guys This is Manish from The Code Makers and Today in this oracle database video we will see How to use concatenation operator for combining the output of two or more columns and How to use literal character string First of all Open up your SQL developer tool or you can use terminal or command prompt whatever you like. In our previous SQL tutorial we saw how to retrieve data using SQL select statement Something like SELECT firstname, lastname FROM employees; As you can see the result of this SQL query, we get two independent columns values. Isnt it cool if we can change this output in more user friendly and meaning full string. In this SQL tutorial we will see how to do this. Now we are going to combine the values of column first name and last name using concatenation operator. Concatenation operator is the binary operator provided by oracle acts on two operands. These operands can be columns or a literal character string. First we will see how to use this concatenation opera