One column should contain the customers’ names, and the second one should display their full addresses. We want these data to be presented in two columns. The customers table stores all this information as well as some other data in separate columns. Suppose, we want to retrieve specific data from the customers table – the names and addresses of customers, including the cities and countries they live in. How to concatenate multiple columns in MySQL However, work routines usually involve manipulating much larger strings. It is a decent example to illustrate the way the function works. Well, we reviewed the concatenation of several text fragments into one string. Now, let us review the different cases of using CONCAT in practice. Because of that, the function returns NULL: SELECT CONCAT('First Name, ','Last Name, ',NULL,'Address') AS Result Let’s look at the example where one of the arguments is NULL.
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