How to use the SQL Server string concatenation function?

In SQL Server, you can use the CONCAT() function to concatenate strings. This function can take multiple string parameters and combine them into one string.

Here is how to use the CONCAT() function:

SELECT CONCAT(string1, string2, string3) AS result;

In the example above, string1, string2, and string3 are the strings to be concatenated. The CONCAT() function joins these strings into one resulting string and assigns the result to a column named result.

You can pass the column that contains the values to be concatenated as a parameter to the CONCAT() function. For example:

SELECT CONCAT(column1, ' is ', column2) AS result
FROM your_table;

In the example above, column1 and column2 are the column names in your_table. The CONCAT() function concatenates the values of column1, the string ‘ is ‘, and the values of column2 together, assigning the result to the result column.

Also, if the string you want to concatenate contains columns with numerical data types, you can use the CAST() function to convert it to a string before passing it to the CONCAT() function. For example:

SELECT CONCAT('The value is ', CAST(column1 AS VARCHAR(10))) AS result
FROM your_table;

In the example above, column1 is a column of numeric type. It is converted to a string using the CAST() function. Then, the string ‘The value is ‘ is concatenated with the converted string and assigned to the result column.

I hope the above information is helpful to you!