![]() Here we also discuss the definition and how does PostgreSQL Concat() function work? Along with different examples and its code implementation. ![]() The CONCAT() function operates on string type input only.We can build the required output string by concatenating more than one strings. ![]() The CONCAT() function is a variadic function that can take a list of the argument as input.As we can concatenate the two or more string using the string concatenation operator (||), which fails with NULL arguments where the CONCAT() function ignores NULL arguments concatenate them.We will concatenate the stud_fname and stud_lname of the student table by using the following statement, which a single comma and space will separate.Ĭoncat_ws (', ', stud_fname, stud_lname) AS student_full_name The PostgreSQL also provides us with the function named CONCAT_WS, which means concatenate with separator. We can use the PostgreSQL CONCAT() function for various operations like we need to build a statement that will give us the resultant string by combining the following strings:ĬONCAT('Student name is of ', LENGTH (stud_fname), ' characters' ) We will concatenate the values of the stud_fname and stud_lname columns of the student table by using the following SQL statement and snapshot.ĬONCAT (stud_fname, ' ', stud_lname) AS "Students fullname" Illustrate the result of the above INSERT statement by using the following SQL statement and snapshot. INSERT INTO student(stud_fname,stud_lname) Most of the 'major programming languages' you are thinking of did not exist when SQL was created. We will insert some data into the student table by using the INSERT INTO statement as follows. SQL was initially developed at IBM deep in the mainframe era. We will create a table named ‘student’ by using the CREATE TABLE statement as follows: SELECT CONCAT ('Edu', 'CBA') as CONCAT_TABLE Illustrate the CONCAT function by using the following SELECT statement and a snapshot The string type means the input argument should be of any of the following data types:Įxamples to Implement PostgreSQL CONCAT() FunctionĬonsider the following example, which concatenates the two strings by using the PostgreSQL CONCAT() function.The input argument provided to the function should be string type or convertible to the string type.The PostgreSQL CONCAT() considers each element of a list as an argument as this function is a VARIADIC function that can take any number of elements as input. ![]() How does PostgreSQL CONCAT() Function Work? SELECT FirstName LastName AS FullName FROM Employees. Explanation: The PostgreSQL CONCAT() function takes an argument list as an input. In PostgreSQL, like Oracle, concatenation is done with the (two pipes) operator. ![]()
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