Concatenate two columns in where

Question

I have a variable which contains a full name and a table which has the names separated into first name and last name.

I am trying to update records where the first name joined with the last name equals the variable.

$row[1]="Joe Bloggs"

$sql = "UPDATE staff SET deductions='$row[15]', $phonepayment = '$row[16]' WHERE firstname.' '.lastaname= $row[1]";

How would I go about achieving this?

Answer 1

You should use CONCAT :

UPDATE staff
SET deductions='$row[15]', $phonepayment = '$row[16]'
WHERE CONCAT(firstname, ' ', lastaname) = $row[1]

Answer 2

Try with the below query,you can combine strings using + operator.

   $row[1]="Joe Bloggs"

     $sql = "UPDATE staff 
                 SET deductions='$row[15]', $phonepayment = '$row[16]' 
                 WHERE firstname+' '+lastaname= $row[1]";

Answer 3

在WHERE子句中使用此命令：

WHERE firstname + ' ' + lastname = $row[1]