Question

I have a view “name_all” in mysql which structure is

colName     varchar(30)  utf8_general_ci

date    varchar(76)     utf8_general_ci

name  varchar(43)   latin1_swedish_ci

when I try to run query:

SELECT CONCAT(`colname`,' of Mr. ',`name`,' Expire on ',`date`) FROM name_all

it give error:

 #1271 - Illegal mix of collations for operation 'concat'

"colName" is basically a Column Name which is used as a row in this View

"date" is mysql Date which is converted in this format '%a %D %b, %Y'

"name" is concatenation of firstname, middlename, lastname from a table

How do I solve this issue and what is my mistake?

when i run query SHOW VARIABLES LIKE ‘collation%’
Result is

  Variable_name         Value
  collation_connection  utf8_general_ci
  collation_database    latin1_swedish_ci
  collation_server      latin1_swedish_ci

Answer 1

Even though you say “all the tables and column are in latin1_swedish_ci”, what yo u posted is:

colName   varchar(30)   utf8_general_ci

date   varchar(76)   utf8_general_ci

name   varchar(43)   latin1_swedish_ci

Changing colName and date collation to latin1_swedish_ci will probably sort out your problem.