Cannot resolve the collation conflict between "SQL_Latin1_General_CP1_CI_AS" and "Thai_CI_AS"

Cannot resolve the collation conflict between "SQL_Latin1_General_CP1_CI_AS" and "Thai_CI_AS" in the equal to operation.

Cause: Temp Table that was created by your sql statement use conflict collation with default collations of database or table you querying


Resolution: I install language in Control Panel > Regional and Language Settings for Thai then restart computer. After that, it works normally.