Sorry I should have been clearer on that. It’s a DB user created via “Mysql Database Server” -> “User Permissions” -> “Create New User”
Under “Mysql Database Server” -> “Database Permissions”, this specific user has access only to the desired database. The database name is entered verbatim with no wild card.
I’m on Centos 6.6 with Mysql Ver 14.14 Distrib 5.5.43 just in case it matters.