How to query a SQL database using a variable from an excel column?

Hello I am tryng to query an SQL database using “Select * From database_yz Where CUSTOMER = “+strAccountID+”” and I recived ERROR [HY000] [Oracle][ODBC][Ora]ORA-00933: SQL command not properly ended. I have tried “Select * From database_yz Where CUSTOMER in “(+strAccountID+”)” but the same result.

thanks