Error encountered in SQL statement, solve

The phenomenon and background of the problem

Why? sql Statements in SQL server Can be executed normally , Add quotation marks and semicolons before Visual Studio Error running in

Problem related code , Do not paste screenshots

string sql = "select Patient .*, Register . Registration date , Register . Serial number , Register . Registration department , Register . Registered doctor , Register . No , Register . Registration fee , Register . Do you charge? , Register . Return number from Patient , Register where Patient . Outpatient No = Register . Outpatient No ";

Operation results and error reporting contents

stay “ There is a syntax error near the registration ”

My solution ideas and tried methods

stay sqlserver Can be executed normally

What I want to achieve

Don't complain

sql Code near statement

Called SqlUtil The method in