如何解决我遇到的这个 SQL 服务器错误？

Question

As you can see below I am trying to execute a stored procedure by passing the two parameters, I get error like

Msg 102, Level 15, State 1, Line 19
Incorrect syntax near 'C:\SQL_Backup\Test.bak'.

Code:

EXEC Proc_RestoreSQL_Database ('C:\SQL_Backup\Test.bak','DMTest')

Stored procedure being executed:

ALTER PROCEDURE [dbo].[Proc_RestoreSQL_Database]
    @DISK nvarchar(1000),
    @DBName varchar(1000)
AS
BEGIN
    -- Create DB with script(DMUtilityTest)
    CREATE DATABASE [@DBName]

    -- restore
    RESTORE DATABASE [@DBName] 
    FROM DISK = N'@DISK' 
END

Answer 1

There is no need to CREATE the database if you are immediately going to restore it.

Just execute the restore directly. Do not wrap the database name parameter in [] , nor the filename parameter in quotes '' , you only need this if you are embedding the actual name, not parameters.

You should also use more sensible parameter types

CREATE OR ALTER PROCEDURE [dbo].[Proc_RestoreSQL_Database]
    @DISK nvarchar(255),
    @DBName sysname
AS
    RESTORE DATABASE @DBName
    FROM DISK = @DISK;

GO

This obviously assumes you are going to restore to the same location. You may want to pass new locations using MOVE TO @newFile

---

To execute it, again do not wrap in parenthesis () , just specify the parameter names

EXEC Proc_RestoreSQL_Database @DISK = 'C:\SQL_Backup\Test.bak', @DBName = 'DMTest';