Msg 102, Level 15, State 1, Line 1 Incorrect syntax near '/'

Question

I'm using this query

Insert Into Menus(null, 'Item One', 'Desc') // First Parent Item
Insert Into Menus(null, 'Item Two', 'Desc') // Second Parent Item
Insert Into Menus(null, 'Item Three', 'Desc') // Third Parent Item

Insert Into Menus(1, 'Item Sub One', 'Desc') // Child of First Parent Item
Insert Into Menus(2, 'Item Sub Two', 'Desc') // Child of Second Parent Item
Insert Into Menus(3, 'Item Sub Three', 'Desc') // Child of Third Parent Item

and I get this error

Msg 102, Level 15, State 1, Line 1
Incorrect syntax near '/'

Answer 1

在第一组括号内将3列名称固定为其正确的名称：

Insert Into Menus (col1name, col2,col3) values (null, 'Item One', 'Desc');

Answer 2

Another problem :

// this is NOT a correct SQL comment
/* this is a correct SQL comment */ 
-- this also is a correct SQL comment