SET QUOTED_IDENTIFIER ON

 SET QUOTED_IDENTIFIER ON
 SELECT * FROM "student"   WHERE stuname='江玉婷'
 
 SET QUOTED_IDENTIFIER ON
 SELECT * FROM [student] WHERE stuname='江玉婷'
 
 SET QUOTED_IDENTIFIER OFF
 SELECT * FROM [student]   WHERE stuname='江玉婷'
 
 SET QUOTED_IDENTIFIER OFF
 SELECT * FROM [student]   WHERE stuname='江玉婷'