sql 使用Try Catch进行SQL错误处理

Posted 2021-05-13

BEGIN    TRANSACTION  

 BEGIN   TRY  
     DECLARE   @NewCategoryID   INT  

     INSERT INTO   Production.ProductCategory(   NAME   )  
     VALUES   (   'Widgets'   )  

     SET   @NewCategoryID   =   SCOPE_IDENTITY()  
    
     INSERT INTO   Production.ProductSubcategory(ProductCategoryID,   NAME   )  
     VALUES   (@NewCategoryID,   'Super Widgets'   )  
    
     --DELETE FROM Production.ProductCategory  
     --WHERE ProductCategoryID = 1  
    
     COMMIT    TRANSACTION  
 END   TRY  
 BEGIN   CATCH  
     ROLLBACK    TRANSACTION  

  PRINT ERROR_MESSAGE()  
  PRINT ERROR_NUMBER()  
  PRINT ERROR_LINE()  
 END   CATCH  

 SELECT    *  
 FROM   Production.ProductCategory