SQL Server 存储过程错误（员工加薪）

Question

我正在尝试做一个存储过程，我正在给员工加薪，但我似乎不明白我做错了什么，它给了我以下错误

消息 8115，第 16 级，状态 8，程序 ClerkPayRise，第 8 行
将数值转换为数值数据类型时出现算术溢出错误。

我的存储过程的代码是：

CREATE PROCEDURE ClerkPayRise (@clerkID      VARCHAR (50),
                               @clerkPayrate DECIMAL(3, 2))
AS
BEGIN
   UPDATE clerks
   SET clerkPayrate = clerkPayrate + @clerkPayrate
   WHERE clerkID = @clerkID

   IF @@ROWCOUNT = 1
        SELECT 'The Hourly Pay Rise for Clerk: ' + (SELECT clerkFName + ' ' + clerkSName
                                                    FROM   clerks
                                                    WHERE  clerkID = @clerkID) + 'Was Successful'
   ELSE
        SELECT ' The Increase in Hourely Pay rate Failed, No Clerk with ID ;   ' + CAST(@clerkID AS VARCHAR (50))
END

EXECUTE ClerkPayRise
  clerk01,
  0.25
GO

DROP PROCEDURE ClerkPayRise 

我使用的样本数据如下：

CREATE TABLE clerks
(
     clerkID      VARCHAR (20) NOT NULL,
     clerkFName   VARCHAR (20),
     clerkSName   VARCHAR (20),
     clerkPayrate DECIMAL(3, 2),
     PRIMARY KEY (clerkID),
);

INSERT INTO clerks
VALUES ('clerk01' ,'Alex','Richards',7.49);

INSERT INTO clerks
VALUES ('clerk02', 'Jason','Elliot',8.25);

INSERT INTO clerks
VALUES ('clerk03', 'Mark','Alleyne',8.25);

INSERT INTO clerks
VALUES ('clerk04', 'Ricky','Ponting',8.00);

INSERT INTO clerks
VALUES ('clerk05', 'Nick','Lamb',8.75);

我将不胜感激任何指导和帮助

Answer 1

你犯了一些错误，比如

1. CREATE TABLE 文员 ( 职员ID varchar (20) NOT NULL, clerkFName varchar (20), clerkSName varchar (20), clerkPayrate decimal(3,2), 主键（职员 ID）， );

在此查询中，“PRIMARY KEY (clerkID)”之后不应有任何逗号“，”。

1. 您正在连续分配五个值，但您的表只有四列。

INSERT INTO clerks VALUES('clerk01','Mgr1', 'Alex', 'Richards',7.49); 这个查询是错误的。它分配了五个值而不是四个

如果存储过程有任何问题，请进行更正，以便我可以帮助您。

Answer 2

在存储过程主体和存储过程执行语句之后缺少GO 批处理终止符。这会导致EXEC 语句成为存储过程的一部分，因此存储过程然后递归调用自身，直到发生算术溢出。

CREATE PROCEDURE ClerkPayRise (@clerkID      VARCHAR (50),
                               @clerkPayrate DECIMAL(3, 2))
AS
BEGIN
   UPDATE clerks
   SET clerkPayrate = clerkPayrate + @clerkPayrate
   WHERE clerkID = @clerkID

   IF @@ROWCOUNT = 1
        SELECT 'The Hourly Pay Rise for Clerk: ' + (SELECT clerkFName + ' ' + clerkSName
                                                    FROM   clerks
                                                    WHERE  clerkID = @clerkID) + 'Was Successful'
   ELSE
        SELECT ' The Increase in Hourely Pay rate Failed, No Clerk with ID ;   ' + CAST(@clerkID AS VARCHAR (50))
END
GO --need this terminator

EXECUTE ClerkPayRise
  'clerk01', --also enclose string literals in single quotes
  0.25
GO