通过SQL Server创建视图

Question

USE PayCalculator; 
CREATE VIEW PayCalculator.Pay 
AS
    SELECT
       PayStructure.WeekIncluded AS PaidWeeks, 
       PayStructure.PayDate AS PayDate, 
       dbo.PayStructure.PayYear AS PayYear, 
       Months.PMonth 
    FROM 
       PayStructure,Months
    INNER JOIN 
       Months.PMonth ON PayStructure.MonthID = PayCalculator.dbo.Months.PMonths

似乎连接的视图不会创建。我很困惑为什么，因为它在语法上似乎是正确的。

我得到的错误：

  

Msg 208，Level 16，State 1，Procedure Pay，Line 5   无效的对象名称'Months.PMonth'。

但是，数据库中所有列出的列都是正确的

dbo.Months ：

dbo.PayStructure ：

即使使用：

USE PayCalculator;
GO

SELECT 
    PayStructure.WeeksIncluded, PayStructure.PayDate, PayStructure.PayYear
FROM 
    PayStructure AS sd
JOIN 
    AnualMonths.PMonths AS p ON sd.MonthID = AnualMonths.PMonths 
GO

Answer 1

您的语法非常混乱，您使用的是旧的连接语法（FROM PayStructure, Months）以及普通的连接语法（JOIN ON...） - 您还尝试直接连接到< strong>列而不是表格（即您尝试INNER JOIN Months.PMonth而不是INNER JOIN Months

FROM PayStructure, Months
INNER JOIN Months.PMonth ON PayStructure.MonthID = PayCalculator.dbo.Months.PMonths

根据我的想法，尝试下面的脚本：

USE PayCalculator; 
CREATE VIEW PayCalculator.Pay 
AS

SELECT ps.WeekIncluded as PaidWeeks,
       ps.PayDate as PayDate,
       ps.PayYear as PayYear,
       months.PMonth
FROM dbo.PayStructure ps
JOIN dbo.Months months on ps.MonthId = months.ID

Answer 2

连接列的数据类型应该相同：

CREATE VIEW PayCalculator.Pay 
AS

SELECT ps.WeekIncluded as PaidWeeks,
       ps.PayDate as PayDate,
       ps.PayYear as PayYear,
       months.PMonth
FROM dbo.PayStructure ps
JOIN dbo.Months months on ps.MonthId = months.ID