tsql - 操作数类型冲突：使用 convert NVARCHAR 时 datetime2 与 int 不兼容

Question

由于错误，我无法保存此视图。我没有使用演员表，因为我认为没有必要。我是 T-SQL 的新手，由于 SSMS 没有给出任何提示，因此我不清楚如何追踪 hte 错误的来源：

SELECT        TOP (100) PERCENT TLInstance, Data, MONTH(Timestamp - 1) AS RPTMth, Timestamp
FROM            dbo.VIEW_TLData
WHERE        (Timestamp BETWEEN CONVERT(DATE, { fn CONCAT(CONVERT(NVARCHAR, CASE WHEN MONTH(GETDATE()) = 1 THEN YEAR(GETDATE()) - 1 ELSE YEAR(GETDATE()) END), '-02-01') }, 102) AND CONVERT(DATE, 
                         { fn CONCAT(CONVERT(NVARCHAR, CASE WHEN MONTH(GETDATE()) = 1 THEN YEAR(GETDATE()) ELSE YEAR(GETDATE()) END + 1), '-02-01') }, 102)) AND (DAY(Timestamp) = 1) OR
                         (Timestamp BETWEEN CONVERT(DATE, { fn CONCAT(CONVERT(NVARCHAR, CASE WHEN MONTH(GETDATE()) = 1 THEN YEAR(GETDATE()) - 1 ELSE YEAR(GETDATE()) END), '-02-01') }, 102) AND CONVERT(DATE, 
                         { fn CONCAT(CONVERT(NVARCHAR, CASE WHEN MONTH(GETDATE()) = 1 THEN YEAR(GETDATE()) ELSE YEAR(GETDATE()) END + 1), '-02-01') }, 102)) AND (DAY(Timestamp) = 1) AND (TLInstance = '238' OR
                         TLInstance BETWEEN '255' AND '259' OR
                         TLInstance = '289' OR
                         TLInstance = '421' OR
                         TLInstance = '426' OR
                         TLInstance = '427' OR
                         TLInstance = '428' OR
                         TLInstance = '429' OR
                         TLInstance = '430' OR
                         TLInstance = '431' OR
                         TLInstance = '433' OR
                         TLInstance = '441' OR
                         TLInstance = '442' OR
                         TLInstance = '444' OR
                         TLInstance = '491')
ORDER BY TLInstance

知道我做错了什么吗？