「獲取預期條件的上下文中指定的非布爾類型的表達式」錯誤與我的查詢？

Question

我得到的錯誤，當我通過此查詢到我的PROC即執行動態SQL：

"select @display = @display + gp2.ProblemDesc + ''|' ' 
from (SELECT gp.GrantProblemID, gp.ProblemDesc, gps.GrantProblemStatus, row_number() over (partition by gp.grantproblemid order by p.periodid desc) ranking 
from MergedProgressReport.dbo.[PeriodAgencyGrantProblems] pagp  
inner join MergedProgressReport.dbo.PeriodAgencyGrants pag on pag.PeriodAgencyGrantsID = pagp.PeriodAgencyGrantID 
and pag.GrantNumber = ''2011UMWX0001'' 
inner join MergedProgressReport.dbo.periodagencyinfo pai on pag.PeriodAgencyInfoID = pai.PeriodAgencyInfoID 
inner join MergedProgressReport.dbo.Periods p on p.PeriodID = pai.PeriodID 
inner join MergedProgressReport.dbo.GrantProblemStatus gps on pagp.GrantProblemStatusID = gps.GrantProblemStatusID 
inner join MergedProgressReport.dbo.GrantProblems gp on pagp.GrantProblemID = gp.GrantProblemID 
and gp.GrantProblemAreaID = 7) xx right join MergedProgressReport.dbo.GrantProblems gp2 on xx.GrantProblemID = gp2.GrantProblemID and xx.ranking = 1 
where gp2.GrantProblemAreaID = 7 " 

我PROC：

CREATE proc [dbo].[Review_Get_PrePopValue](@sqlQuery nvarchar(500), @display nvarchar(200) OUTPUT) 
as 

EXEC sp_executesql @sqlQuery, 
     N'@display varchar(200) output', 
     @display = @display output 

Answer 1

我的錯誤，我的參數@sqlQuery爲nvarchar（500）太小，它截斷了我的PROC語句中的sql語句。只是將其重新設置爲3000.