我的存储过程存在问题：
ALTER PROCEDURE [dbo].[Sp_Calculate_TimeSheet_Global_Info]
@DateDebut date,
@DateFin date,
@UserId int,
@CA varchar(10)
AS
BEGIN
DECLARE @TaskQuery nvarchar(MAX) ;
DECLARE @OPENQUERY nvarchar(MAX),@TSQL nvarchar(MAX), @LinkedServer nvarchar(MAX);
DECLARE @DateDebut1 date;
DECLARE @DateFin1 date;
DECLARE @UserId1 int;
DECLARE @Query nvarchar(MAX);
DECLARE @cond1 nvarchar(MAX);
DECLARE @cond2 nvarchar(MAX);
DECLARE @cond3 nvarchar(MAX);
DECLARE @cond4 nvarchar(MAX);
DECLARE @cond5 nvarchar(MAX);
DECLARE @cond6 nvarchar(MAX);
DECLARE @cond7 nvarchar(MAX);
DECLARE @cond8 nvarchar(MAX);
DECLARE @cond9 nvarchar(MAX);
DECLARE @cond10 nvarchar(MAX);
DECLARE @cond11 nvarchar(MAX);
DECLARE @cond12 nvarchar(MAX);
DECLARE @cond13 nvarchar(MAX);
DECLARE @op nvarchar(MAX);
DECLARE @where nvarchar(MAX);
DECLARE @exec nvarchar(MAX);
SET NOCOUNT ON;
SET @LinkedServer = 'TASK'
SET @OPENQUERY = 'SELECT * FROM OPENQUERY('+ @LinkedServer + ','''
SET @DateDebut1 = @DateDebut;
SET @DateFin1 = @DateFin;
SET @UserId1 = @UserId;
set @op = ' UNION ';
set @where = ' where 1=1 ';
set @cond1 = ' LEFT OUTER JOIN tickets tkt ON tkt.ttick_id = h.ttick_id ';
set @cond2 = ' RIGHT OUTER JOIN tickets tkt ON tkt.ttick_id = h.ttick_id ';
set @cond3 = ' LEFT OUTER JOIN ptasks tsk ON h.ptask_id = tsk.ptask_id ';
set @cond4 = ' RIGHT OUTER JOIN tasks tsk ON h.ptask_id = tsk.ptask_id ';
set @cond5 = ' LEFT OUTER JOIN phases ph ON tsk.phase_id = ph.phase_id ';
set @cond6 = ' RIGHT OUTER JOIN tasks tsk ON h.ptask_id = tsk.ptask_id ';
set @cond7 = ' LEFT OUTER JOIN projects p ON ph.proj_id = p.proj_id ';
set @cond8 = ' RIGHT OUTER JOIN projects p ON ph.proj_id = p.proj_id ';
set @cond9 = ' and h.hours_spent >= str_to_date(''''' + convert(varchar,@DateDebut,103) + ''''', ''''%d/%m/%Y'''')';
set @cond10 = ' and h.hours_spent <= str_to_date(''''' + convert(varchar,@DateFin,103) + ''''', ''''%d/%m/%Y'''')';
set @cond11 = ' and h.user_id=' + cast(@UserId as varchar);
set @cond12 = ' and
( ph.phase_name like ''''' + '%' + @CA +'%' +''''' and (p.proj_name not like ''''' + '%' + @CA +'%' +''''' or p.proj_name is null) ) or
( (ph.phase_name not like ''''' + '%' + @CA +'%' +''''' or ph.phase_name is null) and (p.proj_name not like ''''' + '%' + @CA +'%' +''''' or p.proj_name is null) and tsk.ptask_name like ''''' + '%' + @CA +'%' +''''') or
( (ph.phase_name not like ''''' + '%' + @CA +'%' +''''' or ph.phase_name is null) and (p.proj_name not like ''''' + '%' + @CA +'%' +''''' or p.proj_name is null) and (tsk.ptask_name not like ''''' + '%' + @CA +'%' +''''' or tsk.ptask_name is null) and tkt.ttick_name like ''''' + '%' + @CA +'%' +''''') or
( (p.proj_name not like ''''' + '%' + @CA +'%' +''''' or p.proj_name is null) and tsk.ptask_name like ''''' + '%' + @CA +'%' +''''' and (tsk.phase_id is null or tsk.phase_id =-1) ) or
( (p.proj_name not like ''''' + '%' + @CA +'%' +''''' or p.proj_name is null) and tkt.ttick_name like ''''' + '%' + @CA +'%' +''''')
';
set @cond13 = ''') src';
SET @TaskQuery =N' SELECT h.hours_id , h.hours_spent as TimeSheet_Date, h.hours_hours as Hour_Number,h.hours_note as Hour_Note,(case when h.ttick_id is null or h.ttick_id=-1 then tsk.ptask_name else tkt.ttick_name end) as Task_Ticket_Libelle,(case when h.ttick_id is null or h.ttick_id=-1 then h.ptask_id else h.ttick_id end) as Task_Ticket_Id,h.proj_id as Project_Id,(case when h.ttick_id is null or h.ttick_id=-1 then 1 else 0 end) as Is_Task,h.user_id as User_Id,p.proj_name as Project_Name, u.user_uname as User_Name from users u RIGHT OUTER JOIN user_hours h on u.user_id=h.user_id ' ;
SET @Query = @TaskQuery ;
SET @TaskQuery = @Query+ @cond1 ;
SET @TaskQuery = @TaskQuery + @op + @Query + @cond2 ;
SET @Query = @TaskQuery ;
SET @TaskQuery = @Query + @cond3 ;
SET @TaskQuery =@TaskQuery + @op + @Query + @cond4 ;
SET @Query = @TaskLandQuery ;
SET @TaskQuery = @Query + @cond5 ;
SET @TaskQuery =@TaskQuery + @op + @Query + @cond6 ;
SET @Query = @TaskQuery ;
SET @TaskQuery = @Query + @cond7 ;
SET @TaskQuery =@TaskQuery + @op + @Query + @cond8 ;
SET @TaskQuery = @TaskQuery + @where ;
IF(@DateDebut is not null)
BEGIN
SET @TaskQuery = @TaskQuery + @cond9 ;
END
IF(@DateFin is not null)
BEGIN
SET @TaskQuery =@TaskQuery + @cond10 ;
END
IF(@UserId is not null)
BEGIN
SET @TaskQuery = @TaskQuery + @cond11 ;
END
IF(@CA is not null)
BEGIN
SET @TaskQuery = @TaskQuery + @cond12 ;
END
set @TaskQuery = @TaskQuery + @cond13 ;
set @exec = @OPENQUERY+@TaskQuery;
delete from [dbo].[Timesheet_Global_Info];
insert into [dbo].[Timesheet_Global_Info](
[hours_id]
,[TimeSheet_Date]
,[Hour_Number]
,[Hour_Note]
,[Task_Ticket_Libelle]
,[Task_Ticket_Id]
,[Project_Id]
,[Is_Task]
,[User_Id]
,[Project_Name]
,[User_Name]
)
EXEC (@exec) ;
END
当我执行此程序时，我收到此错误：
Msg 103，Level 15，State 1，Line 3 以SELECT h.hours_id，h.hours_spent开头的字符串有TimeSheet_Date，h.hours_hours有Hour_Number，h.hours_note有Hour_Note，（例如，当h.ttick'太长时。最大长度为8000.
异常是由于这一行EXEC (@exec) ;。
所以我需要知道
答案 0 :(得分：3)
您正在使用OPENQUERY，根据MSDN，查询的最大大小为8KB，即8000个字符，超出了您的查询范围。
OPENQUERY ( linked_server ,'query' )
＆＃39;查询＆＃39;查询字符串是否在链接服务器中执行。该 字符串的最大长度为8 KB。
答案 1 :(得分：1)
您超过最大长度字符，在这种情况下，您必须将动态查询拆分为多个部分并按合并执行。
Declare @Query1 VARCHAR(MAX),@Query2 VARCHAR(MAX)
SET @Query1='SELECT * FROM'
SET @Query2=' Employee'
EXEC (@Query1+@Query2)
在你的情况下可能是
EXEC (@OPENQUERY+@TaskQuery);
如果您仍然遇到同样的错误，请将您的变量拆分为更多...
答案 2 :(得分：1)
为什么不使用sp_executesql？
EXEC sp_executesql @exec
我可以看到@exec是nvarchar(max)，您可以毫无问题地传递它。
在64位服务器上，字符串的大小限制为2 GB，最大大小为nvarchar（max）。
修改
使用sp_executesql
OPENQUERY INSTEAD
DECLARE @paramDef nvarchar(max) = '@TaskQuery nvarchar(max)'
SELECT @exec = 'INSERT INTO [dbo].[Timesheet_Global_Info] EXEC '+QUOTENAME(@LinkedServer)+'.database.dbo.sp_executesql @TaskQuery',
EXEC sp_executesql @exec, @paramDef, @TaskQuery=@TaskQuery