如何使用sql server轉換沒有字符串連接的程序？

Question

你可以幫我在這裏，我試圖獲得執行SQL語句作爲一個語句，而不使用字符串連接。代碼如下。然後我試着做這附近有一個錯誤，並提前

感謝，

ALTER PROCEDURE [dbo].[GetAdminData] 

(
    @FirstName varchar(50)= null, 
    @LastName varchar(50)= null, 
    @Email varchar(50)= null, 
    @StartDate datetime = null, 
    @EndDate datetime= null, 
    @RbValue bit = 0, 
    @ShareholderStatus int = 0, 
    @EmailStatus int = 0, 
    @State nvarchar(10) = 0, 
    @debug bit = 0 
) 
AS 
DECLARE @sql  nvarchar(MAX),         
     @paramlist nvarchar(4000) 

    IF @FirstName IS NOT NULL OR @LastName IS NOT NULL OR @Email IS NOT NULL OR (@StartDate IS NOT NULL And @EndDate IS NOT NULL) 
    OR @ShareholderStatus >= 0 OR @EmailStatus >= 0 OR @State IS NOT NULL 

SELECT @sql = 'select TOP 1000 id, firstname, lastname, email, state, country, status,Emaildate1, 
case when shareexchangestatus = 0 Then ''None'' 
    when shareexchangestatus = 1 Then ''Saved'' 
    when shareexchangestatus = 2 Then ''Submitted'' 
    when shareexchangestatus = 3 Then ''Pending'' 
    when shareexchangestatus = 4 Then ''ReSubmitted'' 
    when shareexchangestatus = 5 Then ''Accepted'' 
    when shareexchangestatus = 6 Then ''Paid'' 
    when shareexchangestatus = 7 Then ''Transfered'' 


Else '''' END As shareexchangestatus,lastlogindate FROM dbo.zookeepers_ShareholderExchange z with (nolock) where 1=1 ' 


    SELECT @sql = @sql + 'AND (@FirstName IS NULL OR z.firstname LIKE @FirstName + ''%'') '  
    SELECT @sql = @sql + 'AND (@LastName IS NULL OR z.lastname LIKE @LastName + ''%'') '  
    SELECT @sql = @sql + 'AND (@Email IS NULL OR z.email = @Email) ' 

    IF @StartDate IS NOT NULL AND @EndDate IS NOT NULL 
     BEGIN 
      if @RbValue = 1 
       BEGIN 
        SELECT @sql = @sql + ' AND z.Emaildate1 BETWEEN convert(char(23), @StartDate, 126) AND convert(char(23), @EndDate, 126)' 
       END 
      else 
       BEGIN 
        SELECT @sql = @sql + ' AND z.lastlogindate BETWEEN convert(char(23), @StartDate, 126) AND convert(char(23), @EndDate, 126)' 
       END 
     END 


    IF @ShareholderStatus > 0           
    SELECT @sql = @sql + ' AND z.shareexchangestatus = @ShareholderStatus ' 
    SELECT @sql = @sql + 'AND (@EmailStatus IS NULL OR z.emailstatus = @EmailStatus) ' 
    SELECT @sql = @sql + 'AND (@State IS NULL OR z.state = @State)' 

    SELECT @sql = @sql + ' ORDER BY z.lastlogindate'       
    IF @debug = 1              
    PRINT @sql 

    SELECT @paramlist = '@FirstName nvarchar(50),        
        @LastName nvarchar(50),       
        @Email nvarchar(100),       
        @StartDate datetime,       
        @EndDate datetime, 
         @RbValue bit, 
         @ShareholderStatus int, 
         @EmailStatus int, 
         @State nvarchar(10)' 

EXEC sp_executesql @sql, @paramlist,        
        @FirstName , @LastName, @Email, @StartDate,   
        @EndDate, @RbValue,@ShareholderStatus,@EmailStatus, 
        @State 

Answer 1

我補充說：「與重新編譯」，它會在每次執行時重新編譯腳本，但因爲似乎有必要查詢每次運行都有不同的參數。

試試這個：

alter PROCEDURE [dbo].[GetAdminData] 
(
    @FirstName varchar(50)= null, 
    @LastName varchar(50)= null, 
    @Email varchar(50)= null, 
    @StartDate datetime = null, 
    @EndDate datetime= null, 
    @RbValue bit = 0, 
    @ShareholderStatus int = 0, 
    @EmailStatus int = 0, 
    @State nvarchar(10) = 0, 
    @debug bit = 0 
) with recompile 
AS 
BEGIN 
DECLARE @sql  nvarchar(MAX),         
     @paramlist nvarchar(4000) 

IF @FirstName IS NOT NULL OR @LastName IS NOT NULL OR @Email IS NOT NULL OR (@StartDate IS NOT NULL And @EndDate IS NOT NULL) 
OR @ShareholderStatus >= 0 OR @EmailStatus >= 0 OR @State IS NOT NULL 


select TOP 1000 id, firstname, lastname, email, state, country, status,Emaildate1, 
case shareexchangestatus 
    when 0 Then 'None' 
    when 1 Then 'Saved' 
    when 2 Then 'Submitted' 
    when 3 Then 'Pending' 
    when 4 Then 'ReSubmitted' 
    when 5 Then 'Accepted' 
    when 6 Then 'Paid' 
    when 7 Then 'Transfered' 
Else '' END As shareexchangestatus, 
lastlogindate 
FROM dbo.zookeepers_ShareholderExchange z with (nolock) 
where (@FirstName IS NULL OR z.firstname LIKE @FirstName + '%') 
AND (@LastName IS NULL OR z.lastname LIKE @LastName + '%') 
AND (@Email IS NULL OR z.email = @Email) 
AND (@EmailStatus IS NULL OR z.emailstatus = @EmailStatus) 
AND (@State IS NULL OR z.state = @State) 
ORDER BY z.lastlogindate 

END