執行計數內遊標，sql server

我有一個要求，我必須找出每個表名稱已列在主表中的記錄數。執行計數內遊標，sql server

主表的樣子：的recordId，表名，行數最初所有行的行數設置爲0。

我所做的就是，建立一個光標

declare @tName nvarchar(max) 
declare @query nvarchar(max) 
declare @count int = 0 
declare curCount cursor for select TableName from MasterTable 
open curCount 
fetch next from curCount into @tName 
while @@fetch_status=0 
begin 
    set @tName = @tName 
    set @query = N'select count(ID) from ['[email protected]+']'; 
    set @count = execute @query 
    update @tempTbl set RecordCount = @count where TableName = @tName 
    print @query 
    fetch next from curCount into @tName 
end 
close curCount 
deallocate curCount

它給我的錯誤每次在這一點設置@count = execute @query，錯誤是：關鍵字'exec'附近的語法不正確。

我已經嘗試過sp_executesql @query ......它也給我錯誤，錯誤是'@query'附近的錯誤語法。

請幫我解決這個問題。

來源

2016-08-03 Anurag

見http://stackoverflow.com/questions/803211/how-to-get-sp-executesql-result-into-a-variable從sp_executesql的 – artm

@Anurag返回結果你可以避免光標獲得性能 –

你是什麼意思，該主表 –

您可以使用帶輸出參數的sp_executesql來獲取值。請試試這個：

declare @tName nvarchar(max) 
declare @query nvarchar(max) 
declare @count int = 0 
declare curCount cursor for select TableName from MasterTable 
open curCount 
fetch next from curCount into @tName 
while @@fetch_status=0 
begin 
    set @tName = @tName 
    set @query = N'select count(ID) from ['[email protected]+']'; 
    --set @count = execute @query 

    EXEC sp_executesql @query, 
        N'@count int OUTPUT', 
        @count = @count OUTPUT 


    update @tempTbl set RecordCount = @count where TableName = @tName 
    print @query 
    fetch next from curCount into @tName 
end 
close curCount 
deallocate curCount

來源

2016-08-03 05:22:55

執行計數內遊標，sql server

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