調用EXEC（）生成錯誤：找不到存儲過程

Question

我需要調用一個表名稱的刪除只會在運行時知道。我有一個存儲過程動態地用表名和條件制定刪除語句，然後將該字符串作爲參數傳遞給EXEC（）函數（顯然，這在所有事務中都是這樣的）。

當我運行存儲過程時，我得到一個錯誤 - 無法找到存儲過程 - 引用我動態制定併發送給EXEC（）的語句。

這裏是我的代碼：

DECLARE @dynTab AS varchar(50), @dynDelete AS varchar(255) 
    DECLARE @crsr CURSOR 
    SET @crsr = CURSOR FAST_FORWARD 
    FOR 
    SELECT dyn_tablename FROM dyn_tab WHERE dyn_doc_type_id IN (SELECT doc_id FROM tree_tab WHERE id = @id) AND dyn_tablecreated = 1 

OPEN @crsr 
FETCH NEXT FROM @crsr 
INTO @dynTab 

WHILE @@FETCH_STATUS = 0 AND @@ERROR = 0 
    BEGIN 
     SET @dynDelete = 'DELETE FROM ' + @dynTab + ' WHERE id = ' + @id 
     EXEC @dynDelete 

     FETCH NEXT FROM @crsr 
     INTO @dynTab 
    END 

      CLOSE @crsr 
     DEALLOCATE @crsr 
     IF @@ERROR <> 0 
     BEGIN 
      ROLLBACK TRAN 
      return 0 
     END 

...

這裏的錯誤：

Could not find stored procedure 'DELETE FROM myTable WHERE id = 1111'

Answer 1

EXEC沒有括號試圖調用的過程。

嘗試EXEC(@dynDelete)

Answer 2

你需要寫
EXEC（@dynDelete）

Answer 3

使用EXEC()或EXECUTE()爲執行以下SQL查詢：

SET @dynDelete = 'DELETE FROM ' + @dynTab + ' WHERE id = ' + @id 
EXEC(@dynDelete) 

OR

SET @dynDelete = 'DELETE FROM ' + @dynTab + ' WHERE id = ' + @id 
EXECUTE(@dynDelete) 

Answer 4

如果使用從SqlDataSource中刪除DeleteCommandType EXEC