SQL Server Compact在未知數據類型上拋出異常？

Question

在SQL Server Compact Edition中，如何以編程方式創建數據庫時定義整數？我試過int,Int32,Bigint，他們都沒有工作，他們都拋出一個異常說數據類型無效？

string createTable6 = "CREATE TABLE Gates (Gate1In Bigint(5), Gate1Out Bigint(5), Gate2In Bigint(5), Gate2Out Bigint(5), Gate3In Bigint(5), Gate3Out Bigint(5), Gate4In Bigint(5), Gate4Out Bigint(5), Gate5In Bigint(5), Gate5Out Bigint(5))"; 

SqlCeConnection connexion6 = new SqlCeConnection(connectionString); 
SqlCeCommand table6 = new SqlCeCommand(createTable6, connexion6); 

try 
{ 
    connexion6.Open(); 
    table6.ExecuteNonQuery(); 
} 
catch (Exception ex) 
{ 
    MessageBox.Show(ex.ToString()); 
} 

connexion6.Close(); 

Answer 1

只需使用bigint沒有括號

string createTable6 = "CREATE TABLE Gates (Gate1In bigint, Gate1Out bigint, " + 
     "Gate2In bigint, Gate2Out bigint, Gate3In bigint, Gate3Out bigint, " + 
     "Gate4In bigint, Gate4Out bigint, Gate5In bigint, Gate5Out bigint)"; 

但是它應該int也行。如果你並不需要所有的整數空間（8個字節），你可以使用整數

Answer 2

這是你的數據類型聲明後有括號中的事實：

試試這個：

string createTable6 = "CREATE TABLE Gates (Gate1In Bigint, Gate1Out Bigint, Gate2In Bigint, " + 
     "Gate2Out Bigint, Gate3In Bigint, Gate3Out Bigint, Gate4In Bigint, Gate4Out Bigint, " + 
     "Gate5In Bigint, Gate5Out Bigint)";