如何從sqlite數據庫中獲取日期到字符串變量？

Question

我想從sqlite數據庫中獲取日期。表列名稱是「日期」，列類型是日期。

SQLiteCommand sqlite_cmd; 
SQLiteDataReader sqlite_datareader; 
sqlite_conn = new SQLiteConnection(sConnectionString); 
sqlite_conn.Open(); 
sqlite_cmd = sqlite_conn.CreateCommand(); 

sqlite_cmd.CommandText = "Select * from prework where pid = " + iProjectID + " and chainage = " + fChainage + ";"; 

try 
{ 
    sqlite_datareader = sqlite_cmd.ExecuteReader(); 
    while (sqlite_datareader.Read()) 
    { 
     String str = sqlite_datareader["date"].ToString(); 
    } 
} 
catch 
{ 
    return; 
} 

我想在str變量中得到日期。

Answer 1

查詢更改這個

"Select * from prework where pid = '" + iProjectID + "' and chainage = '" + fChainage + "';