C＃SMO-檢查，如果該表在

Question

我寫了一個C＃代碼轉移使用SMO兩個遠程服務器之間的表在目標服務器已經存在，我想知道的是，反正是有檢查表中已經存在具有確切架構，列名稱，數據類型，約束和一切的目標服務器。然後，我不必每次都刪除現有的表並創建新的表。

Answer 1

嘗試這一塊代碼段：

Server srv1 = new Server("<server_location>"); 
srv1.ConnectionContext.LoginSecure = false; 
srv1.ConnectionContext.Login = "<username>"; 
srv1.ConnectionContext.Password = "<password>"; 
srv1.ConnectionContext.Connect(); 
Database sourceDb = srv1.Databases["<database_name>"]; 
Table sourceTbl = sourceDb.Tables["<table_name>"]; 

Server srv2 = new Server("<server_location>"); 
srv2.ConnectionContext.LoginSecure = false; 
srv2.ConnectionContext.Login = "<username>"; 
srv2.ConnectionContext.Password = "<password>"; 
srv2.ConnectionContext.Connect(); 
Database destinationDb = srv1.Databases["<database name>"]; 
Table destinationTbl = sourceDb.Tables["<table_name>"]; 

var isMatched = CompareTables(sourceTbl, destinationTbl);  

比較方法：

bool CompareTables(Table source, Table destination) 
{ 
    // Column count doesn't match 
    if (!source.Columns.Count.Equals(destination.Columns.Count)) 
     return false; 

    // Assuming the order of the Columns are same in both the Tables 
    for (int i = 0; i < source.Columns.Count; i++) 
     if (!source.Columns[i].Equals(destination.Columns[i])) 
      return false; 

    // Constraints count doesn't match 
    if (!source.Checks.Count.Equals(destination.Checks.Count)) 
     return false; 

    // Assuming the order of the Contraints are same in both the Tables 
    for (int i = 0; i < source.Checks.Count; i++) 
     if (!source.Checks[i].Equals(destination.Checks[i])) 
      return false; 

    return true; 
}