C#使用SMO库自动建sqlserver的表

        利用SMO自动建表，需要添加很多引用，比如ConnectionInfo、Management.Sdk.Sfc、SqlEnum等，可以直接在Nuget中查找SMO，然后找到一个Unofficial.Microsoft.SQLServer.SMO.2014,由Nils Luck提供的即可，这个已经包含了此次我们需要的所用引用：

        我们这里完全实现根据信息来自动建表，我将直接在代码中演示，可根据实际需要进行变化，我这里主要利用Dictionary<string,Dictionary<string,string>>来进行表信息的传递，当然，实际情况还是根据自己实际需求进行变化：

static void Main(string[] args)
{
    try
    {
        //利用Dictionary进行表信息传递，string传递列名，另一个Dictionary中包含类型和大小
        Dictionary<string,Dictionary<string,string>> columnInfo = new         Dictionary<string,Dictionary<string,string>>();
        Dictionary<string,string> typeAndSize1 = new Dictionary<string,string>();
        typeAndSize1.Add("INT","0");
        columnInfo.Add("NUMBER",typeAndSize1);

        Dictionary<string,string> typeAndSize2 = new Dictionary<string,string>();
        typeAndSize2.Add("DATETIME","0");
        columnInfo.Add("NAME",typeAndSize2);

        bool isSuccess = AutoCreateDataTable("XX.XXX.XX.XXX","DATABASE","TABLETEST",columnInfo);
    }
    catch(Exception ex)
    {
        Console.WriteLine(ex);
    }
}
//自动创建数据表
private static bool AutoCreateDataTable(string dataSource,string dataBaseName,string tableName,Dictionary<string,Dictionary<string,string>> columnInfo)
{
    bool isSuccess = false;
    try
    {
        //连接数据库拼接
        string connectionString = "Data Source = " + dataSource + ";Initial Catalog = " + dataBaseName + ";Integrated Security = SSPI;";
        SqlConnection cn = new SqlConnection(connectionString);
        Server server = new Server(new ServerConnection(cn));
        //数据库
        DataBase db = server.Database[dataBaseName];
        //建表
        Table newTable = new Table(db,tableName);
        //ID列信息
        Column idColumn = new Column(newTable,"ID");
        //类类型
        idColumn.DataType = DataType.Int;
        //是否null
        idColumn.Nulllable = false;
        //是否自增
        idColumn.Identity = true;
        //起始大小
        idColumn.IdentitySeed = 1;
        //步长
        idColumn.IdentityIncrement = 1;
        //将列放入table中
        newTable.Columns.Add(idColumn);
        //索引
        Index.index = new Index(newTable,"PK_ID");
        Index.IndexKeyType = IndexKeyType.DriprimaryKey;
        index.IndexedColumns.Add(new IndexedColumn(index,"ID"));
        newTable.Indexes.Add(index);
        //遍历Dictionary获取表信息
        foreach(string key in columnInfo.Keys)
        {
            Column column = new Column(newTable,key);
            column.DataType = GetDataType(columnInfo[Key]);
            newTable.Columns.Add(column);
        }
        newTable.Create();
        isSuccess = true;
    }
    catch(Exception ex)
    {
        isSuccess = false;
        Console.WriteLine(ex);
    }
    return isSuccess;
}

private static DataType GetDataType(Dictionary<string,string> typeAndSize)
{
    foreach(string s in typeAndSize.Keys)
    {
        switch(s.ToString())
        {
            case "VARCHAR":
                if("MAX".Equals(typeAndSize[s]))
                {
                    return DataType.VarCharMax;
                }
                else
                {
                    return DataType.VarChar(int.Parse(typeAndSize[s]));
                }
            case "INT":
                return DataType.Int;
            case "FLOAT":
                return DataType.Float;
            //类型太多，根据自己实际需要进行添加
        }
    }
}