C# uses SMO library to automatically build sqlserver table

        Using SMO to automatically create tables, you need to add a lot of references, such as ConnectionInfo, Management.Sdk.Sfc, SqlEnum, etc., you can directly search for SMO in Nuget, and then find an Unofficial.Microsoft.SQLServer.SMO.2014, which is provided by Nils Luck. However, this already contains all the references we need this time:

        We fully realize the automatic table creation based on the information here. I will demonstrate it directly in the code, which can be changed according to actual needs. I mainly use Dictionary<string,Dictionary<string,string>> to transfer table information. Of course, The actual situation is still changed according to their actual needs:

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
        }
    }
}