using SqlSugar;
using System.Diagnostics;
static SqlSugarClient GesmartDb()
{ 
    SqlSugarClient Db = new(new ConnectionConfig()
    {
        ConnectionString = "Server=blv-cloud-db.mysql.rds.aliyuncs.com;Database=Face;Uid=blv_rcu;Pwd=fnadiaJDIJ7546;charset=utf8;port=3307;",
        DbType = SqlSugar.DbType.MySql,
        InitKeyType = InitKeyType.Attribute,
        IsAutoCloseConnection = true,
    });
    //用来打印Sql方便调式
    Db.Aop.OnLogExecuting = (sql, pars) =>
    {
        Db.Utilities.SerializeObject(pars.ToDictionary(it => it.ParameterName, it => it.Value));
        Debug.WriteLine(sql);
    };
    return Db;
}
using (SqlSugarClient db = GesmartDb())
{
    // 直接在SQL中使用日期函数，无需参数
    int rowsAffected = db.Ado.ExecuteCommand(
        "DELETE FROM pmslog WHERE Creationtime < DATE_SUB(CURDATE(), INTERVAL 45 DAY);"+
        "DELETE FROM pmsinterface WHERE DateTime < DATE_SUB(CURDATE(), INTERVAL 45 DAY);" +
        "DELETE FROM devicestatushistory WHERE CreateTime < DATE_SUB(CURDATE(), INTERVAL 45 DAY);"
    );
    Console.WriteLine("已经执行" + rowsAffected);
    
}