如何组合在C＃中运行的两个SQLite语句？

I have these two statements:

我有这两个陈述：

db2.Execute(" UPDATE CLICKHISTORY SET " +
            " DAYOFYEAR = " + dayOfYear + " , " +
            " YEAR = " + year + " , " +
            " MONTH = " + month + " , " +
            " DAY = " + day + " , " +
            " BTNACOUNT = BTNACOUNT + 1 WHERE YYMMDD = " + yymmdd );
db2.Execute(" INSERT INTO CLICKHISTORY " +
            " (YYMMDD,DAYOFYEAR,YEAR,MONTH,DAY,BTNACOUNT) " +
            " VALUES ( " +
              yymmdd + " , " +
            dayOfYear + " , " +
            year + " , " +
            month + " , " +
            day + " , " +
            "1) WHERE changes() = 0");
db2.E