access2000 ллselect sum(*) from products where id in (5,2,3,4,4,5,6,8,8,6); Õâ¸öÖØ¸´µÄÒ²¿ÉÒÔËã½øÈ¥£¿ Ŷ£¬Õâ¸öµ¹ÍüÁË£¬ÎÒÔÙ¿´¿´ select sum(price) from products where id in (5,2,3,4,4,5,6,8,8,6);
ÖØ¸´Ã»Ê£¬²»Ó°Ïì ¶ÔÓÚÖØ¸´µÄÅä¼þ²»»áÖ»¼ÆËãÒ»´Î°É£¿ÎҵijõÖԿɲ»ÊÇÕâÑùµÄ¡¡ Ò»¾äsql¸ã²»¶¨£¬¿ÉÒÔÏÈÓÃselect * from products where id in (5,2,3,4,4,5,6,8,8,6)²éѯ³ö¸½¼þ°üÄÚ¸½¼þµ¥¼Û£¬È»ºóÔÙ°´Ã¿ÖÖ¸½¼þ¸öÊýÀÛ¼ÆÇóºÍ¡£ select sum(price) from products where id='5'or id='2'or id='3'......
VS2008ÖÐC#²Ù×÷AccessÊý¾Ý¿â£¬ÍøÉÏÏÂÔØÁËÒ»¸öÀ࣬¿ÉÒÔÕý³£Á¬½Ó£¬¶ÁÈ¡Êý¾Ý£¬µ«ÊDzåÈëɾ³ý²Ù×÷ËÆºõÓÐÎÊÌ⣬ÒÔÏÂÊDz¿·Ö´úÂ룺 Êý¾Ý¿âÀࣺ namespace AccessDb { public class AccessDbClass { ......