ACCESSÈçºÎʵÏÖ¿ªÁ¢·½
accessÓÐûÓпªÁ¢·½º¯Êý£¬ÔõÑùʵÏÖ£¿£¿
Ò»¸ö¼òµ¥µÄÊý¾ÝÎÊÌâ¡£ ÆäËüÄãÖ»ÒªÏëµ½Á¢·½Ò²¾ÍÊÇ -3 ´Î·½¾Í¸ã¶¨ÁË¡£
select 2^-3
SELECT 2^-3
½á¹ûÊÇΪ0.125£¬ÎªÊ²Ã´£¬Èç¹ûÎÒÏëµÄÊÇ8µÄÁ¢·½¸ùÊÇ2£¬ÊÇÕâÑùдÂð SELECT 8^-3
·¸Á˸ö´íÎó
Á¢·½ÆäʵÊÇ 1/3
SELECT 8^(1/3)
³Ë·½µÄ·ûºÅÊÇ ^ ¿ª´Î·½¾ÍÊÇ ¼¸·ÖÖ®Ò»³Ë·½£¬ÕâÊÇÊýѧÎÊÌâ
Ïà¹ØÎÊ´ð£º
ÎÒÓÃAccessÊý¾Ý¿â×öÁËÒ»¸öͼÊéÊý¾Ý¿â£¬ÀïÃæÓÐÒ»¸ö×Ö¶ÎÊÇISBN£¬¾ÍÊÇISBNºÅ£¬µ«ÊÇÖ»µÄÒ»×Ü·ÖͼÊéдµÄISBNºÅ£¬ÓеÄûд£¬Ð´µÄÄÇÒ»²¿·ÖÓеÄISBNÊÇÖØ¸´µÄ£¬ÄÜ·ñÓÃSQLÓïÑÔ°ÑÖØ¸´µÄ¹ýÂ˵ô£¬µ«Ã»Ð´ISBNºÅµÄͼÊé²»ÄܹýÂ˵ô£¬È ......
ACCESSÊý¾Ý¿âÖÐÓÐÒ»¸ötablename±í£¬Éè¼ÆÈçÏÂ
±àºÅ,ÊéÃû,×÷Õß,³ö°æÊ±¼ä,³ö°æÉç,ISBN,Ŀ¼,¼ò½é
ÆäÖгý¡°±àºÅ¡±Îª×Ô¶¯±àºÅÍ⣬ÆäËü¶¼Îª¡°±¸×¢¡±
ÆäÖÐ"±àºÅ"άһ£¬ÔÚ¡°ISBN¡±ÖÐÓеÄΪ¿ÕÖµ£¬ ......
DbgridÁ¬½Óaccess ÏÔʾÊý¾ÝʱÍ϶¯¹ö¶¯ÌõËÀ»ú£¿Ôõô½â¾ö°¡£¿
»úÆ÷Ì«²îÁ˰ɣ¿
ÊDz»ÊÇÄãÊý¾ÝÁ¿Ì«´óÁ˰¡
ÄãÊý¾ÝÉÙһЩ¿´¿´»¹ËÀ»úÂð£¿
Êý¾ÝºÜÉÙ°¡ ¾ÍÒ»Ò³¡£
ÎÒÔÚBCB6ÏÂ×ö¹ý²»ÉÙ DBGRID+ACCESS £¬´ÓÀ´Ã»ÓÐÓöµ½ ......
Âé·³¸÷λ°ïæ¿´¿´°¡
´úÂëÈçÏ£º
CoInitialize(NULL);
_ConnectionPtr pConn(__uuidof(Connection));
_RecordsetPtr pRst(__uuidof(Recordset));
pConn->ConnectionString="Provider ......
ÓÐÒ»¸öÊý¾Ý¿âÀïÖ»ÓÐ2WÌõÊý¾Ý²»µ½£¬È´ÓÐ500MÄÇô´ó,Ôõô»ØÊ°¡£¿ÊÇACCESSµÄÊý¾Ý¿â¡£ºóÀ´ÎÒ°ÑACCESSµ¼Èëµ½MSSQLÖУ¬Ò²Õ¼ÓÃÁË500M×óÓҵĿռ䣬Èç¹ûѹËõÊý¾Ý¿âÄØ£¿Çë¸ßÊÖÖ¸µã
ѹËõÊý¾Ý¿â£¿ÄÜ×öµ½Ã´...
ÆÚ´ý¸ßÈËÖ¸µã ÎÒ ......