SQL Server ֪ʶ»ýÀÛ
varcharºÍnvarcharÈçºÎÑ¡Ôñ£º
varcharÔÚSQL ServerÖÐÊDzÉÓõ¥×Ö½ÚÀ´´æ´¢Êý¾ÝµÄ£¬nvarcharÊÇʹÓÃUnicoÀ´´æ´¢Êý¾ÝµÄ¡£ÖÐÎÄ×Ö·û´æ´¢µ½SQL ServerÖлᱣ´æΪÁ½¸ö×Ö½Ú£¨Ò»°ã²ÉÓÃUnico±àÂ룩£¬Ó¢ÎÄ×Ö·û±£´æµ½Êý¾Ý¿âÖУ¬Èç¹û×ֶεÄÀàÐÍΪvarchar£¬ÔòÖ»»áÕ¼ÓÃÒ»¸ö×Ö½Ú£¬¶øÈç¹û×ֶεÄÀàÐÍΪnvarchar£¬Ôò»áÕ¼ÓÃÁ½¸ö×Ö½Ú¡£ËäȻʹÓÃnvarchar´æ´¢Ó¢ÎÄ×Ö·û»áÔö´óÒ»±¶µÄ´æ´¢¿Õ¼ä£¬µ«Éè¼ÆµÄʱºòÓ¦¸Ã¾¡Á¿Ê¹ÓÃnvarcharÀ´´æ´¢Êý¾Ý¡£Ö»ÓÐÔÚÄãÈ·±£¸Ã×ֶβ»»á±£´æÖÐÎĵÄʱºò£¬²Å²ÉÓÃvarcharÀ´´æ´¢¡£
Ïà¹ØÎĵµ£º
ϵͳ»·¾³£ºWindows 7
Èí¼þ»·¾³£ºVisual C++ 2008 SP1 +SQL Server 2005
±¾´ÎÄ¿µÄ£º±àдһ¸öº½¿Õ¹ÜÀíϵͳ
ÕâÊÇÊý¾Ý¿â¿Î³ÌÉè¼ÆµÄ³É¹û£¬ËäÈ»³É¼¨²»¼Ñ£¬µ«ÊÇ×÷ΪÎÒÓÃVC++ ÒÔÀ´±àдµÄ×î´ó³ÌÐò»¹ÊÇ´«µ½ÍøÉÏ£¬ÒÔ¹©²Î¿¼¡£ÓÃVC++ ×öÊý¾Ý¿âÉè¼Æ²¢²»ÈÝÒ×£¬µ«Ò²²»ÊDz»¿ÉÄÜ¡£ÒÔÏÂÊÇÎҵijÌÐò½çÃ棬ºóÃæ ......
°´Ö¸¶¨´ÎÊýÖظ´×Ö·û±í´ïʽ¡£
Óï·¨
REPLICATE ( character_expression, integer_expression)
²ÎÊý
character_expression
×Ö·ûÊý¾ÝÐ͵Ä×ÖĸÊý×Ö±í´ïʽ£¬»òÕß¿ÉÒÔÒþʽת»»Îª nvarchar »ò ntext µÄÆäËûÊý¾ÝÀàÐ͵Ä×ÖĸÊý×Ö±í´ïʽ¡£
integer_expression
¿ÉÒÔÒþʽת»»Îª int µÄ±í´ïʽ¡£Èç¹û integer_expression Ϊ ......
SQL ServerÁ¬½ÓÖеÄËĸö×î³£¼û´íÎó:
Ò»."SQL Server ²»´æÔÚ»ò·ÃÎʱ»¾Ü¾ø"
Õâ¸öÊÇ×ÔÓµÄ,´íÎó·¢ÉúµÄÔÒò±È½Ï¶à,ÐèÒª¼ì²éµÄ·½ÃæÒ²±È½Ï¶à.
Ò»°ã˵À´,ÓÐÒÔϼ¸ÖÖ¿ÉÄÜÐÔ:
1,SQL ServerÃû³Æ»òIPµØַƴдÓÐÎó
2,·þÎñÆ÷¶ËÍøÂçÅäÖÃÓÐÎó
3,¿Í»§¶ËÍøÂçÅäÖÃÓÐÎó
Òª½â¾öÕâ¸öÎÊÌâ,ÎÒÃÇÒ»°ãÒª×ñÑÒÔϵIJ½ÖèÀ´Ò»²½²½ÕÒ³öµ¼Ö´íÎóµ ......
ÎÒÃÇÒª×öµ½²»µ«»áдSQL,»¹Òª×öµ½Ð´³öÐÔÄÜÓÅÁ¼µÄSQL,ÒÔÏÂΪ±ÊÕßѧϰ¡¢ÕªÂ¼¡¢²¢»ã×ܲ¿·Ö×ÊÁÏÓë´ó¼Ò·ÖÏí£¡
£¨1£© Ñ¡Ôñ×îÓÐЧÂʵıíÃû˳Ðò(Ö»ÔÚ»ùÓÚ¹æÔòµÄÓÅ»¯Æ÷ÖÐÓÐЧ)£º
ORACLE µÄ½âÎöÆ÷°´ÕÕ´ÓÓÒµ½×óµÄ˳Ðò´¦Àífrom×Ó¾äÖеıíÃû£¬from×Ó¾äÖÐдÔÚ×îºóµÄ±í(»ù´¡±í driving table)½«±»×îÏÈ´¦Àí£¬ÔÚfrom× ......
SQL Enlight 1.5 Æƽ⠵ڶþ°æ ÊÕ²Ø
ÆƽâÉùÃ÷£ºÎÒµÄÆƽâ½öÓÃÓÚÑо¿£¬ÇëÎðÓÃÓÚÉÌÒµÓÃ;£¬ÐèҪʹÓÃÇ빺ÂòÕý°æÈí¼þ¡£
¿É¶ñµÄUbitSoft£¬ÎÒµÄÆƽâ³öÀ´»¹Ã»¼¸Ì죬ËûµÄ³ÌÐò¾Í¸Ä±äÁËÑéÖ¤Âß¼£¬ËäÈ»ÎÒ¾õµÃSQL EnlightµÄ¹¦Äܲ»ÊǷdz£Ç¿´ó£¬µ«ÊÇËûµÄ·ÀÆƽ⹦Äܵ¹ÊÇÏÂÁ˲»ÉÙ¹¦·ò£¬³ýÁ˺ËÐÄ´úÂëÓÃvc++.net±àдµÄnative cod ......