c#£¬mysql£¬×ÔÔö³¤
Íùmysql¿âÖвåÈëÒ»ÌõÊý¾Ý£¨´Ë±íÓÐ×ÔÔö³¤ÁУ©£¬ÔÚc#´úÂëÀïÈçºÎд1¾äsql£¬²åÈëºó·µ»ØÕâ¸ö×ÔÔö³¤ÁÐÖµ
Õâ¸ö²»¹ØC#µÄʰɣ¬ÕâÊÇsqlÓï¾ä½â¾öµÄÊÂÇé
¼ÈÈ»ÊÇ×ÔÔöÁУ¬¼ÈÈ»ÊÇвåÈëµÄÒ»Ìõ¼Ç¼£¬ÄÇôÕâÌõ¼Ç¼µÄÕâ¸ö×Ö¶ÎÖµ£¬¾ÍÊÇ×î´óµÄ
ËùÒÔ¡£¡£
insertÍê±Ïºó£¬select max(×ÔÔöÁÐ×Ö¶Î) from ±í
¾Í¿ÉÒÔÁË¡£¡£
MYSQLÖеÄLAST_INSERT_ID()ºÍMSSQLÖеÄ@@IDENTITY
ÎÒÏëÖªµÀÔÚc#ÖÐÓÐʲôºÃ°ì·¨£¬Ö»ÓÃÁ¬½ÓÒ»´ÎÊý¾Ý¿â£¬¾ÍʵÏÖ£¬×îºÃÓÐʾÀý´úÂë
ÎÒ×Ô¼ºÖ»ÄÜÏëµ½£ºÏÈExecuteNonQuery(" insert .....");
ÔÙExecuteScalar£¨"select last_insert_id()"£©
ExecuteDataSet(" insert ..... select last_insert_id()");
¿ÉÒÔдһÆð£¬·µ»ØÓÃdataset»¹ÊÇdatareader£¬Ëæ±ãÄãÁË¡£
ExecuteDataSet(" insert ..... select last_insert_id()");
insertÓï¾äºÍselectÓï¾äÖ®¼äÒª²»Òª";"ºÅÄØ£¿ÒªµÄ»°»á±¨´í£¬Ëµ";"ÊÇ·Ç·¨×Ö·û
±§Ç¸£¬ÎÒÏÖÔÚûmysql£¬²»ÄܲâÊÔ£¨ÄǸö´íÎó£¬ÊÇÎÒÓÃoracle±¨³öÀ´µÄ£¬insert...;select ...ÕâÖÖ¸ñʽ£©
²»ÒªµÄ
ºÃµÄ£¬Ð»Ð»£¬»Ø¼ÒÊÔÊÔ£¬¹þ¹þ¹þ
ms sqlserverÊÇÒª£»µÄ
¿ÉÒÔ select @@IDENTITY
Ïà¹ØÎÊ´ð£º
ÈçÌâ Êý¾ÝÊÇBLOBÀàÐÍ Ôõô²ÅÄÜÐÞ¸ÄÆäÖеÄijЩֵ
BLOBÖдæÈëµÄÊÇʲôÄÚÈÝ£¿
¼ÙÉè×Ö¶ÎmemoΪblobÀàÐÍ£¬ÔÚ¸Ã×ֶεÄÖµÇ°ÃæÔö¼Ó×Ö·û´®'add--'
Ôò²Ù×÷Óï¾äÈçÏ£º
SQL code:
update tb_blog set memo=concat( ......
ÎÒµÄMysql ʹÓõÄʱºò ÓÃdos½¨Á¢µÄÊý¾Ý±í ÔÚdosÖÐÄÜÏÔʾ³öÖÐÎÄ
µ«ÊÇÔÚ ÆäËûµÄ¿ÉÊÓÒ³Ãæ ºÍÍøÒ³Öж¼ÏÔʾÂÒÂë ÈçºÎ½â¾ö£¿
ÔÚmysql¿ØÖÆÌ¨:show variables like 'char%';Ìù½á¹û³öÀ´¿´¿´¡£
mysqlÃüÁîÐÐģʽÏÂ: ......
ÔÚÊý¾Ý¿âÖÐÓÐÕÅ±í£¬ÓÐid,nameÁ½ÁУ¬id ÊÇÖ÷¼ü,ûÓÐÉèÖÃ×ÔÔöÊôÐÔ,ÔÚ³ÌÐòÖÐÈ¡³öÕâÕűí·ÅÈëdatatable£¬ÔÚÕâ¸ödatatableÖвåÈëÒ»Ìõ¼Ç¼£¬µ±¸üÐÂÊý¾Ý¿âʱÌáʾidÁв»ÄÜΪ¿Õ£¬ÇëÎʸÃÔõô½â¾ö£¿
¸øËüÒ»¸öÖµ£¡£¡Ö÷¼ü²»ÄÜΪ¿Õ ......
txt ºÍXML ¸ñʽÏàÓ¦
²»½èÖúDataSet
µ¼Èë¶ÁÈ¡TXTÎļþ
È»ºóÖ±½ÓдÈëXML(ͬһÎļþ,²»Í¬Êý¾Ý,µÝÔöÔÊý¾ÝûÓб»¸²¸ÇÇé¿öÏÂÔö¼ÓÊý¾Ý.)
½Ì¸öÒªµã»ò×îºÃÊÇÓиö´úÂëÌáʾµÄ
¹ý·ºÃºº °ï¸öæÈö^^
²»»á£¬°ïÂ¥Ö÷ ......
ÎÒµÄmysqlÔõôûÓа취дÈëÖÐÎÄÊý¾Ý£¿Ö»ÒªÊÇÊý¾ÝдÈëÊý¾Ý¿âʱ ¾Í»á±ä³ÉÈý¸öÎʺŠ£¿Çë½Ì¸ßÈË£¡£¡
linux? ÔõôдÈëµÄ
ÔÚmysqlÖÐÖ´ÐÐ show variables like 'character%'Ìù½á¹û³öÀ´¡£
ÔÚ°²×°MYSLQʱ½«Êý¾Ý¿âµÄ×Ö· ......