ÇóÒ»ÌõMySqlÓï¾ä
ÓÐ2ÕÅ±í£¬ÁªÏµÈ˱íºÍÁªÏµÈË×é±í
ÁªÏµÈË×é±íÓÐÏÂÁÐ×Ö¶Î
ID Name Memo
ÁªÏµÈ˱íÓÐÏÂÁÐ×Ö¶Î
ID Name GroupID
ÁªÏµÈË×é±íµÄIDÊÇ×Ô¶¯Ôö¼ÓµÄ£¬ÏÖÔÚÏëÓÃÒ»¶ÎÓï¾äʵÏÖ²åÈëÒ»ÌõÁªÏµÈ˼Ǽ£¬
NameÊÇMichael ×éÃûÊÇSales
ÒòΪ¸ÃÁªÏµÈ˼ǼËùÔÚµÄSales×éÔÚÁªÏµÈË×é±íÖв»´æÔÚ£¬ËùÒÔ±ØÐëÏȲåÈëÃû×ÖΪSalesµÄÁªÏµÈË×飬Ȼºó¸ù¾Ý·µ»ØµÄ×éIDÔÙ²åÈëÁªÏµÈ˼Ǽµ½ÁªÏµÈ˱íÖС£ÕâÑùµÄMySql¸ÃÔõÃ´Ð´ÄØ£¿
insert into ÁªÏµÈË×é(Name,Memo) values ('Michael','Sales')
insert into ÁªÏµÈ˱í values(last_insert_id(),'Michael','Sales')
SQL code:
insert into ÁªÏµÈË×é(Name,Memo)
values ('Michael','Sales');
insert into ÁªÏµÈ˱í(Name,GroupID)
values('Michael',last_insert_id());
»ò£º
SQL code:
insert into ÁªÏµÈË×é±í(Name,Memo)
values ('Michael','Sales');
insert into ÁªÏµÈ˱í(Name,GroupID)
select 'Michael',max(ID) from ÁªÏµÈË×é±í;
Ïà¹ØÎÊ´ð£º
ÎÒÓÃÒ»¸öÑ»·ÍùÊý¾Ý¿âÀïÃæ´æÎļþ£¬±¾À´¿ÉÒÔ×÷ΪÎļþ´æ·ÅÊý¾Ý¿âÀïÃæÖ»·ÅÎļþµÄλÖõ쬵«ÊÇûÓа취×âµÄ·þÎñÆ÷ÍøÒ³¿Õ¼ä´óСÓÐÏÞÖÆÊý¾Ý¿âûÓÐÏÞÖÆ¡£Óï¾äÊÇÕâÑùµÄ
public static final DataBase.MAXSIZE=102 ......
ÎÒÔÚ×¢²áÒ³ÃæÐ´ÈëÁËÈçÏ´úÂ룺
<?php
$conn=mysql_connect("localhost","root","614510")or die("Êý¾Ý¿â·þÎñÆ÷Á¬½Ó´íÎó".mysql_error());
& ......
linux·þÎñÆ÷£¬£¬£¬
select £¨case aa when 1 then 'ʯ¼Òׯ' when 2 then '±±¾©' else 'Ìì½ò' end£© as dd from table
javaµ÷ÓÃÖ´ÐеÄsqlÓï¾ä³öÀ´µÄÊÇÂÒÂ룬Êý¾Ý¿âÖ´ÐеIJ»ÊÇ
¸ù¾ ......
ÎÒÒÔǰ°²×°ÁËÒ»´Î£¬ºóÀ´Ð¶ÔØÁË£¬ÏÖÔÚÔÙ°²×°µÄʱºò£¬Ìáʾ´íÎó£ºError 1305.Error reading from file C:DOCUME~1\LOCALS~1\Temp\mysql_server.msi.Verify that the file exists and that you can access it.
¿ÉÊÇÎÒÕÒ ......