SQLITE ÏÂÃæµÄÓï¾ä¸ÃÔõôд
ÔÚ SQL SERVER ÖеÄÓï¾ä ÊÇ£º
SELECT
(ROW_NUMBER() OVER (ORDER BY Name) - 1) / 4 + 1 AS TitleRow,
(ROW_NUMBER() OVER (ORDER BY Name) - 1) % 4 + 1 AS TitleColumn,
Name,
Color,
ThumbNailPhoto
from Production.MailLabel
ÔÚSQLITE ÖиÃÔõôд £¿ лл´óÏÀ
SQL code:
select
((select count(*) from MailLabel where Name<=a.Name)-1)/4+1 as TitleRow,
((select count(*) from MailLabel where Name<=a.Name)-1)%4+1 as TitleColumn,
Name,
Color,
ThumbNailPhoto
from MailLabel a
SQL code:
sqlite> select * from MailLabel;
name|color|ThumbNailPhoto
1|1|1
2|2|2
3|3|3
4|4|4
5|5|5
6|6|6
7|7|7
sqlite> select
...> ((select count(*) from MailLabel where Name<=a.Name)-1)/4+1 as TitleRow,
...> ((select count(*) from MailLabel where Name<=a.Name)-1)%4+1 as TitleColumn,
...> Name,
...> Color,
...> ThumbNailPhoto
...> from MailLabel a;
TitleRow|TitleColumn|name|color|ThumbNailPhoto
1 | 1 | 1 | 1 | 1
1 | 2 | 2 | 2 | 2
Ïà¹ØÎÊ´ð£º
1¡¢juliandayÕâ¸öº¯ÊýÖ»ÓдøÉÏÄê·Ý¼ÆËã²Å¿É¿¿£»
2¡¢ÎÒĿǰÓõķ½·¨SELECT £¨jolianday(¡®now¡¯)-jolianday(¡®1981-12-23¡¯)£©%365
3¡¢Õâ¸ö·½·¨¿Ï¶¨ÓÐÎÊÌ⣬µ«ÊµÔÚ²»ÖªµÀÔõôʵÏÖ£»
Òò´ËÏ£Íû¸÷λÈÊÐÖ°ï°ïæ£ ......
ÎÒÏÖÔÚ¿ªÊ¼×öÒ»¸öÐÂÏîÄ¿,ÐèÒªÊÇÓÃEVC+SqliteµÄ»·¾³,µ«ÎÒûÓùýSqlite,Çë´ó¼Ò¸øµã½¨Òé,лл!!
sqlite ºÜ¼òµ¥£¬Ö±½Óµ½ËüµÄ¹ÙÍøÏÂÔØ sqlite3.exe ¾ÍÐÐÁË£¬ÆäËüʲô¶¼²»ÐèÒª¡£
È»ºó¾ÍÊÇÏÂÔØÄãÐèÒªµÄÇý¶¯¡£
µ±ÄúµÄ ......
µç»°±¾Æ¥Åä²éѯ£¬Ï£ÍûÒ»ÌõÓï¾ä¸ã¶¨
¼ÙÉèºÅÂë±¾(numtable)ÈçÏÂ:
ºÅÂë(num) ÁªÏµÈË (relationname)
10086 ÒÆ ......
visual studioÏÂÔÚwmÄ£ÄâÆ÷À³ÌÐò²Ù×÷sqlite¶¼Ê§°Ü£¬µ«ÔÚÊÖ»úÉÏûÎÊÌ⣬´ó¼ÒÆÕ±é¶¼ÊÇÕâÑùÂð£¿ËÓнâ¾ö°ì·¨£¿±Ï¾¹ÔÚÄ£ÄâÆ÷Éϵ÷ÊÔЧÂʱȽϸߡ£
¶÷£¬²»»á°¡£¬PPCµÄÄ£ÄâÆ÷ÊÇ¿ÉÒԵİ¡..
ÒýÓÃ
¶÷£¬²»»á°¡£¬PPCµÄÄ ......
ÎÒÓÃevc±àдµÄ³ÌÐò£¬½«¶Ô»°¿òÖеÄÊý¾Ý´æÈëÊý¾Ý¿â£¬µÚÒ»´Î¿ÉÒÔ´æÈ룬²»¹ýµÚ¶þ´ÎÊäÈëµÄÊý¾Ý²»ÄÜ´æÈëµ½Êý¾Ý¿âÖС£
ÏÂÃæÊÇÎҵijÌÐò
UpdateData(TRUE); // TODO: Add your control notification handler code here ......