Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

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

sqliteÊý¾Ý¿â¼àÊÓÎÊÌâ(´¥·¢Æ÷?)

SQL´¥·¢Æ÷¿ÉÒÔµ÷ÓÃÍⲿ³ÌÐò£¬sqlite¿ÉÒÔÂð£¿Èç¹ûÏë¼àÊÓÊý¾Ý¿âijһÕűíµÄijһÏîµÄ¸Ä±ä¸ÃÔõô×ö£¿Óô¥·¢Æ÷»¹ÊÇÆäËûʲô·½·¨£¿
Èç¹ûÑ¡ÔñÓô¥·¢Æ÷¸Ã´úÂë¸ÃÔõôд£¿Çë¸ø³ö˼·»ò´úÂ룬ÆäËû»¹ÓÐʲô·½·¨¿ÉÒÔ¼àÊÓÊý¾Ý¿â± ......

ÔõôÈÃsqliteÖ§³ÖÖÐÎÄ,Ë­½â¾öÁ˾͸øËû100·Ö

ÔõôÈÃsqliteÖ§³ÖÖÐÎÄ,Ë­½â¾öÁ˾͸øËû100·Ö
ÄѵÀSQLITE²»Ö§³ÖÖÐÎÄÂ𣿣¿£¿£¿£¿£¿£¿£¿

¶ÁÈ¡³öÀ´Ê±ÂÒÂë

ÕâÑùÊÔÊÔ
C# code:

using System.Data;
using System.Data.SQLite;
//...
using (SQLiteConnec ......

help£¡SQLiteÖвÙ×÷blobÀàÐ͵Ä×ֶεÄÎÊÌâ

ÕâÊÇÎҲ鵽µÄ×ÊÁÏ
http://www.cppprog.com/2009/0108/43.html ÒѾ­´æ½øÍ¼Æ¬ÁË£¬ÏÖÔÚ×öµ½ÕâÒ»²½ÁË£¬
¡°ÕâʱÊý¾Ý¿âµ±ÖÐÒѾ­ÓÐÁËÒ»Ìõ°üº¬BLOB×ֶεÄÊý¾Ý¡£½ÓÏÂÀ´ÎÒÃÇÒª¶ÁÈ¡ÕâÌõÊý¾Ý£º  1.  //ѡȡ¸ÃÌõ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ