SqlServer ʵÏÖÈÕÆÚ²»Í¬¸ñʽµÄת»»£¡£¡
select
convert(char(4),auth,120)+'Äê'+
substring(convert(char(10),auth,120),6,2)+'ÔÂ'+
substring(convert(char(10),auth,120),9,2)+'ÈÕ',
convert(char(4),appr,120)+'Äê'+
substring(convert(char(10),appr,120),6,2)+'ÔÂ'+
substring(convert(char(10),appr,120),9,2)+'ÈÕ'
from a
ÒÔÉÏ´úÂëʵÏֵŦÄÜÊǰÑÈÕÆÚ2008-10-10ת»»2008Äê10ÔÂ10ÈÕ
Ïà¹ØÎĵµ£º
mysql ´ó¶ÔÏó´æÈ¡:
ÀàÐÍÒ»°ãÓ¦¸ÃÓÃmediumblod,
blobÖ»ÄÜ´æ2µÄ16´Î·½¸öbyte,
mediumblodÊÇ24´Î·½,
Ò»°ãÀ´Ëµ¹»ÓÃÁË.longblobÊÇ32´Î·½ÓÐЩ´ó.
MYSQLĬÈÏÅäÖÃÖ»ÄÜ´æ1M´óСµÄÎļþ,ÒªÐÞ¸ÄÅäÖÃ,WIN°æ±¾µÄÔÚmysql.iniÎļþÖÐ
ÐÞ¸Ämax_allowed_packet,net_buffer_lengthµÈ¼¸¸ö²ÎÊý,»òÖ±½ÓSET GLOBAL varName=value.
linux°æ± ......
ÏÂÃæÊÇÎÒÔÚSQLServerÖÐÓõıȽ϶àµÄº¯Êý£¬Ä㻹ÓÃЩʲôº¯Êý£¿»òÕß¶ÔÄĸöº¯ÊýÓбȽϺÃÓ÷¨£¿»òÕßÄã²»ÓÃÄÄЩº¯Êý£¿
LEFT ( character_expression , integer_expression )
·µ»Ø´Ó×Ö·û´®×ó±ß¿ªÊ¼Ö¸¶¨¸öÊýµÄ×Ö·û¡£
Àý:
select left('my name is viwo',4)
my n
RIGHT ( character_expression , integer_expression )
·µ» ......
ÀýÈç´´½¨Ò»¸ö±í
create table stz
(
&n ......
ÎÒÃÇ×ÜÊǰÑSQL Server Õâ¸öµ¥´Ê¹ÒÔÚ×ì±ß£¬Ò²ÐíºÜÉÙÓÐÈË˼¿¼¹ý SQL Server µ½µ×ÊÇʲô¶«Î÷¡£Õâ¸öÎÊÌâºÜÄÑÓü¸¾ä»°½²Çå³þ¡£ÎÒÃÇÖ®ËùÒÔÒªÓÃÁ¬Ôصķ½Ê½ÌÖÂÛ SQL Server£¬¾ÍÊÇÒª´Ó²»Í¬µÄ½Ç¶È²ûÊöÕâ¸öÎÊÌâ¡£
¡¡¡¡Ò»¡¢·þÎñÆ÷×é¼þ
¡¡¡¡SQL Server 2000ÓÉÁ½¸ö²¿·Ö×é³É£º·þÎñÆ÷×é¼þºÍ¿Í»§¶Ë¹¤¾ß¡£
¡¡¡¡1.ÄÚÈÝ
¡¡¡¡SQL ServerµÄ·þ ......
SQLÓï¾äÈçÏÂ:
CREATE TABLE [dbo].[test_table] (
[ID] [int] IDENTITY (1, 1) NOT NULL ,
[NAME] [varchar] (80)
)
Éè¼ÆÊÓͼÏÂ,ÔÚÌí¼ÓÒ»¸öINTÐ͵Ä×Ö¶ÎÊÇ,Ñ¡ÖÐÏ·½µÄ"±êʶ"Ϊ"ÊÇ",ÏÂÃæÓÐ"±êʶÖÖ×Ó"ºÍ"±êʶ×ÔÔöÁ¿",¿ÉÒÔ×Ô¼ºÉèÖÃ,ĬÈ϶¼Îª1
µ«ÊDz»ÖªµÀΪʲô,ʹÓÃÈÎÎ ......