ÇóÒ»¸ösql Óï¾ä
Ö÷±ít1
id name
1 ÕÅÈý
2 ÀîËÄ
±ís1
idºÅ tid ±íʾÖ÷±í¶ÔÓ¦µÄidºÅ value1´û¿î1 value2 Óà¶î´û¿î2
id tid value1 value2
1 1 20 10
2 2 10 5
±ís2
idºÅ tid ±íʾÖ÷±í¶ÔÓ¦µÄidºÅ value1´æ¿î
id tid value1
1 1 30
2 2 2
±ís3
idºÅ tid ±íʾÖ÷±í¶ÔÓ¦µÄidºÅ value1¹ÉƱ
id tid value1
1 1 20
2 2 10
==========
Çó2¸ösql
1\ ÇóËùÓдû¿îºÍÓà¶îÖ®²îÔÚ1-30Ö®¼äµÄËùÓпͻ§
2\ Çó¹ÉƱ+´æ¿î-´û¿î1Ö®ºÍÔÚ1-30Ö®¼äËùÓеĿͻ§
ÏÈjoin È»ºóÓÃbetween and ÅжÏ
SQL code:
select
a.name
from
t1 a,s1 b,s2 b,s3 c
where
a.id=b.tid
and
a.id=c.tid
and
a.id=d.tid
having
sum(a.value1)-sum(a.value2) between 1 and 30
SQL code:
create table t1(id int, name varchar(10))
insert into t1 values(1 , 'ÕÅÈý')
insert into t1 values(2 , 'ÀîËÄ')
c
Ïà¹ØÎÊ´ð£º
ÎÒÓжà¸ö±íA B C ½á¹¹ÊÇÒ»ÑùµÄ£¬¶¼ÓÐ2¸ö×Ö¶ÎnameºÍcontent,ÎÒÒªËÑË÷ËùÒÔ±íËùÓÐ×Ö¶ÎÖаüº¬¡°Öйú¡±µÄÄÚÈÝ Õâ¸öSQLÓï¾äÔõôд
ÈçºÎ½«¶à¸ö±íµÄ²éѯ½á¹ûÁ¬³ÉÒ»¸ö±í Õâ¸öSQLÓï¾äÔõôд ±íµÄ½á¹¹ÊÇÒ»ÑùµÄ
ÀýÈç£ ......
select convert(varchar(50),cast(convert(numeric(18,2),1275674000000/100000000)as real))+'ÒÚ'
select cast(convert(numeric(18,2),1275674000000/100000000)as real)
ΪʲôÉÏÒ»¸öÓÃvarcharת»»ºó¾ÍÖ»±£ÁôÁËÒ ......
sqlÎÒÏëµÃµ½Ò»×Ö·û´®Îª:
sldkf|||sdeww
erkv|||rltdk
jemcl|||ligf
¾ÍÊÇ|||ºóÃæµÄ×Ö·ûÓÐʲôº¯ÊýÄܵõ½Âð£¿ÊÇÔÚsqlÓï¾äдµÄ£¬²»ÊÇÔÚÒ³ÃæÐ´µÄ£¬ÄÇλ¸ßÊÖÀ´Ö¸½ÌÏ£¬ÐÂÊÖ£¬Ð»Ð»
ÔνñÌì²»ÊÇдÁËô
select parsen ......
Id Name Flag
1 ÕÅÈý 1
2 ÍõÎå 3
3 ÕÅÈý 1
4 ÀîËÄ 2
5 ÕÅÈý 1
6 ÀîËÄ 2
ÎÒÏëÊä³öµÄʱºò±ä³ÉÕâÑù
Id Name Flag
1 ÕÅÈý 1 & ......
CREATE PROCEDURE [selectvipcompany]
@username varchar(50),
@companyname varchar(50),
@endtime varchar(1)
AS
declare @sql varchar(1000)
set @sql=''
if (@username<>null and @username ......