sql查询同一字段值是否存在相同记录
SELECT *
from Ds_WasteBook
WHERE (Ds_WasteBook_Desc IN
(SELECT Ds_WasteBook_Desc
from Ds_WasteBook
GROUP BY Ds_WasteBook_Desc
HAVING (COUNT(*) > 1))) AND (Ds_WasteBook_Desc LIKE '层奖%')
ORDER BY Ds_WasteBook_Desc
相关文档：
declare @xml xml
set @xml = '<root/>'
select @xml
declare @value varchar(10)
set @value = 'val1'
set @xml.modify('insert <item value="{sql:variable("@value")}" /> into (/root)[1]')
select @xml
set @value = 'val2'
set @xml.modify('replace value of (/root/item/@value)[1] with "val2 ......
1 :普通SQL语句可以用Exec执行
例: Select * from tableName
Exec('select * from tableName')
& ......
最近在用sqlcmd工具进行数据备份，今天在换到sql2000时突然不能用。原来2000是没有这个工具的：
sql2005:
sqlcmd -S 服务器名或服务器地址 -U 用户 -P 密码 -i "引用的sql语句文件"
sql2000:可以用osql代替，功能一样
osql -S 服务器名或服务器地址 -U 用户 -P 密码 -i "引用的sql语句文件" ......
with HostDevice as (----商户主机
select TerminalID ,Deviceid hostDeviceid ,Device.ModelID,Device.SN HostSN,Device.MerchantID,Device.InstallAddress,Device.SoftVersion
from Device
join model HostM on Device.ModelID=HostM.ModelID and HostM.Category in(0,3,4,5,6,8)
--where TerminalID is not null
) ......
