存储过程中SQL语句字符串如下：
'select bettime,case when g.type=1 then
"DDTC" end "订单类型",checknumber,multitimes*betmoney "订单金额",g.poscode,issue,number,p.ceganame,checksn,multitimes
from lot_wagertick as t inner join lot_wagersn as k on t.wtid=k.wtid
inner join lot_play as p on k.plid=p.plid
inner join lot_game as g on t.gaid=g.gaid
where bettime=(select max(bettime) from lot_wagertick
where stid in
(select stid from sta_pos_change
where ppid = (select ppid from pos_pos where imei=' @imei ') ) )
and t.type=1 and g.type=1 and g.status=1'
执行上述存储过程时exec [dbo].[interface_querylastlottery_condition] 245764254会报错：
新闻207，级别16，状态1，第1 行
列名'DDTC' 无效。
原因：case when g.type=1 then "DDTC" end "订单类型"
没有对DDTC引号用转义符转换，并转换DDTC外部双引号换成单引号，其他地方双引号不变，即