在任务中心里执行CALL "GGDBUSER"."WYDETAIL"(substr(char(current date -1 day),7,4)||substr(char(current date -1 day),1,2)||substr(char(current date -1 day),4,2)) 时间参数格式类似为20111013，而想把时间参数修改为2011－10－12，把时间参数写成substr(char(current date -1 day),7,4)||'-'|substr(char(current date -1 day),1,2)||'-'|substr(char(current date -1 day),4,2)) 得到的时间格式却为12/11/2011 请牛人解决 不胜感激！
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