在oracle中如何把前台传过来的日期字符串转换成正确格式

insert into
        ibill_sys_version(versionId,productCode,versionCode,versionDesc,versionUrl,
        upgradeWay,upgradeTime,createUserId,createUser,createDate,status)
        VALUES(#{versionId},#{productCode},#{versionCode},#{versionDesc},#{versionUrl},
        #{upgradeWay},to_date(#{upgradeTime},insert into
        ibill_sys_version(versi