Oracle:更新多行同列不同值

// 下面这个函数在:[wp-includes/functions.php]中
/**
 * Whether to force SSL used for the Administration Screens.
 *
 * @since 2.6.0
 *
 * @staticvar bool $forced
 *
 * @param string|bool $force Optional. Whether to force SSL in admin screens. Default null.
 * @return bool True if forced, false if not forced.
 */
function force_ssl_admin( $force = null ) {
        static $forced = false;

        if ( !is_null( $force ) ) {
                $old_forced = $forced;
                $forced = $force;
                return $old_forced;
        }
        return false;
        //return $forced; 注释掉这一行,然上面直接添加一句 return false;即可.
}

update users_activity
            set lastupdate=(
            case
            when id=#{id} then 1
            when id!=#{id} then 0
            else 0
            end
            ) where userid=#{userid}



--  
update users_activity
            set 要更新的字段=(
            case
            when id=最新记录ID then 1
            when id!=最新记录ID then 0
            else 0
            end
            ) where userid=用户ID