`class_code` '门类编码', `class_name` '门类名称', `specialty_class_code` '专业类编码', `specialty_class_name` '专业类名称', `specialty_type` '专业类型 1、基本专业 2、特殊专业', `specialty_code` '专业编码', `specialty_name` '专业名称', `degree` '授予学位门类', `learn_year` '修业年限', `create_year` '增设年份',

`country_name` '国家名称' `currency_name` '货币名称' `currency_code` '货币单位简码' `currency_number` '货币代码'

`country_code_2` '国家id', `name` '朝代名称', `create_time` '建国时间时间戳', `create_time_str` '创建时间', `end_time` '结束时间时间戳', `end_time_str` '结束时间', `creator_id` '建立者id', `creator_name` '建立者名称', `capital` '都城', `status` '有效状态 0 正常 1 删除',

Hive中文件存储格式对比实验测试数据

基于STM32的有限词条语音识别与对话模块－词条识别格式

解释了TIFF图像和GeoTIFF的区别。

mongodb 3.2 以上 windows 管理工具 MongoCola2.1.0 支持 wiredTiger 存储格式

MATLAB是工程计算中应用非常广泛的一种软件,熟练掌握MATLAB是大部分工科类学生所必备的技能。通过对MATLAB教材中习题的解答,分析了cast和typecast两个函数,介绍了大端和小端两种字节序类型,以及整数及浮点数在计算机中的存储格式。由此,可以使学生学会使用MATLAB函数,并了解数据在计算机中存储格式。

队列的链式存储样本格式

Relational database systems have traditionally optimized for I/O performance and organized records sequentially on disk pages using the N-ary Storage Model (NSM) (a.k.a., slotted pages). Recent research, however, indicates that cache utilization and performance is becoming increasingly important on modern platforms. In this paper, we first demonstrate that in-page data placement is the key to high cache performance and that NSM exhibits low cache utilization on modern platforms. Next, we propose a new data organization model called PAX (Partition Attributes Across), that significantly improves cache performance by grouping together all values of each attribute within each page. Because PAX only affects layout inside the pages, it incurs no storage penalty and does not affect I/O behavior. According to our experimental results (which were obtained without using any indices on the participating relations), when compared to NSM (a) PAX exhibits superior cache and memory bandwidth utilization, saving at least 75% of NSM’s stall time due to data cache accesses, (b) range selection queries and updates on memory-resident relations execute 17-25% faster, and (c) TPC-H queries involving I/O execute 11-48% faster. Finally, we show that PAX performs well across different memory system designs.