去年无聊的时候想到想玩一下根据ASCII表的排列顺序将字符串内的数值往前或者后移N个位,顺便看一下是T-SQL性能好还是用C#写CLR函数处理得快.结果是在50万行以下其实两者差距很小,当然这是在我的笔记本上测试的结果(I5双核四线程+8G内存+5600转的机械硬盘).在100万行以上的时候用T-SQL基于集合的方式就体现出优势了,用了大概1分多钟就处理完100万行,而CLR用了4分多钟还没处理完.这里贴上当时的T-SQL代码. if OBJECT_ID('tempdb..#tt') is no…
Ascii vs. Binary Files Introduction Most people classify files in two categories: binary files and ASCII (text) files. You've actually worked with both. Any program you write (C/C++/Perl/HTML) is almost surely an ASCII file. An ASCII file is defined…
Binary to Text (ASCII) Conversion Description: Write a function that takes in a binary string and returns the equivalent decoded text (the text is ASCII encoded). Each 8 bits on the binary string represent 1 character on the ASCII table. Note: In the…
Macron symbol ASCII CODE 238 : HTML entity : [ Home ][ español ] What is my IP address ? your public IP address is: 118.163.184.243 ASCII control characters 00NULL(Null character) 01SOH(Start of Header) 02STX(Start of Text) 03ETX(End of Text) 04EOT(E…