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Mysql string processing function detailed introduction, summary _mysql

First, concise summaryASCII value of ASCII (char) return characterBit_length (str) returns the bit length of the stringCONCAT (S1,S2...,SN) connects S1,s2...,sn to a stringConcat_ws (SEP,S1,S2...,SN) connects the S1,S2...,SN to a string and uses the

Mysql string processing functions

Mysql string processing functions ASCII (char) returns the ASCII value of a character BIT_LENGTH (str) returns the bit length of the string. CONCAT (s1, s2 ..., Sn) replace s1, s2 ..., Connect the sn to a string CONCAT_WS (sep, s1, s2 ..., Sn)

Mysql string processing functions

I. Concise summaryASCII (char) returns the ASCII value of a characterBIT_LENGTH (str) returns the bit length of the string.CONCAT (s1, s2 ..., Sn) replace s1, s2 ..., Connect the sn to a stringCONCAT_WS (sep, s1, s2 ..., Sn) replace s1, s2 ...,

Java instant online chat (1)

Java instant online chat (1)   Today, I imitated the video of Jack Ma's instructor and made an instant online chat. At this time, I will share it with you. It is not very good. Please join us. import java.awt.Frame;public class ChatClient extends

JSP project to close the browser after the puppet, as long as do not close the operation also remain online

js| Browser | project | Online recently a project with JSP to implement user login, of course, using the session to maintain. This is done using the implements Httpsessionbindinglistener interface, which is the brief code I wrote. public class

Urgent !! Incomplete php page loading, online, etc.

Urgent !! Incomplete loading of php pages, online and other PHP RT: refresh the same page multiple times. sometimes it is normal, sometimes it is only half displayed, and sometimes it is completely blank. Complete page Half This problem was

In the jsp project, the browser is closed, and the browser remains online as long as the browser is not closed.

In a recent project, jsp (the preferred choice for SUN Enterprise Applications) is used to achieve user logon, and session persistence is of course used. This is implemented using the implements HttpSessionBindingListener interface. This is the

PHP implementation get the first letter of Chinese characters two examples _php tutorial

To get the first letter of the method there are many, this we generally want to divide the Chinese characters and then converted to pinyin, and then use SUBSTR to take the first letter, below I found online two instances, different people together

PHP get the first letter function _php Tutorial

Online methods have many, are the same principle, in accordance with the requirements, did a version of the class file, the main function is: clear function, easy to modify maintenance and expansion; English strings: return (including numbers);

Python Run code Helper online

The Python Code run helper allows you to enter Python code online and execute the code from a Python script run natively. The principle is as follows: Enter the code on the Web page: Click the Run button and the code is sent to the running

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