10 recommended articles about connection methods

The most original string connection method: str1 + str2python new string connection syntax: str1, str2 strange string method: str1 str2% connection string: 'name:%s; sex:%s ' % (' tom', 'male') string list connection: str.join(some_list) The first method, anyone with programming experience probably knows, directly use "+" to connect two strings: >> ;> print('jim'+'green')jimgreen The second type is special. If two strings are separated by "comma", then the two strings will be connected, but there will be more strings between them. Make a space: >>> print('jim','green') jim greem The third type is also unique to python. Just put the two strings together with a blank in the middle

1. How does python output the strings you need and how to connect them

Introduction: There are many string connection methods in Python. I am writing code today. By the way, I will summarize it from the most original string connection method to string list connection. Let’s feel it:

2. Flex and .NET interoperability (1): Socket-based network connection

Introduction: Flash/Flex also supports Socket-based network connections, and the server side can be developed in any language such as C++, VB, C#, Java, etc. By listening to a network port, you can receive connections from clients developed by Flash/Flex. ActionScript 3.0 provides communication with the server through Socket connection. This is an important feature that surpasses the traditional B/S structure. This allows network communication to be connected instantly and avoids the shortcomings of stateless connections in the HTTP protocol. ActionScript 3.0 uses...

3. Some summary of SQL statement efficiency issues

Introduction: 1. The principle of SQL optimization is: Minimize the number of BLOCKs that need to be read in one operation, that is, achieve the maximum data throughput in the shortest time. Adjusting bad SQL can usually start from the following points: Check the bad SQL and consider whether there is any optimization content in its writing. Check the subquery. Consider whether the SQL subquery can be rewritten using a simple connection. Check the use of optimized indexes. Consider the database Optimizer 2. Avoid SELEC...

4. php pconnect and singleton mode connect to the database, how to connect to the database with the highest performance?

Introduction: The following three connection methods 1. Use the mysql_connect() function to create a singleton class 2. Directly use mysql_pconnect() to establish a long connection 3. Create a database connection class, instantiated When establishing a short connection, when destroying it, close it (mysql_close). Which of the above three has the highest performance in connecting to the database in what application scenario? (ps: Is it necessary for PHP to implement a connection pool)

5. Problems related to PHP database mysqli connection

Introduction: Problems related to PHP database mysqli connection. I took a look at the connection method. If it is process-oriented, it is almost the same as the mysql-connect connection method. I have a question. It is said that the connection of mysql_connect is a non-persistent connection, so you can generally omit the mysql_close(). It is said that the connection of mysqli_connect is persistent. Sexual, can I omit mysqli_close()? ? ? ------Solution--

6. oracle jdbc

Introduction: Welcome to the Oracle community Forum, interact with 2 million technical personnel>>Enter /*** @author:zhangzhengxing * @faction:Java连接Oracle * @time:2011.03.24*/ package oracle0; //How to connect to the database using JDBC_ODBC bridge connection import java.sql.*; public class TestOracle01 { pub

7. "Introduction to PHP Design Patterns" Chapter 15 Table Data Gateway Pattern

Introduction: Use dynamic recording mode to create, obtain, update (delete through expansion) each row of the database table. Dynamic logging mode is a simple way of abstracting database connections, but this simplicity is also its weakness. The dynamic record class only processes a single row, making it very inefficient in WEB applications that need to present a large amount of information, such as travel reservations

8. mysql-About webservice connection Mysql

Introduction: I am asking about the connection method, or what code to write to connect to Mysql and create webservice. Because VS2015 is different from VS2010, many on the Internet are VS2010 Yes, I don’t know how to do it in VS2015. Please solve it. Thank you for the specific steps

9. mysql-Android wants to connect to the MySQL database through web service

Introduction: I used the direct connection method before, but found that this connection could not be connected, saying that direct connection was not safe. Now I want to change it to connect through the web service interface, because I am still a newbie and don’t know how to do it. Please support me. trick!

10. Implementation of long connection using set_time_limit(0) in PHP_PHP

Introduction: Every time we When accessing PHP scripts, we only get the return results after all PHP scripts have been executed. If we need a script to run continuously, then we must use PHP long connection to achieve the purpose of operation.

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