9 recommended articles about format analysis

Binlog must be familiar to everyone. It is used in master-slave replication or data recovery in some cases. Since binlog is binary data, you generally need to use the mysqlbinlog tool to view it. This note analyzes the binlog format, hoping to understand what is done behind the mysqlbinlog tool. 1. When to write binlog Before explaining when to write binlog, let’s briefly introduce the purpose of binlog. Binlog is a binary log file, used to record MySQL data updates or potential updates (for example, the DELETE statement executes deletion but there is actually no data that meets the conditions). It is the binlog that is relied on in MySQL master-slave replication. To enable binlog in mysql, you need to set the log_bin parameter in my.cnf. In addition, you can also specify the database to record binlog through binlog_do_db and binlog_ignore_db to specify the database not to record binlog. To enable binlog for running mysql, you can set it with the command SET SQL_LOG_BIN=1.

1. What is MySQL binlog? Analysis of the purpose and format of MySQL binlog

# Introduction: Binlog must be familiar to everyone, in master-slave replication Or it may be used for data recovery in some cases. Since binlog is binary data, you generally need to use the mysqlbinlog tool to view it. This note analyzes the binlog format, hoping to understand what is done behind the mysqlbinlog tool. 1. When to write binlog Before explaining when to write binlog, let’s briefly introduce the purpose of binlog. Binlog is a binary log file, used to record mysql data updates or potential updates...

2. Four ways to obtain RSS source xml files

Introduction: I have been reading RSS-related content recently and want to use Java to implement an RSS subscription function. The code is relatively simple. , you only need to read the channel xml and use other formats to parse it. But note that the encoding format needs to be specified, otherwise the code will be garbled. {Code...}

3. Json format parsing

Introduction: The format of the json structure is a collection of several key/value (key, value) pairs. This collection can be understood as a dictionary (Dictionary), and each key/value pair can be understood as an object (Object ). The key in a key/value pair is generally a string, and the value can be a basic type such as string, double, or int. It can also be a nested key/value pair, or it can be an array or the data in the array. The type can be a basic type, or a key/value pair. It can be seen that key/value is nothing originally, but it will be confusing if it is nested too much. Let's give a specific example to illustrate. Note: This code is only used to illustrate

4. sscanf definition, usage and analysis_PHP tutorial

Introduction : sscanf definition, usage and analysis. sscanf definition, usage and analysis The sscanf() function parses input from a string according to the specified format. If only two parameters are passed to this function, the data will be returned in the form of an array

5. javascript - Problems with non-standard json format parsing

Introduction: 1. This format is returned. PHP’s json_decode(); cannot parse it directly. Do we need to cut the string into JSON format and use json_decode(); to parse it? This is the standard json format. 2. This is very close to the json format, but it still cannot be parsed. Do you have any good methods?

6. Python parses the url format Method

#Introduction: This article mainly introduces Python's method of parsing URL format, involving Python's related skills for URL parsing. Friends in need can refer to it

7. javascript - jquery data format analysis

Introduction: Passed: About data statistics methods, jQuery, urgent online, etc. After obtaining a set of data, after console.log, the output format is as follows][2] {code...} Question: How should I use jquery to parse this data structure and output the content at the specified location... Try: I tried adding [...

8. sscanf definition, usage and analysis

Introduction: sscanf definition, usage and analysis: The sscanf() function parses input from a string according to the specified format. If only two parameters are passed to this function, the data will be returned in the form of an array, otherwise, if additional parameters are passed, Then the parsed data will be stored...

9. Javascript date object Date extension method_time date

Introduction: Date object extension, including common Chinese date format analysis, addition and subtraction operations, date difference, weekly operations and quarterly operations.

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