There are four ways to adjust the WordPress article list: use theme options, use plugins (such as Post Types Order, WP Post List, Boxy Stuff), use code (add settings in the functions.php file), or modify the WordPress database directly.

ABI compatibility in C refers to whether binary code generated by different compilers or versions can be compatible without recompilation. 1. Function calling conventions, 2. Name modification, 3. Virtual function table layout, 4. Structure and class layout are the main aspects involved.

When developing a project that requires parsing SQL statements, I encountered a tricky problem: how to efficiently parse MySQL's SQL statements and extract the key information. After trying many methods, I found that the greenlion/php-sql-parser library can perfectly solve my needs.

In MySQL, add fields using ALTERTABLEtable_nameADDCOLUMNnew_columnVARCHAR(255)AFTERexisting_column, delete fields using ALTERTABLEtable_nameDROPCOLUMNcolumn_to_drop. When adding fields, you need to specify a location to optimize query performance and data structure; before deleting fields, you need to confirm that the operation is irreversible; modifying table structure using online DDL, backup data, test environment, and low-load time periods is performance optimization and best practice.

The ranking of virtual currencies’ “oldest” is as follows: 1. Bitcoin (BTC), issued on January 3, 2009, is the first decentralized digital currency. 2. Litecoin (LTC), released on October 7, 2011, is known as the "lightweight version of Bitcoin". 3. Ripple (XRP), issued in 2011, is designed for cross-border payments. 4. Dogecoin (DOGE), issued on December 6, 2013, is a "meme coin" based on the Litecoin code. 5. Ethereum (ETH), released on July 30, 2015, is the first platform to support smart contracts. 6. Tether (USDT), issued in 2014, is the first stablecoin to be anchored to the US dollar 1:1. 7. ADA,

JDBC...

Detailed explanation of PostgreSQL database resource monitoring scheme under CentOS system This article introduces a variety of methods to monitor PostgreSQL database resources on CentOS system, helping you to discover and solve potential performance problems in a timely manner. 1. Use PostgreSQL built-in tools and views PostgreSQL comes with rich tools and views, which can be directly used for performance and status monitoring: pg_stat_activity: View the currently active connection and query information. pg_stat_statements: Collect SQL statement statistics and analyze query performance bottlenecks. pg_stat_database: provides database-level statistics, such as transaction count, cache hit

MySQL is an open source relational database management system, mainly used to store, organize and retrieve data. Its main application scenarios include: 1. Web applications, such as blog systems, CMS and e-commerce platforms; 2. Data analysis and report generation; 3. Enterprise-level applications, such as CRM and ERP systems; 4. Embedded systems and Internet of Things devices.