Course 7440
Course Introduction:Many programmers who have worked for many years still have a very basic understanding of databases. They are confused as soon as they go out for interviews. They don’t understand basic SQL statements, more complex SQL queries, and SQL statement optimization. They don’t even know how to use them. Redis improves system performance and can withstand tens of millions of concurrencies. This set of courses will help you thoroughly understand MySQL locks, execution plans, indexes, MVCC & Redis transactions, cache, breakdown, penetration, avalanche, warm-up, etc., and you can complete all database interviews in one set!
Course 2857
Course Introduction:Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.
Course 1795
Course Introduction:Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn
Course 5521
Course Introduction:(Consult WeChat: phpcn01) The comprehensive practical course aims to consolidate the learning results of the first two stages, achieve flexible application of front-end and PHP core knowledge points, complete your own projects through practical training, and provide guidance on online implementation. Comprehensive practical key practical courses include: social e-commerce system backend development, product management, payment/order management, customer management, distribution/coupon system design, the entire WeChat/Alipay payment process, Alibaba Cloud/Pagoda operation and maintenance, and project online operation. .....
Course 5172
Course Introduction:(Consult WeChat: phpcn01) Starting from scratch, you can solve conventional business logic, operate MySQL with PHP to add, delete, modify, and query, display dynamic website data, master the MVC framework, master the basics of the ThinkPHP6 framework, and learn and flexibly master all knowledge involved in PHP development. point.
2023-11-14 12:58:58 0 1 292
Get column names and data for CSV export (MYSQL) using PHP
2023-11-04 21:59:58 0 2 279
Connect phpMyAdmin to MySQL server via SSL
2023-10-23 08:57:18 0 2 308
Retrieve query results as dict in SQLAlchemy
2023-10-20 13:59:52 0 2 382
2023-10-10 09:34:48 0 2 293
Course Introduction:Oracle 数据库还原涉及从备份或恢复日志中重建损坏或丢失的数据库,包括准备还原、恢复数据文件、打开数据库、应用恢复日志、恢复数据字典、重建索引等步骤。其中,使用 Recovery Manager (RMAN) 可自动化此过程。
2024-06-12 comment 0 232
Course Introduction:Oracle数据库备份可通过RMAN备份、导出/导入实用程序、逻辑备份(Flashback)实现。还原则根据备份类型而异,包括:RMAN备份还原、导出/导入导出还原、逻辑备份(Flashback)还原,具体还原过程涉及启动RMAN连接数据库、使用RESTORE/RECOVER命令还原备份集,导出/导入文件,重建物和权限,使用Flashback命令恢复到特定时间点等步骤。
2024-06-12 comment 0 761
Course Introduction:Deleted data in Oracle can be restored by following these steps: Confirm that the data exists in the Recycle Bin. Verify that you have UNRECOVER TABLE permission. Use the UNRECOVER TABLE statement to restore the data. Optional: Use SCN to specify the specific data version to restore. Execute COMMIT to make it permanent.
2024-04-18 comment 0 585
Course Introduction:This article brings you relevant knowledge about Oracle, which mainly introduces issues related to database backup and restoration. The backup and recovery in Oracle are divided into: logical backup and physical backup. Physical backup is divided into two categories: cold backup and hot backup. Let's take a look at them together. I hope it will be helpful to everyone.
2022-07-12 comment 0 4870
Course Introduction:In the process of using Oracle database, we often encounter various error reports, some of which will directly cause the database to become unusable and affect the normal progress of business. This article will focus on Oracle database error reporting, discuss the causes of error reporting and common solutions, to help readers better understand and solve Oracle database error reporting problems. 1. Reasons for Oracle database errors When using Oracle database, various error situations may occur due to various reasons, such as errors during installation and execution of SQL statements.
2023-05-18 comment 0 902