远程连接mysql查询数据库有关问题
远程连接mysql查询数据库问题。
本地有一套php+apache+mysql,查询数据库的时候用 "select * from [表名]"完全没问题。我现在把同样的代码放到一台远程的服务器上,也是php+apache+mysql,可能版本和本地的不一样,但是页面都能打开,唯独数据库读取有问题,必须写成"select * from [数据库名].[表名]"这种形式才可以,有大神知道是为什么吗?我页面涉及查询语句挺多的,不想都给改了,能直接用源代码是最好了。
------解决方案--------------------
检查一下 mysql_select_db() 语句。
------解决方案--------------------
mysql_select_db看看呢。
------解决方案--------------------
检查是否是当前数据库里 执行select * from
------解决方案--------------------
可能数据库没有选对

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











MySQL and phpMyAdmin are powerful database management tools. 1) MySQL is used to create databases and tables, and to execute DML and SQL queries. 2) phpMyAdmin provides an intuitive interface for database management, table structure management, data operations and user permission management.

In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.

The main difference between MySQL and MariaDB is performance, functionality and license: 1. MySQL is developed by Oracle, and MariaDB is its fork. 2. MariaDB may perform better in high load environments. 3.MariaDB provides more storage engines and functions. 4.MySQL adopts a dual license, and MariaDB is completely open source. The existing infrastructure, performance requirements, functional requirements and license costs should be taken into account when choosing.

SQL is a standard language for managing relational databases, while MySQL is a database management system that uses SQL. SQL defines ways to interact with a database, including CRUD operations, while MySQL implements the SQL standard and provides additional features such as stored procedures and triggers.

Safely handle functions and regular expressions in JSON In front-end development, JavaScript is often required...

Apache remains important in today's technology ecosystem. 1) In the fields of web services and big data processing, ApacheHTTPServer, Kafka and Hadoop are still the first choice. 2) In the future, we need to pay attention to cloud nativeization, performance optimization and ecosystem simplification to maintain competitiveness.

MySQL is suitable for rapid development and small and medium-sized applications, while Oracle is suitable for large enterprises and high availability needs. 1) MySQL is open source and easy to use, suitable for web applications and small and medium-sized enterprises. 2) Oracle is powerful and suitable for large enterprises and government agencies. 3) MySQL supports a variety of storage engines, and Oracle provides rich enterprise-level functions.

NGINX and Apache each have their own advantages and disadvantages, and the choice should be based on specific needs. 1.NGINX is suitable for high concurrency scenarios because of its asynchronous non-blocking architecture. 2. Apache is suitable for low-concurrency scenarios that require complex configurations, because of its modular design.
