用sql脚本安全添加字段_MySQL
bitsCN.com
用sql脚本安全添加字段
CREATE PROCEDURE safe_add_col(tname VARCHAR(50),cname VARCHAR(50))
BEGIN
SET @a = '';
SELECT column_name into @a
FROM information_schema.columns
WHERE table_name = tname AND column_name = cname;
IF @a = '' THEN
alter table tbl_application_source_down add import_batch VARCHAR(14) DEFAULT '' NOT NULL;
END IF;
END;
call safe_add_col('user','real_name');
DROP PROCEDURE IF EXISTS safe_add_col;
bitsCN.com
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
1664
14
1423
52
1318
25
1269
29
1248
24
Implementing Machine Learning Algorithms in C++: Security Considerations and Best Practices
Jun 01, 2024 am 09:26 AM
When implementing machine learning algorithms in C++, security considerations are critical, including data privacy, model tampering, and input validation. Best practices include adopting secure libraries, minimizing permissions, using sandboxes, and continuous monitoring. The practical case demonstrates the use of the Botan library to encrypt and decrypt the CNN model to ensure safe training and prediction.
Security configuration and hardening of Struts 2 framework
May 31, 2024 pm 10:53 PM
To protect your Struts2 application, you can use the following security configurations: Disable unused features Enable content type checking Validate input Enable security tokens Prevent CSRF attacks Use RBAC to restrict role-based access
PHP Microframework: Security Discussion of Slim and Phalcon
Jun 04, 2024 am 09:28 AM
In the security comparison between Slim and Phalcon in PHP micro-frameworks, Phalcon has built-in security features such as CSRF and XSS protection, form validation, etc., while Slim lacks out-of-the-box security features and requires manual implementation of security measures. For security-critical applications, Phalcon offers more comprehensive protection and is the better choice.
How to enhance the security of Spring Boot framework
Jun 01, 2024 am 09:29 AM
How to Enhance the Security of SpringBoot Framework It is crucial to enhance the security of SpringBoot applications to protect user data and prevent attacks. The following are several key steps to enhance SpringBoot security: 1. Enable HTTPS Use HTTPS to establish a secure connection between the server and the client to prevent information from being eavesdropped or tampered with. In SpringBoot, HTTPS can be enabled by configuring the following in application.properties: server.ssl.key-store=path/to/keystore.jksserver.ssl.k
How should the Java framework security architecture design be balanced with business needs?
Jun 04, 2024 pm 02:53 PM
Java framework design enables security by balancing security needs with business needs: identifying key business needs and prioritizing relevant security requirements. Develop flexible security strategies, respond to threats in layers, and make regular adjustments. Consider architectural flexibility, support business evolution, and abstract security functions. Prioritize efficiency and availability, optimize security measures, and improve visibility.
Which wallet is safer for SHIB coins? (Must read for newbies)
Jun 05, 2024 pm 01:30 PM
SHIB coin is no longer unfamiliar to investors. It is a conceptual token of the same type as Dogecoin. With the development of the market, SHIB’s current market value has ranked 12th. It can be seen that the SHIB market is hot and attracts countless investments. investors participate in investment. In the past, there have been frequent transactions and wallet security incidents in the market. Many investors have been worried about the storage problem of SHIB. They wonder which wallet is safer for SHIB coins at the moment? According to market data analysis, the relatively safe wallets are mainly OKXWeb3Wallet, imToken, and MetaMask wallets, which will be relatively safe. Next, the editor will talk about them in detail. Which wallet is safer for SHIB coins? At present, SHIB coins are placed on OKXWe
How to implement PHP security best practices
May 05, 2024 am 10:51 AM
How to Implement PHP Security Best Practices PHP is one of the most popular backend web programming languages used for creating dynamic and interactive websites. However, PHP code can be vulnerable to various security vulnerabilities. Implementing security best practices is critical to protecting your web applications from these threats. Input validation Input validation is a critical first step in validating user input and preventing malicious input such as SQL injection. PHP provides a variety of input validation functions, such as filter_var() and preg_match(). Example: $username=filter_var($_POST['username'],FILTER_SANIT
How to interact with JSON data using SQL in Golang?
Jun 03, 2024 am 11:47 AM
There are the following steps for interacting with JSON data through SQL in Golang: Use the json.Unmarshal function to parse JSON data into a Go structure and convert JSON to a structure. Use the database/sql package to access and operate SQL databases and perform operations such as inserts and queries. Combining the above steps, you can build an application based on SQL and JSON in Go to implement functions such as user registration and login.
