Course Intermediate  6767

Course Introduction：Postman is an extensible API development and testing collaboration platform tool that can be quickly integrated into CI/CD pipelines. Designed to simplify API workflows in testing and development. Postman has the advantages of simplicity and ease of use, using collections, multi-person collaboration, creating environments, creating tests, automated testing, debugging, and continuous integration.

Course Elementary  48327

Course Introduction：A time query calendar made by native PHP (with lunisolar time conversion function)

Course Intermediate  11422

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Course Advanced  17716

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Course Introduction：MySQL is currently a widely used open source relational database. It supports a variety of data types, including integers, strings, date and time, etc. In practical applications, we often need to convert different data types to meet various needs. This article will share the data type conversion methods in MySQL, including implicit conversion and explicit conversion. 1. Implicit conversion Most data types in MySQL can be implicitly converted, that is, they are automatically converted to the appropriate type during operation. Let's demonstrate it through an example: convert date type number

2023-06-15 comment 0  11673

Course Introduction：MySQL type and PHP variable type conversion MySQL is a commonly used relational database management system and is commonly used in web development, while PHP is a scripting language widely used in web development. Among them, the data types of MySQL and PHP sometimes need to be converted for data manipulation and display. In this article, we will explore the methods and considerations of MySQL type and PHP variable type conversion. MySQL typeMySQL supports multiple data types, including integer types, decimal types, date and time types, and characters

2023-04-21 comment 0  587

Course Introduction：MySQL is a popular relational database management system that can handle a variety of data types. When we create a table in MySQL, we often need to specify the data type for each column. In some cases, we need to convert some kind of data to other types, such as character type to numeric type and vice versa. In this article, we will explore the methods of character type conversion in MySQL. ## Data types In MySQL, common character types include VARCHAR, CHAR and TEXT. VARCHAR is a variable length character

2023-04-18 comment 0  2434

Course Introduction：MySQL is a widely used relational database management system that supports a variety of data types. Among them, the string type is a very common one. In daily database operations, it is sometimes necessary to convert string types. This article will introduce the commonly used string type conversion operations in MySQL. 1. CAST and CONVERT functions The CAST and CONVERT functions can convert one data type into another data type. Their syntax is very similar, but some details differ. For example: CAST(exp

2023-05-20 comment 0  1152

Course Introduction：Golang is a high-performance, simple, safe and easy-to-learn programming language. In Golang, type conversion is the process of converting one data type to another data type. In this article, we will explore type conversion in Golang, including basic type conversion, custom type conversion, and interface conversion. Basic type conversion in Golang, basic types include int, float, bool, string, etc. When we need to convert one of the types to another type, we can use cast to convert

2023-05-19 comment 0  627