Directory 1 question 2 implementation 1 Question The springboot project needs to implement encryption and decryption of users After the user logs in, the user information is encrypted and stored in a cookie. When the page is accessed later, the cookie is carried to other pages and then decrypted. As long as the cookie expires, […]
Tag: equivalent
ORACLE inner join (inner join), outer join (outer join), natural join (nature join), equivalent join, subquery, correlated subquery
Table of Contents ORACLE connection Inner join is equivalent to equijoin inner join Equijoin outer join left outer join Fully connected cross connect natural connection ORACLE subquery non-correlated subquery Correlated subquery scalar subquery ORACLE connection Take USER_1 and USER_2 as an example Inner join is equivalent to equijoin 1. The effects of inner joins and […]
ACWing486. Equivalent expression
Title address: https://www.acwing.com/problem/content/description/488/ After obviously entering middle school, I learned algebraic expressions. One day, he encountered a very troublesome multiple-choice question. The stem of this question first gives an algebraic expression, and then lists a number of options. Each option is also an algebraic expression. The requirement of the question is to determine which algebraic […]
[C++ Implementation] Compilation Principle Convert NFA to equivalent DFA
Experiment name Convert any given NFA to a DFA Requirements NFA converted to equivalent DFA 1. Experimental purpose 1. Master the differences and connections between NFA and DFA; 2. Learn to use the subset construction method to convert NFA into the corresponding DFA. 2. Experimental environment It is recommended to use Visual C++ 6.0; Windows […]
In 2023, there will be no testers who think that Jmeter is equivalent to performance testing!
With the rapid development of the software industry, modern software systems are becoming more and more complex and have more and more functions. In addition to ensuring the quality of basic functional testing, testers are also paying more and more attention to performance. But when it comes to performance testing, many people directly think of […]
The method of equivalently converting separable convolution (Separable Convolution) to traditional convolution (Ordinary convolution) (equivalent conversion, that is, the final processing effect is the same)…
Write in front: The reason why separable convolution was proposed The status of convolutional neural networks in image processing is beyond doubt. Convolution operation has powerful feature extraction capabilities and consumes fewer parameters than full connection. It has inherent advantages when applied to two-dimensional structured data such as images. However, limited by the current hardware […]
Equivalent time sampling principle and implementation based on FPGA
Follow and star the public account, and exciting content will be delivered every day Source: Internet material In the fields of modern electronic measurement, communication systems, and biomedicine, data acquisition and storage of broadband analog signals are often involved for further data processing by computers. In order to collect high-speed analog signals without distortion, according […]
Delta Lake: High-Performance ACID Table Storage over Cloud Object St is equivalent to using generic functions to save type information ores
1. What is the PhysicsRaycaster component? PhysicsRaycaster is a component in Unity UGUI that is used for physical ray detection on UI elements. It can detect whether a mouse or touch event occurs on a UI element and pass the event to the corresponding UI element. 2. The working principle of PhysicsRaycaster PhysicsRaycaster detects UI […]
[High Concurrency] SimpleDateF is equivalent to using a generic function to save type information. Why is the ORMAT class not thread-safe?
SUM function In MySQL, the SUM function is an aggregate function used to calculate the sum of numeric columns. It accepts a numeric column as argument and returns the sum of all values in the column. Here is an example using the SUM function: Suppose we have a table named “orders” with two fields: “product” […]
How to find the solidity and equivalent diameter of an object in an image using OpenCV Python?
The solidity of an object is calculated from the ratio of the silhouette area to its convex hull area. Therefore, to calculate solidity, one must first find the contour area and convex hull area. The contour area of an object can be found using the cv2.contourArea() function. The equivalent diameter is the diameter of a […]