Course Intermediate 10702
Course Introduction:MySQL course ceiling: explanation of 6 major paradigms, 7 major log analysis, 7 major SQL performance analysis tools, 9 major storage engine analysis, 10 major categories and 30 sub-categories of optimization scenarios, 15 application explanations of different locks, 18 rules for creating indexes , 300+ high-definition and uncensored technical analysis pictures...
Course Elementary 20223
Course Introduction:1. HTML5: a new generation of structured markup language, the latest international standard from W3C; 2. CSS5: The latest collection of style rules, in line with modern page layout standards; 3. ES6: The latest specification of JavaScript (based on the latest ECMAScript standard); 4. NPM: The latest standard front-end package management tool based on Node.js; 5. VUE: The world’s most popular universal front-end development framework (essential for front-end development)
Course Intermediate 6778
Course Introduction:How to tune SQL according to execution plan under massive data? How does the mysql index system cope with massive data storage? How to design a mysql index with excellent performance under massive data Full analysis of clustered index and non-clustered index of mysql Must-ask nouns in mysql index interview: table return, index coverage, leftmost matching How to optimize indexes for specific SQL scenarios
Course Intermediate 491786
Course Introduction:Can I learn PHP programming in 60 days? After reading the teaching plan of PHP Chinese website, you will no longer doubt it! The compact course arrangement, novel teaching model, and full learning supervision ensure that every bit of your progress will be rewarded with surprises~~
PHP calculates the maximum and minimum values of an array Dashenjin
2017-05-18 10:46:03 0 6 789
2017-05-02 09:23:23 0 1 845
Course Introduction:Maximum value of float: 1. In C language, the maximum value of float is 3.40282347e+38. According to the IEEE 754 standard, the maximum exponent of the float type is 127, and the number of digits of the mantissa is 23. In this way, the maximum floating point number is 3.40282347 e+38; 2. In the Java language, the maximum float value is 3.4028235E+38; 3. In the Python language, the maximum float value is 1.7976931348623157e+308.
2023-10-11 comment 0 4022
Course Introduction:179. Largest Number Difficulty: Medium Topics: Array, String, Greedy, Sorting Given a list of non-negative integers nums, arrange them such that they form the largest number and return it. Since the result may be very large, so you need to return
2024-09-19 comment 0 506
Course Introduction:This time I will show you how to get the largest and smallest elements in Number, and what are the precautions for getting the largest and smallest elements in Number. The following is a practical case, let's take a look.
2018-06-11 comment 0 1164
Course Introduction:MySQL was able to store 255 characters before version 5.0.3, but starting from version 5.0.3, it can store 65,535 characters. The official MySQL documentation states: The effective maximum length of VARCHAR in MySQL 5.0.3 and later depends on the maximum row size (65,535 bytes, which is shared by all columns) and the character set used. For example, utf8 characters may require up to three bytes per character, so a VARCHAR column using the utf8 character set can be declared to have a maximum of 21,844 characters. Keep in mind that the maximum row size limit is 65,535 bytes. This means that including all columns, the total size should not exceed 65,535 bytes. Let's see if this is violated
2023-09-06 comment 0 1860
Course Introduction:This article explains the relevant knowledge of SQL Server to find the maximum value, minimum value, time corresponding to the maximum value, and time corresponding to the minimum value in SQL Server.
2018-05-09 comment 0 4304