Because MySQL is open source, it includes numerous features developed in close cooperation with a community of users over almost 30 years. Two capabilities that developers rely on are MySQL’s support for ACID transactions and MySQL’s ability to scale. ACID stands for “atomicity, consistency, ...
then you can also use theWP-Sweepplugin. It is completely free and uses all the proper WordPress delete functions to clean up the database. However, it lacks the optimization options that you’d get in WP-Optimize.
In the past few days onGotDotNet's forums, I've seen the same question come up in at least 5 different ways: "How do I figure out how many days, weeks, hours, or minutes there are between two dates?" People have been pretty quick to answer each question with a snippet of source c...
Arrow functions are a long-awaited change and it’s reasonable to expect that most JavaScript-based code will adopt them aggressively. Promises Of the many solutions that were floated through the ECMAScript community to help address some of the complexity around the Node.js ...
Every string function is explained and exemplified in the article below. If it is more convenient for you, you can save the cheat sheet PDF by clicking theDownload MySQL String Functions Cheat Sheetlink. Download MySQL String Functions Cheat Sheet ...
The file’s mode ➊ represents the file’s permissions and some extra information. There are four parts to the mode, as illustrated in Figure 2-1. 文件的模式 ➊ 表示文件的权限和一些额外信息。模式有四个部分,如图2-1所示。 The first character of the mode is the file type. A dash (-...
Aliasing. MySQL server has column aliasing. Qualifying column names. In MySQL server, if a column name is unique among the tables used in a query, you do not have to use the full qualifier. SELECT with functions. MySQL server has many functions (too many to list here; see Section 6.3)...
In MySQL HeatWave Database Service, there is one extra privilege (as in MySQL Enterprise Edition):TP_CONNECTION_ADMIN You can see that a new user doesn’t have access to the test database anymore: mysql> use test; ERROR 1044 (42000): Access denied for user ‘user1’@’%’ to database...
How many users are there? What does the system do? What are the inputs and outputs of the system? How much data do we expect to handle? How many requests per second do we expect? What is the expected read to write ratio? Step 2: Create a high level design ...
The need for MySQL high availability MySQL databases are pivotal in storing, processing, and retrieving the vast amounts of data that many of us utilize every day. However, the reliance on databases brings to light the challenges associated with downtime. Even minimal periods of inactivity can ...