Talk about the between_PHP tutorial on sql query
Author: Ah Liang
Published in ASP Zone, 2000-11-25 21:42
Example 1: Find the student number and age of students between 20 and 22 years old (including 20 and 22)
select number,age
from s
where age between 20 and 22
Example 2: Find the student number and age of students who are not between 20 and 22 years old
select number,age
from s
where age not between 20 and 22
Note: between is followed by a low value, and is followed by a high value!
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
1665
14
1423
52
1321
25
1269
29
1249
24
What is the difference between HQL and SQL in Hibernate framework?
Apr 17, 2024 pm 02:57 PM
HQL and SQL are compared in the Hibernate framework: HQL (1. Object-oriented syntax, 2. Database-independent queries, 3. Type safety), while SQL directly operates the database (1. Database-independent standards, 2. Complex executable queries and data manipulation).
Usage of division operation in Oracle SQL
Mar 10, 2024 pm 03:06 PM
"Usage of Division Operation in OracleSQL" In OracleSQL, division operation is one of the common mathematical operations. During data query and processing, division operations can help us calculate the ratio between fields or derive the logical relationship between specific values. This article will introduce the usage of division operation in OracleSQL and provide specific code examples. 1. Two ways of division operations in OracleSQL In OracleSQL, division operations can be performed in two different ways.
Comparison and differences of SQL syntax between Oracle and DB2
Mar 11, 2024 pm 12:09 PM
Oracle and DB2 are two commonly used relational database management systems, each of which has its own unique SQL syntax and characteristics. This article will compare and differ between the SQL syntax of Oracle and DB2, and provide specific code examples. Database connection In Oracle, use the following statement to connect to the database: CONNECTusername/password@database. In DB2, the statement to connect to the database is as follows: CONNECTTOdataba
12306 How to check historical ticket purchase records How to check historical ticket purchase records
Mar 28, 2024 pm 03:11 PM
Download the latest version of 12306 ticket booking app. It is a travel ticket purchasing software that everyone is very satisfied with. It is very convenient to go wherever you want. There are many ticket sources provided in the software. You only need to pass real-name authentication to purchase tickets online. All users You can easily buy travel tickets and air tickets and enjoy different discounts. You can also start booking reservations in advance to grab tickets. You can book hotels or special car transfers. With it, you can go where you want to go and buy tickets with one click. Traveling is simpler and more convenient, making everyone's travel experience more comfortable. Now the editor details it online Provides 12306 users with a way to view historical ticket purchase records. 1. Open Railway 12306, click My in the lower right corner, and click My Order 2. Click Paid on the order page. 3. On the paid page
How to check your academic qualifications on Xuexin.com
Mar 28, 2024 pm 04:31 PM
How to check my academic qualifications on Xuexin.com? You can check your academic qualifications on Xuexin.com, but many users don’t know how to check their academic qualifications on Xuexin.com. Next, the editor brings you a graphic tutorial on how to check your academic qualifications on Xuexin.com. Interested users come and take a look! Xuexin.com usage tutorial: How to check your academic qualifications on Xuexin.com 1. Xuexin.com entrance: https://www.chsi.com.cn/ 2. Website query: Step 1: Click on the Xuexin.com address above to enter the homepage Click [Education Query]; Step 2: On the latest webpage, click [Query] as shown by the arrow in the figure below; Step 3: Then click [Login Academic Credit File] on the new page; Step 4: On the login page Enter the information and click [Login];
Database technology competition: What are the differences between Oracle and SQL?
Mar 09, 2024 am 08:30 AM
Database technology competition: What are the differences between Oracle and SQL? In the database field, Oracle and SQL Server are two highly respected relational database management systems. Although they both belong to the category of relational databases, there are many differences between them. In this article, we will delve into the differences between Oracle and SQL Server, as well as their features and advantages in practical applications. First of all, there are differences in syntax between Oracle and SQL Server.
Comparison of similarities and differences between MySQL and PL/SQL
Mar 16, 2024 am 11:15 AM
MySQL and PL/SQL are two different database management systems, representing the characteristics of relational databases and procedural languages respectively. This article will compare the similarities and differences between MySQL and PL/SQL, with specific code examples to illustrate. MySQL is a popular relational database management system that uses Structured Query Language (SQL) to manage and operate databases. PL/SQL is a procedural language unique to Oracle database and is used to write database objects such as stored procedures, triggers and functions. same
Analysis of the impact of MySQL connection number on database performance
Mar 16, 2024 am 10:09 AM
Analysis of the Impact of MySQL Connection Number on Database Performance With the continuous development of Internet applications, databases have become an important data storage and management tool to support application systems. In the database system, the number of connections is an important concept, which is directly related to the performance and stability of the database system. This article will start from the perspective of MySQL database, explore the impact of the number of connections on database performance, and analyze it through specific code examples. 1. What is the number of connections? The number of connections refers to the number of client connections supported by the database system at the same time. It can also be managed
