举例说明用sql查询表1的某字段值包含在表2的某字段值内容里的记
现有表table1和表table2,表结构如图 table1: table2: 现在的目的是从table1中查询出所有stus为0,而且对应fid的包含在table2的fids字段的里的所有记录。 实现的sql语句如下: select * from table1 where exists( select fid from table2 where stus='0'
现有表table1和表table2,表结构如图
table1: table2:
现在的目的是从table1中查询出所有stus值为0,而且对应fid的值包含在table2的fids字段的值里的所有记录。
实现的sql语句如下:
select * from table1
where exists(
select fid from table2
where stus='0'
and table2.fids like'%' || table1.fid || '%')
查询的结果如下

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

AI Hentai Generator
Generate AI Hentai for free.

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

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 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.

Especially over the past decade, mobile devices have become the primary way to share content with friends and family. The easy-to-access, easy-to-use interface and ability to capture images and videos in real time make it a great choice for creating and sharing content. However, it's easy for malicious users to abuse these tools to forward unwanted, sensitive content that may not be suitable for viewing and does not require your consent. To prevent this from happening, a new feature with "Sensitive Content Warning" was introduced in iOS17. Let's take a look at it and how to use it on your iPhone. What is the new Sensitive Content Warning and how does it work? As mentioned above, Sensitive Content Warning is a new privacy and security feature designed to help prevent users from viewing sensitive content, including iPhone

What is Identity in SQL? Specific code examples are needed. In SQL, Identity is a special data type used to generate auto-incrementing numbers. It is often used to uniquely identify each row of data in a table. The Identity column is often used in conjunction with the primary key column to ensure that each record has a unique identifier. This article will detail how to use Identity and some practical code examples. The basic way to use Identity is to use Identit when creating a table.

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

How to change the page that opens the Microsoft Edge browser to 360 navigation? It is actually very simple, so now I will share with you the method of changing the page that opens the Microsoft Edge browser to 360 navigation. Friends in need can take a look. I hope Can help everyone. Open the Microsoft Edge browser. We see a page like the one below. Click the three-dot icon in the upper right corner. Click "Settings." Click "On startup" in the left column of the settings page. Click on the three points shown in the picture in the right column (do not click "Open New Tab"), then click Edit and change the URL to "0" (or other meaningless numbers). Then click "Save". Next, select "

Interpretation of MyBatis dynamic SQL tags: Detailed explanation of Set tag usage MyBatis is an excellent persistence layer framework. It provides a wealth of dynamic SQL tags and can flexibly construct database operation statements. Among them, the Set tag is used to generate the SET clause in the UPDATE statement, which is very commonly used in update operations. This article will explain in detail the usage of the Set tag in MyBatis and demonstrate its functionality through specific code examples. What is Set tag Set tag is used in MyBati

Solution: 1. Check whether the logged-in user has sufficient permissions to access or operate the database, and ensure that the user has the correct permissions; 2. Check whether the account of the SQL Server service has permission to access the specified file or folder, and ensure that the account Have sufficient permissions to read and write the file or folder; 3. Check whether the specified database file has been opened or locked by other processes, try to close or release the file, and rerun the query; 4. Try as administrator Run Management Studio as etc.
