SQL Server 不删除信息重新恢复自动编号列的序号的方法
SQL Server 不删除信息重新恢复自动编号列的序号的方法
在sql server中经常有这样的问题：一个表采用了自动编号的列之后，由于测试了好多数据，自动编号已累计了上万个。现在正是要用这个表了，测试数据已经删了，遗留下来的问题 就是 在录入新的数据，编号只会继续增加，已使用过的但已删除的编号就不能用了， 谁知道如何解决此问题？
truncate命令不但会清除所有的数据，还会将IDENTITY的SEED的值恢复到原是值。
而DBCC CHECKIDENT则更加方便一些，可以在不删除数据的情况下指定SEED的值。
1. truncate table tablename
2. DBCC CHECKIDENT (tablename,reseed,1)
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
1378
52
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
Detailed explanation of the Set tag function in MyBatis dynamic SQL tags
Feb 26, 2024 pm 07:48 PM
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
What does the identity attribute in SQL mean?
Feb 19, 2024 am 11:24 AM
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.
How to implement Springboot+Mybatis-plus without using SQL statements to add multiple tables
Jun 02, 2023 am 11:07 AM
When Springboot+Mybatis-plus does not use SQL statements to perform multi-table adding operations, the problems I encountered are decomposed by simulating thinking in the test environment: Create a BrandDTO object with parameters to simulate passing parameters to the background. We all know that it is extremely difficult to perform multi-table operations in Mybatis-plus. If you do not use tools such as Mybatis-plus-join, you can only configure the corresponding Mapper.xml file and configure The smelly and long ResultMap, and then write the corresponding sql statement. Although this method seems cumbersome, it is highly flexible and allows us to
How to install, uninstall, and reset Windows server backup
Mar 06, 2024 am 10:37 AM
WindowsServerBackup is a function that comes with the WindowsServer operating system, designed to help users protect important data and system configurations, and provide complete backup and recovery solutions for small, medium and enterprise-level enterprises. Only users running Server2022 and higher can use this feature. In this article, we will explain how to install, uninstall or reset WindowsServerBackup. How to Reset Windows Server Backup If you are experiencing problems with your server backup, the backup is taking too long, or you are unable to access stored files, then you may consider resetting your Windows Server backup settings. To reset Windows
How to solve the 5120 error in SQL
Mar 06, 2024 pm 04:33 PM
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.
