今天测试库有个账户的密码忘了,试了十几次就开始提示:ERROR:ORA-28000: the account is locked意思明显就是账户被锁了,可能是
今天测试库有个账户的密码忘了,试了十几次就开始提示:
ERROR:
ORA-28000: the account is locked
意思明显就是账户被锁了,可能是用户的资源设置中对密码重试次数做了限制。
验证:
SQL> select a.username, b.profile, b.resource_name, b.limit
2 from dba_users a, dba_profiles b
3 where a.username = 'GALTTEST' and a.profile = b.profile;
GALTTEST DEFAULT COMPOSITE_LIMIT UNLIMITED
GALTTEST DEFAULT SESSIONS_PER_USER UNLIMITED
GALTTEST DEFAULT CPU_PER_SESSION UNLIMITED
GALTTEST DEFAULT CPU_PER_CALL UNLIMITED
GALTTEST DEFAULT LOGICAL_READS_PER_SESSION UNLIMITED
GALTTEST DEFAULT LOGICAL_READS_PER_CALL UNLIMITED
GALTTEST DEFAULT IDLE_TIME UNLIMITED
GALTTEST DEFAULT CONNECT_TIME UNLIMITED
GALTTEST DEFAULT PRIVATE_SGA UNLIMITED
GALTTEST DEFAULT FAILED_LOGIN_ATTEMPTS 10
GALTTEST DEFAULT PASSWORD_LIFE_TIME 180
GALTTEST DEFAULT PASSWORD_REUSE_TIME UNLIMITED
GALTTEST DEFAULT PASSWORD_REUSE_MAX UNLIMITED
GALTTEST DEFAULT PASSWORD_VERIFY_FUNCTION NULL
GALTTEST DEFAULT PASSWORD_LOCK_TIME 1
GALTTEST DEFAULT PASSWORD_GRACE_TIME 7
确实如此,只允许10次尝试,之后账户就会被锁。
解锁方法很多,通过PLSQL Developer工具解锁可能是最简单、最直观的。
1、用管理员账户登录PLSQL Developer(登录名可以为system,选择类型的时候把Normal修改为Sysdba)。
2、左侧选择My Objects,查看Users文件夹。
3、选择GALTTEST用户,右击点击”编辑“;
4、把“帐户被锁住”的勾去掉;(也可以修改密码)。
5、点击“应用”再点击“关闭”;
6、重新登录就可以通过验证了;
其实使用sqlplus命令行解锁也很简单,用管理员账号sysdba角色登录,执行alter user GALTTEST account unlock;,,即可解锁。
另外,使用如下命令将profile的FAILED_LOGIN_ATTEMPTS属性值修改也可以达到过滤重试次数的限制。
ALTER PROFILE DEFAULT LIMIT FAILED_LOGIN_ATTEMPTS UNLIMITED
附:创建profile的SQL:
create profile test limit;

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

The steps to build a MySQL database include: 1. Create a database and table, 2. Insert data, and 3. Conduct queries. First, use the CREATEDATABASE and CREATETABLE statements to create the database and table, then use the INSERTINTO statement to insert the data, and finally use the SELECT statement to query the data.

MySQL is suitable for beginners because it is easy to use and powerful. 1.MySQL is a relational database, and uses SQL for CRUD operations. 2. It is simple to install and requires the root user password to be configured. 3. Use INSERT, UPDATE, DELETE, and SELECT to perform data operations. 4. ORDERBY, WHERE and JOIN can be used for complex queries. 5. Debugging requires checking the syntax and use EXPLAIN to analyze the query. 6. Optimization suggestions include using indexes, choosing the right data type and good programming habits.

MySQL is suitable for beginners because: 1) easy to install and configure, 2) rich learning resources, 3) intuitive SQL syntax, 4) powerful tool support. Nevertheless, beginners need to overcome challenges such as database design, query optimization, security management, and data backup.

Yes,SQLisaprogramminglanguagespecializedfordatamanagement.1)It'sdeclarative,focusingonwhattoachieveratherthanhow.2)SQLisessentialforquerying,inserting,updating,anddeletingdatainrelationaldatabases.3)Whileuser-friendly,itrequiresoptimizationtoavoidper

ACID attributes include atomicity, consistency, isolation and durability, and are the cornerstone of database design. 1. Atomicity ensures that the transaction is either completely successful or completely failed. 2. Consistency ensures that the database remains consistent before and after a transaction. 3. Isolation ensures that transactions do not interfere with each other. 4. Persistence ensures that data is permanently saved after transaction submission.

MySQL is not only a database management system (DBMS) but also closely related to programming languages. 1) As a DBMS, MySQL is used to store, organize and retrieve data, and optimizing indexes can improve query performance. 2) Combining SQL with programming languages, embedded in Python, using ORM tools such as SQLAlchemy can simplify operations. 3) Performance optimization includes indexing, querying, caching, library and table division and transaction management.

MySQL uses SQL commands to manage data. 1. Basic commands include SELECT, INSERT, UPDATE and DELETE. 2. Advanced usage involves JOIN, subquery and aggregate functions. 3. Common errors include syntax, logic and performance issues. 4. Optimization tips include using indexes, avoiding SELECT* and using LIMIT.


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

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

WebStorm Mac version
Useful JavaScript development tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 English version
Recommended: Win version, supports code prompts!

Zend Studio 13.0.1
Powerful PHP integrated development environment