oracle profile 小结
http://blog.sina.com.cn/s/blog_54b09dc901008cs0.html 一、目的: Oracle 系统中的profile可以用来对用户所能使用的数据库资源进行限制,使用 Create Profile命令创建一个Profile,用它来实现对数据库资源的限制使用,如果把该profile分配给用户,则该用户
http://blog.sina.com.cn/s/blog_54b09dc901008cs0.html
一、目的:
Oracle 系统中的profile可以用来对用户所能使用的数据库资源进行限制,使用 Create Profile命令创建一个Profile,用它来实现对数据库资源的限制使用,如果把该profile分配给用户,则该用户所能使用的数据库资源都在该 profile的限制之内。
二、条件:
创建profile必须要有CREATE PROFILE的系统权限。
为用户指定资源限制,必须:
1.动态地使用alter system或使用初始化参数resource_limit使资源限制生效。该改变对密码资源无效,密码资源总是可用。
SQL> show parameter resource_limit
NAME
———————————— ———– ——————————
resource_limit
SQL> alter system set resource_limit=true;
系统已更改。
SQL> show parameter resource_limit;
NAME
———————————— ———– ——————————
resource_limit
SQL>
2.使用create profile创建一个定义对数据库资源进行限制的profile。
3.使用create user 或alter user命令把profile分配给用户。
三、语法:
<span><span> <wbr> <wbr> <wbr> <wbr> CREATE PROFILE profile </wbr></wbr></wbr></wbr></span>LIMIT { resource_parameters<span> | password_parameters } [ resource_parameters | password_parameters ]… ;</span></span>
<em><resource_parameters></resource_parameters></em>
<span>{{ SESSIONS_PER_USER | CPU_PER_SESSION | CPU_PER_CALL | CONNECT_TIME | IDLE_TIME | LOGICAL_READS_PER_SESSION | LOGICAL_READS_PER_CALL | COMPOSITE_LIMIT } { integer | UNLIMITED | DEFAULT } | PRIVATE_SGA { integer [ K | M ] | UNLIMITED | DEFAULT }}</span>
<span>{{ FAILED_LOGIN_ATTEMPTS | PASSWORD_LIFE_TIME | PASSWORD_REUSE_TIME | PASSWORD_REUSE_MAX | PASSWORD_LOCK_TIME | PASSWORD_GRACE_TIME } { expr | UNLIMITED | DEFAULT } | PASSWORD_VERIFY_FUNCTION<span> { function | NULL | DEFAULT }</span></span>}
四、语法解释:
五、举例:
用户已更改。
用户已更改。

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



To query the Oracle tablespace size, follow the following steps: Determine the tablespace name by running the query: SELECT tablespace_name FROM dba_tablespaces; Query the tablespace size by running the query: SELECT sum(bytes) AS total_size, sum(bytes_free) AS available_space, sum(bytes) - sum(bytes_free) AS used_space FROM dba_data_files WHERE tablespace_

Uninstall method for Oracle installation failure: Close Oracle service, delete Oracle program files and registry keys, uninstall Oracle environment variables, and restart the computer. If the uninstall fails, you can uninstall manually using the Oracle Universal Uninstall Tool.

Oracle View Encryption allows you to encrypt data in the view, thereby enhancing the security of sensitive information. The steps include: 1) creating the master encryption key (MEk); 2) creating an encrypted view, specifying the view and MEk to be encrypted; 3) authorizing users to access the encrypted view. How encrypted views work: When a user querys for an encrypted view, Oracle uses MEk to decrypt data, ensuring that only authorized users can access readable data.

There are three ways to view instance names in Oracle: use the "sqlplus" and "select instance_name from v$instance;" commands on the command line. Use the "show instance_name;" command in SQL*Plus. Check environment variables (ORACLE_SID on Linux) through the operating system's Task Manager, Oracle Enterprise Manager, or through the operating system.

The method to solve the Oracle cursor closure problem includes: explicitly closing the cursor using the CLOSE statement. Declare the cursor in the FOR UPDATE clause so that it automatically closes after the scope is ended. Declare the cursor in the USING clause so that it automatically closes when the associated PL/SQL variable is closed. Use exception handling to ensure that the cursor is closed in any exception situation. Use the connection pool to automatically close the cursor. Disable automatic submission and delay cursor closing.

Deleting all data in Oracle requires the following steps: 1. Establish a connection; 2. Disable foreign key constraints; 3. Delete table data; 4. Submit transactions; 5. Enable foreign key constraints (optional). Be sure to back up the database before execution to prevent data loss.

Oracle Invalid numeric errors may be caused by data type mismatch, numeric overflow, data conversion errors, or data corruption. Troubleshooting steps include checking data types, detecting digital overflows, checking data conversions, checking data corruption, and exploring other possible solutions such as configuring the NLS_NUMERIC_CHARACTERS parameter and enabling data verification logging.

SQL statements can be created and executed based on runtime input by using Oracle's dynamic SQL. The steps include: preparing an empty string variable to store dynamically generated SQL statements. Use the EXECUTE IMMEDIATE or PREPARE statement to compile and execute dynamic SQL statements. Use bind variable to pass user input or other dynamic values to dynamic SQL. Use EXECUTE IMMEDIATE or EXECUTE to execute dynamic SQL statements.
