later. In addition, the user owner wants to ensure that no one else can access the data. To implement this function, DB2 has built-in SQL functions that allow applications to encrypt and decrypt data. When you insert data into a database, you can use the encrypted password provided by the user to encrypt the data. When retrieving the data, you must provide the same password to decrypt the data. If you want to use the same PASSWORD multiple times, you
"Guide" This article describes how to easily integrate data encryption into a database application using the new functions provided in IBM DB2 Universal Database Version (Unix Windows).
Over the years, the database has been able to prevent unauthorized people from seeing the data, which is usually done through privileges and permissions in the database manager. In the current environment, the need for con
When using DB2, database security requires us to consider things. This article provides a simple example. In this example, encryption and decryption of passwd are set globally, use the db2 database encryption function encrypt and decrypt_char. For your reference, I hope to enlighten you.
Example:
1.C:>
"Guide" to give a simple example, encryption, decryption passwd is set global, using the DB2 database encryption function Encrypt,decrypt_char implementation.
Cases:
1. C:\>db2 create table encode_demo(col1 varchar(100) for bit data) //字段col1数据按二进制存放 DB20000I SQL 命令成功完成。 2. C:\>d
Example:
1.C: \> db2 create table encode_demo (col1 varchar (100) for bit data)// Field col1 data is stored in binary formatThe DB20000I SQL command is successfully completed.2.C: \> db2 set encryption password = 'loveunix'// Set the encrypted and decrypted passwdThe DB20000I SQL command is successfully completed.3.C: \>
Analyze the causes of full DB2 Activity logs and solutions to full DB2 logs, db2 logs
Log usage
Displays the usage of logs under concurrent transaction conditions
There are three concurrent programs: Process 1, Process 2, and Process 3. Each program has two transactions. Blue blocks represent SQL statements, red blocks represent commit operations, and green bloc
DB2 has three main security mechanisms to help DBAs implement database security plans:
Authentication, authorization, and privilege ).
Five different permission levels: sysadm, sysctrl, sysmaint, dbadm, and load
A new concept in DB2 9 is tag-based access control (lbac) that allows control of who has the right to access individual rows and/or columns.
Install sample DBDb2cmdDb2sampleCreating Database "sampl
Tags: database DB2DB2 Zostalking about-DB2 LUWVSDB2 ZosOverview:you may have DB2 LUW knows a lot, but little is known about DB2 Zos(Big Machine operating system) because IBM 's internal data has always been relatively closed, especially for products we rarely see on the market, such as Zos Operating system, generally in the bank's internal staff and IBM employee
the DB2 for z/OS system. This feature improves security by using tokens, eliminating the overhead of level two security checks for each transaction issued by the server. As I mentioned in my discussion of purequery, this feature can significantly improve performance for systems that handle a large number of distributed dynamic transaction loads.
Finally, DB2 9 supports column-level data
Http://hi.baidu.com/wader2006/blog/item/78406b60b51f8b47ebf8f8f0.html
DB2 Common Command Set----DB2 maintenance 2007-09-09 10:10 in the DB2 development process, the whole development process also has a very important part of the work is the maintenance of the database, for the maintenance of a huge information system is very necessary; Leave a simple maintenance
Many technicians can easily discuss the details of DB2 technology and confidently talk about query parallelism, data compression, WebSphere MQ integration, large object management, JDBC and ado.net drivers, data sharing on mainframe Parallel Sysplex, DB2 for Lin UX, Unix, and Windows (LUW) multidimensional clusters, and so on. But what happens if the person who talks is a member of the management? The main
Author: gnuhpcSource: http://www.cnblogs.com/gnuhpc/
1. Level correspondence• Environment variables at the operating system level• The DB2 profile registry variables at the operating system and instance levels• The Database Manager (DBM) configuration file at the instance level• The Database (db) configuration file at the database levelThe DB2 environment consists of the following parts:1)
DB2 Vs MySQL series | comparison of data types between MySQL and DB2, db2mysql
As MySQL Databases become more and more widely used, there are more and more demands for migration from DB2 to MySQL databases. During database migration, the first and most basic and most important thing is the conversion between the two database data types.
Related reading:
Fr
1.Encryption Algorithm Daquan:Rsa:RSA is made of the initial letters of the surnames of Ron Rivest, Adi Shamir, and Leonard Adleman, who first publicly desc Ribed the algorithm in 1977.Http://www.emc.com/corporate/about-rsa/index.htmHttps://en.wikipedia.org/wiki/RSA_%28cryptosystem%29DSA: Digitally Signature algorithm digital Signature AlgorithmECDSA: Elliptic Curve digital Signature algorithm Elliptic curve Signature algorithmDSS: Digital Signature S
DB2 joint database is a special form of distributed database management. In the federated database system, you can use an SQL command to send command requests to multiple data sources. Before remote replication between DB2 and non-DB2 databases, ensure that non-DB2 data sources can be accessed by the
Basic DB2 database operations and basic db2 operationsStart the DB2 service: db2startDisable the DB2 service: db2stop1. load data:1. load with the default separator. The default value is ",".Db2 "import from btpoper.txt of del insert into btpoper"2. load with the specified s
Tags: http io os ar using for SP data onI. BACKGROUNDDB2 (DB2 certified DB2 Training) Joint database (Database training database certification) is a special form of distributed database management. In a federated database system, you can issue command requests to multiple data sources through a single SQL command. Before replicating between DB2 and non-
Original address:Http://hi.baidu.com/wader2006/blog/item/78406b60b51f8b47ebf8f8f0.htmlDB2 Common Command Set----DB2 maintenance 2007-09-09 10:10 in the DB2 development process, the whole development process also has a very important part of the work is the maintenance of the database, for the maintenance of a huge information system is very necessary; Leave a simple maintenance manual for a rainy night. Som
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