Create Database - (DB2 Databases)
IBM DB2 is a relational database management system that is widely used in enterprise environments. In order to use DB2, you must first create a database. In this article, we will discuss how to create a database in DB2.
Syntax
The syntax for creating a database in DB2 is as follows:
CREATE DATABASE database_name
ON filegroup_name
COLLATE collation_name
USING CODESET codeset_name
TERRITORY territory
PAGESIZE page_size_in_bytes
BUFFERPOOL bufferpool_name
Here, database_name
is the name of the database you want to create, filegroup_name
is the name of the file group where the data for the database will be stored, collation_name
is the name of the collation sequence to be used in the database, codeset_name
is the name of the codeset to be used in the database, territory
is the territory where the database will be located, page_size_in_bytes
is the size of the pages in the database (in bytes), and bufferpool_name
is the name of the buffer pool to be used for the database.
Example
CREATE DATABASE exampledb
ON datadir
COLLATE LATIN1_GENERAL_CI_AI
USING CODESET ISO8859-1
TERRITORY US
PAGESIZE 4096
BUFFERPOOL buffer1
In this example, we create a database called exampledb
that will be stored in the datadir
file group. We specify the LATIN1_GENERAL_CI_AI
collation sequence, ISO8859-1
codeset, and US
territory. We set the page size to 4096
bytes and specify that the buffer1
buffer pool should be used for the database.
Output
The output of creating a database in DB2 is the newly created database in the database system.
Explanation
When you create a database in DB2, you are creating a container for data storage. The database consists of a set of files that contain the data for the database. When you create the database, you can specify various parameters such as the file group where the data will be stored, the collation sequence to be used, the territory where the database will be located, and more.
Use
Creating a database in DB2 is a necessary step before you can start using the database. With a database in place, you can start adding tables, indexes, and other database objects. You can also define users and permissions to control access to the data in the database.
Important Points
- A database in DB2 is a container for data storage.
- When you create a database, you can specify various parameters such as file group, collation sequence, territory, and more.
- Creating a database is a necessary step before you can start using the database and adding objects to it.
Summary
In summary, creating a database in DB2 is a necessary step before you can start using the database. You can specify various parameters when creating the database, such as the file group, collation sequence, and territory. Once the database is created, you can start adding objects to it and defining user access.