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What is Oracle (Oracle Tutorial)

Oracle is a relational database management system (RDBMS) developed by Oracle Corporation. It is a database system that provides robust and secure data management services to applications and efficiency in managing large amounts of data. Oracle is widely used in information technology for mission-critical data processing and decision-making.

Syntax

The syntax for creating a table in Oracle is as follows:

CREATE TABLE table_name (
   column1 datatype constraint,
   column2 datatype constraint,
   column3 datatype constraint,
   .....
   columnn datatype constraint
);

Here, table_name is the name of the table to be created, column1 through column_n are the names of the columns within the table and datatype is the data type of the columns. Constraints used in creating the table might include primary key constraints, foreign key constraints, check constraints, and etc.

Example

Here is an example of creating a table in Oracle:

CREATE TABLE team (
   team_id integer,
   team_name varchar2(40),
   team_city varchar2(30),
   PRIMARY KEY (team_id)
);

Explanation

In the above example, we have created a table named team with columns team_id, team_name, and team_city. The data type for team_id is integer, and the data types for team_name and team_city are varchar2(40) and varchar2(30), respectively. The primary key constraint is applied to team_id column.

Use

Oracle is widely used in different programming fields, such as finance, health care, education and business, for storing, organizing, managing and retrieving massive amounts of data. Oracle is used in online transaction processing (OLTP) and online analytical processing (OLAP) applications, which provides efficient data management services to mission-critical applications. Oracle can also be used in combination with other programming languages and tools to develop more comprehensive applications and services.

Important Points

  • Oracle is a relational database management system (RDBMS).
  • Oracle is widely used in various fields for storing, organizing, managing and retrieving massive amounts of data.
  • Oracle can be used in combination with other programming languages and tools to develop comprehensive applications and services.
  • The syntax used for creating a table in Oracle includes column names, data types, and constraints.

Summary

In summary, Oracle is a widely used relational database management system that provides robust and secure data management services to applications. Oracle is widely used in finance, healthcare, education, and business, and can be used in combination with other programming languages and tools to develop more comprehensive applications and services. The syntax used for creating tables in Oracle includes column names, data types, and constraints.

OracleCreate Table
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