Oracle is a database management system widely used in current enterprises, providing a variety of different service types to meet different business needs. This article will provide an in-depth explanation of Oracle's various service types and their scope of application, and provide specific code examples to illustrate.
Oracle’s service types mainly include the following: Oracle Database, Oracle Cloud, Oracle Autonomous Database, Oracle Exadata, Oracle MySQL, etc. Below we will introduce them one by one.
CREATE TABLE employees ( employee_id number(6), first_name varchar2(50), last_name varchar2(50), email varchar2(100), hire_date date ); INSERT INTO employees (employee_id, first_name, last_name, email, hire_date) VALUES (1, 'John', 'Doe', 'john.doe@example.com', TO_DATE('2022-03-01', 'yyyy-mm-dd'));
# 使用Oracle Cloud命令行工具创建数据库实例 oci db autonomous-database create --cpu-core-count 1 --db-name mydb --admin-password Welcome123# --display-name mydb --workload-type OLTP
CREATE TABLE customers ( customer_id number(10), customer_name varchar2(100), city varchar2(50), country varchar2(50) ); INSERT INTO customers (customer_id, customer_name, city, country) VALUES (1, 'ABC Company', 'New York', 'USA');
SELECT e.employee_id, e.first_name, e.last_name, d.department_name FROM employees e JOIN departments d ON e.department_id = d.department_id WHERE e.salary > 5000;
CREATE DATABASE mydatabase; USE mydatabase; CREATE TABLE products ( product_id int, product_name varchar(50), price decimal(10, 2) );
To sum up, Oracle provides a variety of different service types that can be customized according to the needs and size of the enterprise. Choose an appropriate database management system. Through the introduction and code examples of this article, readers can better understand Oracle's various service types and their scope of application, and provide reference and guidance for actual business applications.
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