Author: Awais Farooq

Introduction: Oracle offers a range of certifications that validate expertise in their products and technologies. These certifications are designed to demonstrate an individual’s proficiency in Oracle’s database, cloud services, applications, and other software offerings. Some of the popular Oracle certifications include: Oracle Database Certifications: Oracle Database Certifications are a series of credentials offered by Oracle…

Oracle Corporation offers a full range of cloud computing services under the name Oracle Cloud. It offers a wide variety of services in addition to software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS). With Oracle Cloud, organisations and individuals can install and manage their apps and infrastructure…

A career in Oracle provides numerous possibilities in today’s fast-paced technological world. Oracle Corporation is the world leader in software development and cloud solutions, which delivers various career opportunities for professionals looking for roles in technology. In this article, we will learn about Oracle careers, their advantages, and the way to success, but before that,…

In Oracle, Primary key is the column which has unique values, and it cannot be null. In a table, there can be only one primary key. Primary Key – Using CREATE TABLE statement Syntax: Example Primary Key – Using ALTER TABLE statement Syntax: Example Drop Primary Key Syntax: Example Disable Primary Key Syntax: Example Enable…

In Oracle, comments can be placed in queries. Comments can be a single line as well as multi-line. Comment on a Single Line Syntax Example comment on a multi line Syntax Example

In Oracle, Check Constraints have the specific condition for each row of the table. Using a CREATE TABLE statement Syntax: Example 1 Note : During creating the table we have applied a constraint, in which only 1 to 10 rows can be inserted. So, in below query 12 fields are inserted. If will generate an…

In Oracle, we can change the password using alter command. Syntax : Parameters user_name: user name to change the password. new_password: new password for the user. Example

In Oracle, where clause is used to filter the result. Where clause can be used in INSERT, UPDATE, DELETE, and SELECT statements. Syntax Parameters Conditions: for getting specified records. Table 1: employee1 Table 2: employee2 Example 1 Select *from employee1 where city = ‘raipur’ Example 2 Select *from employee2 where name like ‘s%’

In Oracle, the truncate statement is used to remove all the records of a table. It works same as the delete statement but without using where clause. Syntax Example 1 Table before truncate Table truncated Table after truncate