Question 4 : Explain difference between Varchar and Varchar2 in Oracle SQL?ġ.
Most efficient consumption of resources.
It is highly relible and secure database.
Oracle 18c uses adaptive machine learning which will reduce the human errors.
Question 3 : Explain about latest version of Oracle with its advantages?ġ.Oracle has announced the new version in 2018 which is ‘Oracle 18c’.Ģ.Oracle 18c is worlds first autonomous database which will do lot of tasks will be automated using Artificial Intelligence Engine.ģ.Following are some advantages of Oracle 18c :
There are following different Advantages of Oracle SQL :ģ.Most databases uses SQL (Oracle,Postgresql,SQL server) Question 2 : What are different Advantages of Oracle SQL?
In Feb 2018 Oracle 18 C is launched which is worlds first autonomous database.
In July 2014 Oracle 12 C is launched which means oracle with Cloud.
In 2006, Oracle 11g we can add columns with values etc.
In 2003, Oracle 10g ‘g’ means grid (group of DB Servers).
XML (X tended Markup Language), RAC (Real Application Clusters) etc which provided high availability & performance.
In 2001, Oracle 9i with 400 New features, e.g.
In 1999, Oracle 8i ‘I’ means Internet & it has inbuilt JVM (JAVA Virtual Machine).
In 1985, Oracle 5 Client-Server Architecture.
In 1984, Oracle 4 Supports Transactions.
In 1983, Oracle Corporation à Oracle 3.
In 1979, RSI (Relational S/W Incorporation) ….
In 1977, SEL (Software Development Laboratory) … V1.
Question 1 : What is Oracle SQL? Explain its history?ġ.SQL Stands for Structured Query Language which is a database programming language.Ģ.Oracle SQL stands for SQL used to do the database programming in Oracle.ģ.Larry Ericsson is the father of oracle who has started the company in 1977.Ĥ.The following is step-wise evaluation of different Oracle versions Most Important Oracle SQL Interview Questions : I will explain the Oracle SQL Interview questions with different real life industry examples.These interview questions are really useful for the people who are searching the job in Oracle. In my previous article i have given different types of advanced SQL interview questions.In this article i would like to give you the Oracle SQL Interview questions with answers.The SQL language is used by so many database management systems like Microsoft SQL,Postgresql as well.In this article i will focus on different Oracle SQL Interview Questions.