I want to learn sql completely. Is oracle, sql and sql server different if yes, how much. 20% 30% or completely.
What sql, oracle and sql server books I need to study so that when I enter any office having database related job and I vet employed there.
I have read sql and oracle books but today I read DBA books which are different.
Only books wont make a job but one needs to enroll in courses also to make database and dba expert.
What do you think.
Oracle and SQL Server are 100% different.
If one wants to get any kind of database job.Then, should he learn oracle server 2019 , sql/plsql and oracle.
Is sql server the same as DBA!
The way you've phrased your question is difficult to answer. It's not realistic to say "What sql, oracle and sql server books I need to study so that when I enter any office having database related job and I (g)et employed there".
To "learn SQL completely" is not something you can get from simply reading books or taking certification exams. You will have to use the products for several years in order to understand them, and even then, it won't be "completely".
Regarding Oracle vs. SQL Server, both are relational database systems. You can understand their SQL dialects and work with them effectively. As far as understanding them "completely", that is still going to take years.
One analogy: You can study medicine to become a surgeon, but to become a brain surgeon will take additional years specializing in that kind of surgery. Similarly for a cardiac surgeon. Both specialties have crucial differences that are not transferable. A brain surgeon cannot be expected to know how to do a heart transplant, nor would a cardiac surgeon be able to repair a brain embolism.
Are windows and windows server 100% different.
Windows and Windows Server are highly related. That has no bearing on Oracle Database and Microsoft SQL Server.
A Boeing 737 and an Airbus A320 are both passenger aircraft, but are also nearly 100% different. If you get trained to fly one you'd still need to get retrained to fly the other.
Once you get past the most basic, beginner-level fundamentals, they're very, very different.
One concept is
- Learning How To Learn
Another concept is
- How to Learn Anything Extremely Fast
dba = database administrator. the person administering, it is a human (at this moment in history)
you will have to do PRACTICE somewhere
download and install OR online SQL
go to forums and try to answer the questions there
All people go through the LEARNING curve before they become experts
Question is how fast they get through the learning curve
if you know how to circumvent the learning curve
you will go through a lot of things
if you are stuck how to debug , trouble shoot
Start somewhere .. make lots of mistakes ..have some wine while doing it
Hire someone expert to teach you
There might be some simulated softwares of sql mimicking real sql and sql server so that users can test their sql skill there.
Is there borland sql server.