sql mening code example

Example 1: whats sql

SQL stands for Structured Query Language. It’s the language of choice on today’s web for storing,
manipulating and retrieving data within relational databases. Most, if not all of the websites you visit
will use it in some way.
Using SQL, you are able to interact with the database by writing queries, which when executed,
return any results which meet its criteria.

Example 2: how do you use sql

Our web application uses Oracle database and 
I normally write queries to do Data validation. 
For example: 
I create data from UI or I send POST request
from API then I write query to verify that
data was successfully and correctly inserted
into database. Our database consists of
many tables, so most of the time,
I need to write queries that involve joins.

CAN MENTION: Since our application has
large sets of data, data is stored into
Oracle and to another CACHE database. 
I write queries to test data that both are in SYNC(same).