Encrypting Data in a Database: SQL Tutorial
In this sql tutorial I'll explain how best to encrypt data in a sql database.
To encrypt data in a sql database, keep in mind the following things:
1) There are two types of encryption to secure a sql database - data at rest encryption and data in transit encryption.
2) Data-at-rest is supported for tablespaces and logging while data-in-transit encryption secures sql queries and data in transit.
3) Make sure to enable a keyring before using data encryption in MySQL server, MariaDB, or Percona Server, and refer to the mysql server or other sql database you may be using.
This video will also provide you with a couple of sql query examples based on mysql server.
Below you will also find some of the most frequently asked sql queries interview questions and answers:
Q: Could you give me some tips for sql query optimization?
A: To optimize INSERT, UPDATE, and DELETE SQL queries, remove indexes or partitions. To optimize read (SELECT) sql queries, add indexes or partitions to minimize the amount of rows your database will be searching through.
Q: What is a sql index?
A: To put it simply, a sql index is a database structure used to quickly find rows. We've already made a couple of videos on sql indexes explained, so make sure to check them out.
Q: Is sql injection very dangerous? How to avoid it?
A: Yes, sql injection is a very dangerous security flaw. To avoid sql injection, avoid passing user input straight to a database.
Q: Explain sql in 100 seconds.
A: SQL is a programming language allowing for work with various RDBMS including the mysql server, mariadb server, percona server, and others.
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