What Are Databases
What are databases?
What are databases? That is a great question!
Databases are used to store large amounts of data in a way that is easy to recall and search, and is safe from file corruption.
Some Database Terminology
What are databases? That is a great question!
Databases are used to store large amounts of data in a way that is easy to recall and search, and is safe from file corruption.
Database Management Systems
When people talk about databases, they are usually referring to database management systems. Database management systems are the software that handles storing and retrieving data from the databases.
How Databases Use Indexes to Retrieve Data Quickly
Indexes make searching data fast.
How Databases Write Data To Disk
If you are writing a computer program, and want to save some important data, how would you do it? The simplest way would be just to write that data directly to your hard drive. This is what a lot of programs do, and sometimes makes a lot of sense, but there are some issues with this approach.
Different Types of Databases
Databases are divided into two types, Relational, and Non Relational. Relational databases are the most common databases, but more recently non relational databases have become popular with large web companies like google and facebook because of their ability to handle huge amounts of data spread across hundreds or thousands of different computers. In exchange for extreme flexibility and scalability, non relational databases give up the ability to easily index data.
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What are databases?
What are databases? That is a great question!
Databases are used to store large amounts of data in a way that is easy to recall and search, and is safe from file corruption.
Some Database Terminology
What are databases? That is a great question!
Databases are used to store large amounts of data in a way that is easy to recall and search, and is safe from file corruption.
Database Management Systems
When people talk about databases, they are usually referring to database management systems. Database management systems are the software that handles storing and retrieving data from the databases.
How Databases Use Indexes to Retrieve Data Quickly
Indexes make searching data fast.
How Databases Write Data To Disk
If you are writing a computer program, and want to save some important data, how would you do it? The simplest way would be just to write that data directly to your hard drive. This is what a lot of programs do, and sometimes makes a lot of sense, but there are some issues with this approach.
Different Types of Databases
Databases are divided into two types, Relational, and Non Relational. Relational databases are the most common databases, but more recently non relational databases have become popular with large web companies like google and facebook because of their ability to handle huge amounts of data spread across hundreds or thousands of different computers. In exchange for extreme flexibility and scalability, non relational databases give up the ability to easily index data.
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