ict Flashcards
what does html mean?
Hypertext Markup Language
WHAT IS DBMS?
A Database Management System (DBMS) is software designed to store, retrieve, define, and manage data in a database.
WHAT ARE DBMS OBJECTS?
A database object in a relational database is a data structure used to either store or reference data. The most common object that people interact with is the table. Other objects are indexes, stored procedures, sequences, views and many more.
WHAT ARE EXAMPLES OF DBMS OBJECTS?
view, sequence, index, Table synonym
WHAT IS A DATABASE?
It is an organized collection of related data that is stored and convenient to use and access.
what is a primary key?
The primary key is a column or set of columns whose value uniquely identify each row in the table.
what is a database made of?
Databases are made up of files
what are files made of?
Files are made up of records
what are records made of?
Records are made up of data fields
what is a cell?
An intersection of a row and column
what are the types of database?
FLAT FILE DATABASE
RELATIONAL DATABASE
what is a flat file database?
It is a type of database where all the data is stored in one table. They can be created spreadsheet, text file or using a database software. They are simple and effective for organizing small amounts of data.
what is a relational database?
It is a type of database where large amounts of data are stored in more than one table. It eliminates repetition, saves storage space, reduces errors, speeds up data entry and enables changes to be made quickly, are several tables grouped together to from a link, thus preventing unnecessary repetition of data.
what are flat file databases not suitable?
However, they are not suitable for large amounts of data with multiple data types in it.
what is used to avoid repetition and distinguish records with the same or similar details in html?
a primary key is used