What is a database? Put simply, a database is where you (or more precisely, your software) stores information so that it can be found again later. You can also create relationships between the information in the database to link them and it allows the software to retrieve the information ...
source code is the programming code written by a programmer which tells the computer what to do. it's written in a computer language such as c++ or python and is stored in files on the computer. when the program is executed, it reads each line of code and carries out whatever ...
Thus, if a data type is astring, the computer might interpret it as the name of a person or city, a greeting and so on. However, if the data is of typeBoolean, the computer will know that it can only have one of two values: true or false. Similarly, the computer will interpret w...
Does the word 'query' mean the same in both English dictionary and computer programming? Find out what a query is and try wriitng your own!
A data scientist is an analytics professional who is responsible for collecting, analyzing and interpreting data to help drive decision-making in an organization. The data scientist role combines elements of several traditional and technical jobs, including mathematician, scientist, statistician and compute...
Een clouddatabase is een verzameling data, gestructureerd of ongestructureerd, die zich op een privé-, openbaar of hybride cloud computing-platform bevindt. Er zijn twee typen clouddatabasemodellen: traditioneel en Database-as-a-Service (DBaaS). Met DBaaS worden administratieve taken en ond...
A database management system (or DBMS) is essentially nothing more than a computerized data-keeping system. Users of the system are given facilities to perform several kinds of operations on such a system for either manipulation of the data in the databa
What is a string? A string is a data type found in computer programming that consists of alphanumeric characters (letters and numbers). A string can be described as a sequence of characters, words, or other meaningful symbols. The characters in a string are stored together as one unit and...
Client certificates:This is a form of a digital ID that can identify one machine to another — a specific user to another user. This can be used to allow a user to access a protected and secure database and also for email. With email, often theS/MIME(Secure/Multipurpose Internet Mail ...
What is cost based optimization? How to tune SQL queries SQL Index Performance What is a bitmap index? Oracle Indexes Examples System privileges vs. object privileges SQL Grant SQL Revoke SQL Create User Database Roles SQL CASE Statement SQL Searched CASE Statement SQL Inline View RANK() versus...