SQL SELECT DISTINCT

SQL DISTINCT clause is used to remove duplicate records. SELECT DISTINCT returns distinct(different) values. DISTINCT can be used with aggregate functions: COUNT, AVG, MAX, MIN. Syntax: SQL SELECT DISTINCT based on one column You can SELECT DISTINCT values from one column in a table. Below is the syntax. SQL SELECT DISTINCT based on multiple columns …

SQL SELECT Statement

The SELECT statement in SQL is used to retrieve data from a database. Mostly used to retrieve all data in a table and data from desired table columns (fields). SELECT Syntax In the above syntax, you are selecting data from exact columns or fields indicated as column1, column2, column3 and so on. To select all …

What is a Database?

A Database is a collection of unknown figures known as data. Databases are usually organized and un-organized data. Databases also contain rows(record) and columns(field). Company’s both large and small rely heavily on databases to power their applications. Databases store large amounts of data such as:  user id’s, usernames, email addresses, healthcare data, product information, sales …

What is SQL?

SQL stands for Structured Query Language. SQL is used to store, query, modify, manipulate and retrieve data stored in a relational database. Usually pronounced as “ess-que-ell”. According to ANSI (American National Standards Institute), it is the language for relational database management systems. All relational database systems (RDBMS) accept the use of SQL (MS Access, MySQL, …

Data Scientist vs Data Engineer

In a data centered world, we find a lot of job opportunities as a Data Scientist or Data Engineer for most data-driven organizations. Both career paths are data-driven, analytical and problem solvers. Data scientist, data engineer, data analyst and business analysts are part of data analytics team and compliment each other based on their job …

Top 8 Applications of AI in Healthcare

What is AI Artificial Intelligence(AI) is a branch of computer science that deals with simulation of human intelligence by machines processes and computational rationality. The top 8 applications of Artificial Intelligence in Healthcare are as follow: AI Robot-Assisted Surgery Artificial Intelligence influence in improving health outcomes has proffered solution by implementing Robotic -Assisted Surgery by …

Top 10 Skills for Data Architects

Technical track career in Data Science such as Data Architect require years of experience and training coupled with knowledge of broad range of tools. The top 10 skills for Data Architects are as follows: Business Skill Data Architects should have vast knowledge of the industry, trends and competition so they can solve issues efficiently. Ability …