Learn free, at your own pace.

331

Materialized View

Materialized View is a database object that stores the output of a query. Unlike a regular view, which is a virtual table derived from the result of a SELECT…

332

External Tables

In the data world, when we work with databases, we often encounter scenarios where the data we want to query and analyze resides outside the database itself.…

333

Loops

In the context of data and databases, loops typically refer to iterative processes where a set of operations is repeated multiple times based on a specific c…

334

Aggregation Functions

Aggregation Functions are used to perform calculations on a set of values to return a single summarized result. These functions are often applied to columns…

335

UDF

UDF stands for User-Defined Function. It is a feature provided by many programming and database languages that allows users to define their own functions to…

336

Pseudocode

Pseudocode is a high-level description of a computer program or algorithm that uses natural language mixed with some programming language-like constructs. It…

337

Syntax Error

Syntax Errors are like common mistakes that happen a lot in the developer's world. I'm pretty sure every developer, no matter how experienced, must have come…

338

Importance ofStaging Layer

Yes, you are right, in Data World, Staging Layer is one of the most important zones then why to write about it. Trust me it's been underutilized in most impl…

339

GDPR

GDPR, or the General Data Protection Regulation, is a significant law in the European Union focused on data protection and privacy. In very simple terms, it'…

340

Web Service

Web Service is a service offered by an application to enable communication and data exchange at an application-level. There are mainly two types of webservic…