User defined functions in Python are an important method to implement code reusability, modularization and better readability. Arguments make an important part of user defined functions for more flexibility. Function…
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SQL UNION, UNION ALL, INTERSECT and MINUS are set operations to help you to get the required data from multiple tables. It is basically application of Set Theory formulas on…
Python offers a huge repository of inbuilt data types and compound data types like lists, strings, arrays etc. As a programmer you create User Defined Data type called Python Class.…
A Join is a powerful tool in SQL for joining multiple tables and extracting data beyond the results returned by simple SQL SELECT using one table. In addition to Inner…
Individual tables in a database are not enough. The most common need of database is to access data from multiple tables. SQL Join is the way to fulfill the need…
Handling PHP files and directories is an important component of PHP programming. If you want to make an application where you want users to upload some documents and save in…
Python is a powerful programming language with a robust library of functions and other resources for faster development. Its inbuilt functions are a great support to any Python Programmer. Sometimes…
In database systems many times you need to summarize the data stored in tables in answer to adhoc queries of the users. For this SQL Aggregate Functions can be used.…
Web application development, today, is one of the most sought after fields. HTML, CSS, and JavaScript are the key technologies that help to create interactive and lively web pages. There…
A Python String can be understood as a collection of characters. It is a compound data type made-up of individual characters. These characters can be alphabets, numbers or special characters…