Updated on 31-Jan-2024 18:44:44
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Introduction This article simplifies how you can leverage real-world examples, syntaxes and programming techniques in PL/SQL to master printing different types of patterns effectively. Examples of Pattern Printing in PL/SQL We”ll cover how to create pyramid patterns, diamond patterns, and number patterns with their respective code snippets and syntax. Going through the present section, you will have a clear understanding of how to implement these patterns in your PL/SQL programs. Pyramid Pattern For a comprehensive understanding of pattern printing in PL/SQL, delving into the pyramid pattern is an ideal starting point. Here”s how to design a pyramid pattern using … Read More
Updated on 28-Jun-2024 13:04:11
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Introduction This article discusses the printing of prime numbers between two given values using PL/SQL. It emphasizes the importance of efficiency, precision, readability, maintainability, and error handling in software development. Optimized algorithms and data structures are employed to efficiently identify prime numbers. The use of meaningful variable names, proper indentation, and comments enhances code comprehension and adheres to coding best practices. Error handling and validation are crucial for producing reliable software solutions. The article highlights that there is an infinite number of prime numbers, underscoring the need for efficient algorithms. The focus is on providing a comprehensive and engaging … Read More
Updated on 31-Jan-2024 17:24:59
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Introduction Navigating the complex world of PostgreSQL system architecture can be challenging, especially when it comes to optimizing your database management. As one of the most advanced relational databases worldwide, understanding its intricacies is crucial for effective data handling. This article provides a comprehensive guide on the inner workings of PostgreSQL”s architecture, from client-side processes to potential scalability issues. Ready to decode this essential piece of any modern software infrastructure? Let”s dive in! Overview of PostgreSQL System Architecture The PostgreSQL system architecture consists of various components, including client-side processes, the Postmaster daemon process, back-end processes, and shared pool. Client-side Process … Read More
Updated on 22-Jan-2024 17:04:55
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Introduction Navigating through database operations in XAMPP can be challenging, particularly for beginners. Realizing this complexity, over 15 million active monthly users have turned to XAMPP for its ease of use and flexibility. This article offers a step-by-step guide on performing basic database operations in XAMPP, from data insertion to deletion. Let”s take the first stride towards mastering your XAMPP database management skills together! Basic DataBase Operations in XAMPP Basic DataBase Operations in XAMPP include performing CRUD operations such as select, insert, update, and delete statements on a MySQL database using PHP. SELECT Statement The SELECT statement is a … Read More
Updated on 13-Sep-2023 11:07:16
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SQLAlchemy is one of the popular Python libraries used for working with the databases. It offers a high-interface for connecting to variety of databases, including MySQL, PostgreSQL, and MongoDB. So, with the help of SQLAlchemy, Python codes can be written which interacts with the database in a more meaningful and intuitive way, that is without writing the SQL queries directly. In this article, we will discuss how to connect to a SQL database using SQLAlchemy in Python. First of all, let us understand what is and SQL database and what is SQLAlchemy. SQL Database A SQL database is … Read More
Updated on 13-Sep-2023 10:54:27
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Python provides variety of libraries one of them is SQLAlchemy, it provides an Object Relational Mapping (ORM) system for working with databases, including PostgreSQL. It is used for the purpose of storing and managing huge amount of structured data by the developers. By connecting both of them we can create a more productive and efficient database. In this article, we will learn how to connect PostgreSQL with SQLAlchemy in Python. What is SQLAlchemy? It is a powerful library that helps in simplifying the process of working with the databases, and is widely used in web development and data analysis. … Read More
Updated on 13-Sep-2023 10:59:56
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What is PyMySQL? It is a python library which is used for connecting MySQL database. It is completely written in Python and uses python for communicating with MySQL server. Compatible with Python 2.7 and python 3.x, and provides a simple and instinctive interface for connecting to the MySQL database, executing SQL queries and for retrieving results. Why PyMySQL? It does not require any additional software, it is easy to use, provides security that is it supports SSL connections for secure communication, hence it is a popular choice for building Python applications that require database connectivity. What is MySQL MySQL … Read More
Updated on 24-Aug-2023 20:39:54
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Introduction As with any password, the root user password for a MySQL or MariaDB database should be changed regularly for security reasons. The root user has complete access and control over all databases and tables within the system, making it a prime target for any potential attacks. Regularly changing the root password can help prevent unauthorized access to your data, as well as provide an added layer of security against potential server breaches. Checking Current Root Password A root user is a powerful administrator account that has full access to the MySQL or MariaDB server. It is important to regularly … Read More
Updated on 22-Aug-2023 17:45:05
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Data Definition Language(DDL) is used for describing data and its relationship in a database. It is also used to define the database schema. The commands only affect the database structure and not the data. The main DDL commands are create, alter, drop and truncate. Create Statement It is used to create a database or table. While creating the table, we specify table_name, column_name followed by data_types(int, float, varchar, etc) and constraints(primary key, not null, etc) Syntax CREATE TABLE table_name ( column1 datatype, column2 datatype, ….. ) Example In this … Read More
Updated on 22-Aug-2023 17:41:11
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DCL(Data Control Language) work is to deal with sql commands that are used to permit a user to access, modify and work on a database. it is used to access stored data. It gives access, revoke access and change the permission to the owner of the database as per the requirement. It helps in how sql can use a user authority to modify or retrieve data and protect against unauthorised access. It complements data manipulation language(DML) and data definition language(DDL). It is the simplest among the three command It is basically used for enforcing data security. DCL Commands … Read More
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