{"repo":"Hazrat-Ali9/PostgresSQL","free":true,"listed":false,"github":"https://github.com/Hazrat-Ali9/PostgresSQL","clone":"git clone https://github.com/Hazrat-Ali9/PostgresSQL.git","description":"🐸 PostgreSQL the 🦊 powerful open 🐲 source relational 🐳 database system 🐙 known its 🦥 robustness scalability 🐣 and advanced 🪲 features Ideal 🦖 developers DBAs 🐟 and data 🐬 engineers schema 🐢 design normalization 🐡 and stored 🐯 procedures data 🍅 modeling JSON 🍏 support full 🍓text search 🥬 and 🍘 extensions like 🍪","language":"TypeScript","stars":42,"topics":["javascript","package","postgres","postgresql","postgresql-database","postman","postpay-team","prisma","react","sql"],"license":"MIT","category":"databases-storage","readme_excerpt":"🐞 Hazrat Ali 🪂 Programmer Software Engineering What is PostgreSQL? PostgreSQL is an open-source object-relational database management system (ORDBMS) with an emphasis on extensibility and standards compliance. As a database server, its primary function is to store data securely, supporting best practices, and to allow for retrieval at the request of other software applications. It can handle workloads ranging from small single-machine applications to large Internet-facing applications with many concurrent users. What is the purpose of a database schema in PostgreSQL? A database schema is a way to logically group objects such as tables, views, stored procedures, etc. Think of a schema as a container of objects. You can assign a user login permissions to a single schema so that the user can only access the objects they are authorized to access. Explain the primary key and foreign key concepts in PostgreSQL. A primary key is a column or a set of columns that uniquely identifies each row in the table. A table can have only one primary key that consists of single or multiple columns. When multiple columns are used as a primary key, they are called a composite key. A foreign key is a column or a set of columns in a table that references to the primary key columns in another table. The table that the foreign key points to is called the referenced table or parent table. A table can have multiple foreign keys depending on its relationships with other tables. What is the difference b","default_branch":null,"files":null,"tree":[],"storefront":"/r/Hazrat-Ali9","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/Hazrat-Ali9/PostgresSQL/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}