-
Python Programming Language Specials
Python is a popular high-level, interpreted programming language known for its readability and ease of use. Python was invented by Guido Van Rossum and it was first released in February, 1991. The name python is inspired from Monte Python Flying Circus, since circus features numerous powerful acts with simplicity which is also a key feature of python. Python…
-
Indexing in SQL- Explain with examples
Indexing in SQL is a technique used to improve the performance of queries by creating special data structures (indexes) that allow for faster data retrieval. Indexes are created on one or more columns of a table, and they store the values of those columns in a sorted order, along with pointers to the corresponding rows…
-
Pattern matching in SQL- Like Operator
LIKE Operator: The LIKE operator is used to search for a specified pattern in a column. It allows the use of wildcards: % (percent sign): Matches zero or more characters. _ (underscore): Matches any single character. Examples: SELECT * FROM employees WHERE last_name LIKE ‘Sm%’: Finds employees with last names starting with “Sm”. SELECT *…
-
What is Normalization, Denormalization concepts in Database Design?
Normalization and denormalization are two opposing database design techniques aimed at achieving different goals. Let’s explore each concept: Normalization: Normalization is the process of organizing the data in a database to minimize redundancy and dependency. The main objective of normalization is to ensure data integrity and reduce anomalies during data manipulation. Normalization typically involves dividing…
-
How to design and create well-structured and efficient database schema in SQL
Designing a well-structured and efficient database schema in SQL involves several steps and considerations. Here’s a comprehensive guide to help you design a database schema that meets your application requirements while ensuring efficiency, scalability, and maintainability: By following these steps and considerations, you can design a well-structured and efficient database schema in SQL that meets…
-
List out Performance optimization steps for SQL
Optimizing SQL performance is crucial for ensuring that database operations are efficient and scalable. Here are some steps you can take to optimize SQL performance: By following these performance optimization steps, you can improve the efficiency and scalability of your SQL queries and database operations.
