Database Tutorials and Administration Guides
Explore database tutorials including SQL, MySQL, PostgreSQL, MongoDB, and database administration techniques for performance and scalability.
The Databases section helps you learn database management and optimization techniques.
Databases are essential for storing and managing application data efficiently. This category includes tutorials on SQL, MySQL, PostgreSQL, and NoSQL databases.
You may also explore Programming for application integration.
Topics covered
- SQL queries and optimization
- Database design
- Backup and recovery
- Performance tuning
Who should read this
- Developers
- Database administrators
- DevOps engineers
123 articles
SQL Server COALESCE Function with Practical Examples
The SQL Server Coalesce() function is a basic SQL function which is used to evaluate the list of values and return the first occurrence of non-NULL value. The …
SQL SUBSTRING Function Explained [Beginners]
SQL mainly provides three truncate functions which are working with string. SQL Substring Function, SQL Left Function, SQL Right Function
SQL LIKE | SQL NOT LIKE | SQL LIKE WILDCARD Examples
SQL like comparison operator is used to compare or to manipulate text with regular expression. There is a condition where we need to fetch records which do not …
Pandas set index method explained with examples
Pandas set index is a built-in method in pandas that is used to set the list, Series or dataframe as an index of dataframe.
Mastering Pandas Groupby Method [Basics to Advanced]
Learn how to master the Pandas GroupBy method for data grouping and aggregation in Python. From basic syntax to advanced features, this guide covers essential …
SQL GROUP BY Statement Explained with Practical Examples
The GROUP BY clause is part of SQL SELECT statement. Optionally it is used in conjunction with aggregate functions to produce resulting group of rows from the …
Pandas merge, concat, append, join dataframe - Examples
pandas merge, pandas concat, pd concat, pd merge, pd join, pandas append, dataframe append, pandas left join, pandas merge dataframes, merge two dataframes …
Pandas dataframe explained with simple examples
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SQL CREATE TABLE Statement with Practical Examples
Data stored in the database is logically stored in data tables, using SQL Create Table statement we can create data tables in the database management system
SQL Date Functions Explained with Practical Examples
Different types of SQL Date Functions explained with examples. Some SQL Date Functions are similar in most database management systems. Few SQL Date Functions …
Master SQL CASE Statement: Don't Just Be a Beginner
Unlock the full potential of your database with our expert guide on SQL Case. Learn potent strategies to navigate data complexities and revolutionize your …
SQL INNER JOIN Explained with Simple Examples
The SQL INNER JOIN clause allows you to query data from multiple tables. It returns all rows from Table1, Table2, and Table 3 so on with exact matching rows …
Unlock the Power of SQL UPDATE with Advanced Techniques
Learn to turbocharge your databases with optimization techniques and best practices that will make your SQL UPDATE statements more powerful and efficient.
SQL RIGHT JOIN Explained with Syntax, Scenarios & Practical Examples
Learn SQL RIGHT JOIN with syntax, visual explanation, and practical scenarios. Understand how RIGHT JOIN works, how it differs from LEFT JOIN, how NULL values …
SQL LEFT OUTER JOIN Explained with Examples (LEFT JOIN vs INNER JOIN vs RIGHT JOIN)
Learn SQL LEFT OUTER JOIN with clear examples and diagrams. Understand LEFT JOIN vs INNER JOIN, LEFT JOIN vs RIGHT JOIN, syntax, NULL handling, and practical …