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Advanced SQL and Optimization Interview Questions - SQL

Last Updated: 02 September 2025

Advanced SQL and Optimization covers performance tuning and complex features that make SQL powerful. Topics include stored procedures, triggers, window functions, CTEs, in...read more

Data Manipulation and Querying Interview Questions - SQL

Last Updated: 21 September 2025

Data Manipulation and Querying (DML + Query Processing) in SQL focuses on how data is retrieved and modified. DML commands (INSERT, UPDATE, DELETE, MERGE) handle data chan...read more

Data Definition and Control (DDL + DCL + TCL) Interview Questions - SQL

Last Updated: 02 September 2025

Data Definition and Control (DDL, DCL, TCL) in SQL deals with structuring, securing, and managing transactions in a database. DDL defines objects (CREATE, ALTER, DROP), DC...read more

SQL for Business Analyst

Last Updated: 23 July 2025

SQL (Structured Query Language) is a critical skill for business analysts. It allows them to extract, manipulate, and analyze data stored in relational databases. Whether ...read more

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Business Analyst

SQL SUM() Function

Last Updated: 19 November 2025

The SQL SUM() function is an aggregate function used to calculate the total value of a numeric column. It is widely used in reporting, financial calculations, and data ana...read more

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SQL Count() Function

Last Updated: 22 November 2025

The SQL COUNT() function is used to return the number of rows or non-null values in a column. It helps summarize data in reports and analytics.Counts all rows or rows with...read more

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SQL AND Operator

Last Updated: 23 July 2025

In SQL, the AND operator is an essential tool used to combine multiple conditions in a WHERE clause. This allows us to filter records based on multiple criteria, making ou...read more

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SQL RENAME TABLE

Last Updated: 23 July 2025

Renaming a table is a common and useful operation for database administrators and developers. It is especially useful when we need to correct a naming mistake, organize o...read more

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Database Development Life Cycle

Last Updated: 06 August 2025

In computer systems, data are stored in file-based systems and database systems. File-based systems fail to effectively check data duplication, accuracy, and integrity, le...read more

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Database Design

How much SQL do you need to know as a developer?

Last Updated: 23 July 2025

For any software developers SQL is very essential to learn as they may come across a situation where they have to deal with SQL queries to manage data stored in the databa...read more

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Top 10 SQL Databases To Learn in 2025

Last Updated: 23 July 2025

In the domain of information technology, where data is superior, businesses strive to find ways of storing, manipulating, and interpreting their rapidly increasing amounts...read more

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Last Updated: 31 March 2026

Structured Query Language (SQL) is the standard language used to interact with relational databases. Mainly used to manage data. Whether you want to create, delete, update...read more

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Connect Express Application To MongoDB and MySQL

Last Updated: 19 September 2025

Integrating a database like MongoDB or MySQL with your ExpressJS application is very important for efficient data storage and efficient retrieval of data from the storage....read more

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Web Technologies

Geeks Premier League

Geeks Premier League 2023

Difference Between ON DELETE CASCADE and ON DELETE SET NULL in DBMS

Last Updated: 23 July 2025

ON DELETE CASCADE and ON DELETE SET NULL are two important options in SQL foreign key constraints that define how the database handles related records in a child table whe...read more

SQL Query Interview Questions

Last Updated: 05 December 2025

SQL or Structured Query Language, is the standard language for managing and manipulating relational databases such as MySQL, Oracle, and PostgreSQL. It serves as a powerfu...read more

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Interview-Questions

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