Aggregation queries and sorting

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Related lectures (27)

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Aggregation Query and Result Sorting

Covers aggregation logic, sorting results, and writing SQL queries based on specific attributes.

Group Actions: Theory and Examples

Explores concrete examples of group actions on sets, focusing on actions that do not change the set.

Query Processing with Relational Operations

Covers query processing with relational operations, including query optimization and different join algorithms.

Optimization Algorithms: Greedy Approach

Explores optimization problems and greedy algorithms for efficient decision-making.

ServiceNow: Creating Dashboards and Reports

Explores creating dashboards in ServiceNow, focusing on advantages, transition from homepages, and important concepts like tasks and incidents.

Active Learning: Group Structures and Symmetric Actions

Explores active learning implications in understanding group structures and symmetric actions.

Merge Sort: Sorting Algorithm

Explains the merge sort algorithm, its correctness, and time complexity compared to other sorting algorithms.

Maps: Key-Value Associations

Covers maps as key-value data structures, including querying, updating, and handling missing values, with practical examples like polynomial representation.

Introduction to Algorithms: Course Overview and Basics

Introduces the CS-250 Algorithms course, covering its structure, objectives, and key topics in algorithmic problem-solving.

Hashing and Sorting

Covers hashing, sorting, extendible hashing, linear hashing, and external sorting.