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The ​Students​, ​Enrollments​, ​Courses,​ ​Departments ​and ​Faculty ​table are defined as follows: Column Name Type NetId VARCHAR(10) FirstName VARCHAR(255) LastName VARCHAR(255) Department VARCHAR(100) Column Name Type NetId VARCHAR(10) CRN INT Credits INT Score REAL Column Name Type CRN INT Title VARCHAR(255) Department VARCHAR(100) Instructor VARCHAR(255) Column Name Type Department VARCHAR(100) NumberOfStudents INT YearOfEstablishment INT DepartmentHead

CS430/630 – Homework 2 Released February 18, Due March 02 50 points (5/100 of final grade) Instructions: The homework is due on Fri, March 02, 11:59pm. All submissions must be in digital form. You have to create an SQL script for each question (Q1.sql and Q2.sql) with your query answers, and place them in your

Overview Structured query language (SQL) is a user-friendly language for specifying relational algebra queries. It is supported by all the major database systems. SQL provides: Data Manipulation Language (DML) – retrieve, insert and modify database contents Data Definition Language (DDL) – add and delete database objects Data Control Language (DCL) – configure security access In

cs2141-as4-f18-v4 1 CSCI 2141: ASSIGNMENT-4 Given: November 20th, 2018 Due: December 4th, 2018 (midnight) Objective: With this assignment, you will put together all the different parts of the database design and implementation life cycle and create a 3-Tier Database System. So, let’s start J Questions: 1) Design a relational database schema for a database application

SQL: Queries, Constraints, Triggers SQL Aggregate Queries CS430/630 Lecture 8 Slides based on “Database Management Systems” 3rd ed, Ramakrishnan and Gehrke Aggregate Operators Significant extension of relational algebra COUNT (*) COUNT ( [DISTINCT] A) SUM ( [DISTINCT] A) AVG ( [DISTINCT] A) MAX (A) MIN (A) SELECT COUNT (*) FROM Sailors S A is a

1 Spatial Databases Dr Claire Ellul c.ellul@ucl.ac.uk Assignment Progress • By now you should have: – Created your system specification – Created your conceptual and logical diagrams and written the documentation – Written the DDL, DML and the non-spatial queries – Made good progress on your 500 word assignment • You can now refine the

SQL: Queries, Constraints, Triggers SQL Division CS430/630 Lecture 7 Slides based on “Database Management Systems” 3rd ed, Ramakrishnan and Gehrke Division  Used to answer queries such as: Find sailors who have reserved all boats.  Let A have 2 fields, x and y; B have only field y:  A/B =  A/B contains