数据库(Database)代写包括SQL语言, relation algebra(关系代数), XML, XPath. 可以画ER图, ER图转换成SQL语句, 数据库规范化(database normalization), 1NF(第一范式), 2NF, 3NF, BCNF，4NF，5NF. 支持MySQL, PostgreSQL, Oracle IBM-DB2等多种关系数据库和NoSQL数据库MongoDB.
Project 2 PLpgSQL Due: Fri 20 May 23:59 1. Aims This project aims to give you practice in reading and understanding a moderately large relational schema (MyMyUNSW) implementing SQL queries and views to satisfy requests for information implementing PLpgSQL functions to aid in satisfying requests for information The goal is to build some useful data […]
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Query 1: For each Symbol starting with the letter “A” compute the lowest and highest trade price every minute for all trades between 9:30am and 4:00pm. Query 2: For each Symbol starting with the letter “B” compute the standard deviation of the trade prices for each hour of the day between 9:30am and 4:00pm. CREATE
CS 457/557 Fall 2016 Assignment #6 – PHP or Go and MYSQL Mode: 1-2 persons (same as HW#1) Groups of 2 must do Task 4 of Step 3. Due Date: Nov. 28 – email the url by 11:59 pm to jarobinson3@crimson.ua.edu Note: you should design your solution so that you need to only email ONE
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University of Sussex Informatics Databases Assignment 2 (Deadline 1.12.16, 4pm) Autumn 2016 This coursework must be submitted electronically via E-submission. You have to answer all 12 questions. Your answers must be uploaded in one file using the template file published on the StudyDirect page. This tem- plate contains essential comments to steer the automatic testing
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COP 5725 ‐‐‐ Fall 2016 Hospital System Database and Data Interface Term Project Due date: Nov. 24, 2016 (THU) The database contains most of the information used by the web application. A database is a collection of related data in the form of schemas, tables, views, stored procedures, triggers, indexes, and other objects. Data Interface
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University of Sussex Autumn 2016 Informatics Databases Assignment 1 (Deadline 20.10.16, 4pm) The coursework assigned below must be submitted as E-submission in one single pdf file on StudyDirect by 4 pm on Thursday, 20 October 2016. Note that no other formats than pdf will be accepted. You are not allowed to share or discuss solutions
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CS 457/557 Final Exam Project Implement Document Store Queries Fall 2016 Mode: Individual Due Date: Dec. 7 Demos 11:30 am -2:00 pm in SEC3429 & 3430 – NO LATE DEMOS EMAIL your code to vrbsky@cs.ua.edu by 11 am Dec. 7 Data File For this assignment you are to write a program to implement the operations required to process and execute NoSQL
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COP 5725 ‐‐‐ Fall 2016 Hospital System Database and Data Interface Term Project Due date: Nov. 3, 2016 (THU) The database contains most of the information used by the web application. A database is a collection of related data in the form of schemas, tables, views, stored procedures, triggers, indexes, and other objects. Data Interface
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Assignment 2 CSC343 Fall 2016 Due November 11th, 11:59pm sharp. Learning Goals By the end of this assignment you should have: good understanding of SELECT statement of SQL writing SQL queries updating / inserting / deleting tuples from or into an existing instance good understanding of SQL DDL commands including addition / deletion of constraints
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COMP2400/COMP6240 – Relational Databases Assignment 2 Due date: 10am, 27 September 2016 This assignment will be marked out of 10. It will count for 10% of the final grade. Below you will find 4 questions to reach this score. Marks are assigned for the process of finding a solution, not only for the result. Hence,
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