Answered: ted: library(RMariaDB) mydb <-…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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I dont really know where to start. So please can someone help me out.

Use the Class Database to pick any S&P500 stock and a 30 calendar day period between Nov 15 and Dec 31, 2020. Create an ARIMA model and a time series plot predicting prices for the next 10 calendar days.

I would like to use Walmart as the stock Ticker: WMT. Thank you.

Use the following R code to get started:

library(RMariaDB)
mydb <- dbConnect(MariaDB(), user='student', password='cosc4347', dbname='SP500', host='oceanplatform0.cdb7tnix15tn.us-west-2.rds.amazonaws.com')
mystock <- "*your stock ticker here*"
sql <- paste("SELECT SUBSTRING(QtTime,1,10), AVG(QtPrice) FROM Quotes WHERE QtSymbol='", mystock, "' GROUP BY SUBSTRING(QtTime,1,10)", sep="")
rs = dbSendQuery(mydb, sql)

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How would I go about writing the code to get the data that's in the databases that my class has? This is in the program RStudio. Any help would be appreashed.

We have these packages
# Now let's install a few packages for the Introduction to R lecture
install.packages(c("dplyr", "e1071", "reshape2", "ggplot2", "zoo"))

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