Questions
Questions
Single choice

Question at position 51 A database is maintained and queried using the data mapping language (DML).TrueFalse

Options
A.True
B.False
View Explanation

View Explanation

Verified Answer
Please login to view
Step-by-Step Analysis
The question presents a statement about how a database is maintained and queried, followed by two options. Option 1: True. This asserts that the data mapping language (DML) is used for maintaining and querying the database. In many database contexts, DML stands for Data Manipulation Language, which is indeed the subset of SQL used to query, insert, update, an......Login to view full explanation

Log in for full answers

We've collected over 50,000 authentic exam questions and detailed explanations from around the globe. Log in now and get instant access to the answers!

Similar Questions

This function in the library of Pandas allows you to manipulate data and create new variables (please choose all the correct answers, one or more):

Question at position 17 ________ is a set of commands used to update and query a database.DDL DML DPL DCL

Please create the following data frame: library(tidyverse)student <- tibble(  sid = c(66666,66666,66666,66666,66666,66666,22222,22222,22222,22222,22222,           11111,11111,11111,11111,11111,44444,44444,44444,44444,44444, 44444,           55555,55555,55555,55555,55555,55555, 33333,33333,33333,33333,33333,33333, 77777),   course = c("COMM101", "COMM102", "COMM103", "COMM201", "COMM204","COMM205", "COMM101",              "COMM102", "COMM103", "COMM201","COMM204", "COMM101", "COMM102", "COMM103",              "COMM201", "COMM205", "COMM101", "COMM102", "COMM103", "COMM201","COMM204",              "COMM205", "COMM101", "COMM102", "COMM103","COMM201", "COMM204", "COMM205",             "COMM101", "COMM102", "COMM103", "COMM201", "COMM204","COMM205", "COMM205"),   year = c(2016, 2016, 2016, 2017, 2017, 2017, 2016, 2016, 2017, 2017,2017,2016, 2016,            2016, 2017, 2017, 2016, 2016, 2016, 2016, 2017, 2017,2016, 2016, 2016, 2016,            2017, 2017,2016, 2016, 2016, 2017, 2017, 2017, 2017),  grade = c(85, 88, 72, 67, 80, 90, 77, 77, 77, 77, 77, 78, 82, 82, 80, 90, 80, 80, 80,             85, 85, 85, 79, 80, 81, 82, 83, 84, 90, 88, 95, 80, 80, 80, 99))   You wanted to find out how many unique students have taken courses in 2016.  student %>%   filter(year == 2016) %>%   XXXX(sid) %>% summarise(XXXX(sid)) The result of your code should look something like this: # A tibble: 1 × 1             XXXXXXXXXX                                <int> 1                    6 Please complete the code below. student %>%   filter(year == 2016) %>%   [Fill in the blank] (sid) %>% summarise([Fill in the blank] (sid))  

Question at position 33 INSERT INTO is an example of ________ code.DDL DCLDMLTIO

More Practical Tools for Students Powered by AI Study Helper

Join us and instantly unlock extensive past papers & exclusive solutions to get a head start on your studies!