Question
Which key is used to establish a relationship between
two database tables?Solution
A foreign key in a database links two tables by referencing the primary key of another table, ensuring relational integrity.
Consider the following Python code snippet:
class Employee:
def __init__(self, name, age):
self.name = name
<...You are tasked with analyzing sales data from multiple sources for a quarterly report. The raw data contains missing values and duplicate records. What ...
In requirement analysis, which of the following best defines functional requirements?
In hypothesis testing, what does a p-value less than 0.05 typically indicate ?
Which natural language processing (NLP) technique is best suited for understanding the contextual meaning of words in a sentence?
In the context of data analysis, which of the following best describes trend analysis?
What is the primary objective of Exploratory Data Analysis (EDA) in a data analysis workflow?
A dataset contains "USA," "United States," and "U.S." as country entries. What is the best way to resolve these inconsistencies?
In SQL, which type of JOIN will return all rows from the left table and the matching rows from the right table, filling with NULLs where there is no match?
In the context of time series analysis, the Dickey-Fuller test is used to:
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