You are writing a query to find all valid charge amounts. A charge amount is considered valid only for the days between two columns. SNAP_START DATE and SNAP_END_DATE. The charges is also considered valid on the SNAP_START_DATE and the SNAP_END_DATE. Assume that these two columns will always store a time of midnight and the SNAP_END_DATE will always come later than SNAP_START_DATE. Which of these expressions would return TRUE only for charge amounts valid on February 14, 2018, and FALSE for all other charge amounts? A. SNAP_START_DATE < '14 FEB 2018' AND '14 FEB 2018' < SNAP_END_DATE B. SNAP_START_DATE <= '14 FEB 2018' AND '14 FEB 2018' <= SNAP_END_DATE C. SNAP_START_DATE > '14 FEB 2018' AND '14 FEB 2018' > SNAP_END_DATE D. SNAP_START_DATE >= '14 FEB 2018' AND '14 FEB 2018' >= SNAP_END_DATE
You are writing a query to find all valid charge amounts. A charge amount is considered valid only for the days between two columns. SNAP_START DATE and SNAP_END_DATE. The charges is also considered valid on the SNAP_START_DATE and the SNAP_END_DATE. Assume that these two columns will always store a time of midnight and the SNAP_END_DATE will always come later than SNAP_START_DATE. Which of these expressions would return TRUE only for charge amounts valid on February 14, 2018, and FALSE for all other charge amounts? A. SNAP_START_DATE < '14 FEB 2018' AND '14 FEB 2018' < SNAP_END_DATE B. SNAP_START_DATE <= '14 FEB 2018' AND '14 FEB 2018' <= SNAP_END_DATE C. SNAP_START_DATE > '14 FEB 2018' AND '14 FEB 2018' > SNAP_END_DATE D. SNAP_START_DATE >= '14 FEB 2018' AND '14 FEB 2018' >= SNAP_END_DATE
Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter7: Introduction To Structured Query Language (sql)
Section: Chapter Questions
Problem 125C: Write a query to display the movie number, movie genre, average cost of movies in that genre, cost...
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Concept explainers
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
Question
You are writing a query to find all valid charge amounts. A charge amount is considered valid only for the days between two columns. SNAP_START DATE and SNAP_END_DATE. The charges is also considered valid on the SNAP_START_DATE and the SNAP_END_DATE. Assume that these two columns will always store a time of midnight and the SNAP_END_DATE will always come later than SNAP_START_DATE. Which of these expressions would return TRUE only for charge amounts valid on February 14, 2018, and FALSE for all other charge amounts?
A. SNAP_START_DATE < '14 FEB 2018' AND '14 FEB 2018' < SNAP_END_DATE
B. SNAP_START_DATE <= '14 FEB 2018' AND '14 FEB 2018' <= SNAP_END_DATE
C. SNAP_START_DATE > '14 FEB 2018' AND '14 FEB 2018' > SNAP_END_DATE
D. SNAP_START_DATE >= '14 FEB 2018' AND '14 FEB 2018' >= SNAP_END_DATE
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