WGU C170 Basic SQL Questions and
Answers Rated A
An alias is especially useful when a table must be joined to itself in a(n) ___________________
query. ✔✔recursive
The ___________ condition is generally composed of a
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WGU C170 Basic SQL Questions and
Answers Rated A
An alias is especially useful when a table must be joined to itself in a(n) ___________________
query. ✔✔recursive
The ___________ condition is generally composed of an equality comparison between the foreign
key and the primary key of related tables. ✔✔join
A database language enables the user to create database and table structures to perform basic data
management chores. ✔✔TRUE
______________________ is the process the DBMS uses to verify that only registered users
access the database. ✔✔Authentication
Only numeric data types can be added and subtracted in SQL. ✔✔FALSE
A table can be deleted from the database by using the _______________________ command.
✔✔DROP TABLE
To list all the contents of the PRODUCT table, a user would use
________________________________ ✔✔SELECT * FROM PRODUCT
All SQL commands must be issued on a single line. ✔✔FALSE
Mathematical operators cannot be used to place restrictions on character-based attributes.
✔✔FALSE
A(n) _____________________ is a query that is embedded (or nested) inside another query.
✔✔subquery
"The query to join the P_DESCRIPT and P_PRICE fields from the PRODUCT table and the
V_NAME, V_AREACODE, V_PHONE, and V_CONTACT fields from the VENDOR table
where the values of V_CODE match is
________________________________________________ ✔✔"SELECT P_DESCRIPT,
P_PRICE, V_NAME, V_CONTACT, V_AREACODE, V_PHONE FROM PRODUCT,
VENDOR WHERE PRODUCT.V_CODE = VENDOR.V_CODE;"
In the SQL environment, the word ___________ covers both questions and actions. ✔✔query
The SQL aggregate function that gives the total of all values for a selected attribute in a given
column is _______ ✔✔SUM
String comparisons are made from left to right. ✔✔TRUE
Date procedures are often more software-specific than other SQL procedures. ✔✔TRUE
To make the output more readable, the SQL standard permits the use of aliases for any column in
a _____________ statement. ✔✔SELECT
A(n) _________________ order sequence is a multilevel ordered sequence that can be created
easily by listing several attributes, separated by commas, after the ORDER BY clause.
✔✔cascading
Data type selection is usually dictated by the nature of the data and by the intended use. ✔✔TRUE
The ANSI prescribes a standard SQL-the current full
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