WGU D427 Database Management Applications EXAM Questions & Answers, Well Elaborated | Already Verified Test |100% Verified solutions | Latest!!

9/6/25, 12:21 AM WGU D427 Database Management Applications EXAM Questions & Answers, Well Elaborated | Already Verified Test |100% Verifie…




WGU D427 Database Management Applications
EXAM Questions & Answers, Well Elaborated |
Already Verified Test |100% Verified solutions |
2025\2026 Latest!!

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Terms in this set (64)


The definition of how data in a database will be
Schema
organized.

- Create The basis of interacting with databases can be
- Read defined using the CRUD acronym. What does CRUD
- Update stand for?
- Delete

DATE: YYYY-MM-DD What is the DATE datatype syntax?


DATETIME: YYYY-MM-DD What is the DATETIME datatype syntax?
HH:MM:SS

It will have 3 numbers What does DECIMAL(3,2) indicate?
before the decimal and 2
after.

a series of commands stored on the database. This
allows the reuse of long or detailed queries instead of
Stored Procedures writing them for each use. It also provides a safe way
to deal with sensitive data, especially with those
unfamiliar with SQL syntax.



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involves instructing the DBMS software on what tables
Data definition language
will be in the database, what attributes will be in the
(DDL)
tables, which attributes will be indexed, and so forth.

refers to the four basic operations that can and must
be performed on data stored in any DBMS (or in any
data manipulation
other data storage arrangement, for that matter): data
languages (DMLs)
retrieval, data update, insertion of new records, and
deletion of existing records.

SELECT * What would the SELECT statement look like if you use
FROM CUSTOMER a BETWEEN.
WHERE CUSTNUMB
BETWEEN 1 AND 2;

SELECT * What would the SELECT statement look like if you use
FROM CUSTOMER a IN.
WHERE HQCITY IN
('Atlanta', 'Chicago',
'Washington');

SELECT * What would the SELECT statement look like if you use
FROM CUSTOMER a LIKE.
WHERE HQCITY LIKE
'W%';

A% - The "%" means that What are the two ways of using the LIKE command?
any string of characters
can follow afterwards. The
percent sign represents
zero or more arbitrary
regular characters


A_ - The _ means that there
will be exactly one letter
following the A. The
underscore represents a
single arbitrary regular
character.


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The clause can include the The default order for ORDER BY is ascending. How
term ASC at the end to can you make it descending order?
make ascending explicit or
it can include DESC for
descending order.

SELECT Command to use AVG/SUM/MIN/MAX/COUNT
AVG/SUM/MIN/MAX/CO aggregate functions?
UNT(Column_Name)
FROM SALES
WHERE Name = 'Matt';

o One is that the tables to There are two specifications to make in the SELECT
be joined must be listed in statement to make a join work.
the FROM clause.
o Two is that the join
attributes in the tables
being joined must be
declared and matched to
each other in the WHERE
clause.

SELECT SPNAME Example of JOIN CAUSE.
FROM SALESPERSON,
CUSTOMER
WHERE
SALESPERSON.SPNUM=C
USTOMER.SPNUM

In 1970, Dr. _________ of IBM published in
Communications of the ACM a paper entitled "A
Dr. CODD Relational Model of Data for Large Shared Data
Banks." This paper marked the beginning of the field
of relational databases.

CREATE TABLE Commands to create and drop a table?


DROP TABLE



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