Section 1
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51)One way to specify all of the columns of a table is to use the special character * after the keyword ________.
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Cards (60)
Section 1
(50 cards)
51)One way to specify all of the columns of a table is to use the special character * after the keyword ________.
51)SELECT
62)Given the table CUSTOMER(CustID, Name, PhoneNum, AcctBalance), write the standard SQL query to retrieve the Name and Phone Number of customers whose name begins with 'S'.
62) SELECT Name, PhoneNum FROM CUSTOMER WHERE Name LIKE 'S%';
52)Conditions after the ________ require quotes around values for Char and VarChar columns, but no quotes for Integer and Numeric columns.
52)WHERE
8)Referential integrity constraints using the ON DELETE NO ACTION phrase must be explicitly stated when the table is created using the CREATE TABLE statement.
8)FALSE
18)A subquery is appropriate if the final result contains only data from a single table.
18)TRUE
5)For a column to be defined as the primary key using table constraints, the column must have been given the property NULL.
5)FALSE
29)Which of the following SQL commands would be used to remove both the data and the table structure of a table named STUDENT? 29) _______
B)DROP TABLE STUDENT;
11)In SQL, the WHERE clause is used to specify which columns will be included in the result.
11)FALSE
33)Conditions after the WHERE keyword require single quotes around the value for columns that have which data type? 33) _______
E)both A and B A)Integer B)VarChar
31)Which SQL keyword is used to eliminate duplicate rows in the results of a SQL SELECT query? 31) _______
D)DISTINCT
53)Multiple tables can be queried using either subqueries or ________.
53)joins
35)Which symbol is used in standard SQL as a wildcard to represent a single, unspecified character? 35) _______
A)_ (underscore)
7)Referential integrity constraints can be created using the ON DELETE phrase when the table is created using the CREATE TABLE statement.
7)TRUE
28)Which of the following cannot be done using the CONSTRAINT phrase?
D)All of A, B and C can be done using the CONSTRAINT phrase
17)Data from a maximum of three tables can be combined through the use of subqueries in SQL.
17)FALSE
49)A data type ________ would indicate a variable-length character with maximum length 75.
49)VarChar(75)
4)When using SQL to create a table, specifying a data type of Char(10) indicates a fixed length field of 10 characters.
4) TRUE
25)Which of the following is not a standard data type used in SQL? 25) _______
B)text
12)In SQL, to refer to a range in a WHERE clause, use the WITHIN keyword.
12)FALSE
10)To force the DBMS to remove duplicate rows from the results of a SQL SELECT query, the keyword DISTINCT must be used.
10)TRUE
9)The result for SELECT statements in SQL is a relation unless the result is a single number.
9)FALSE
26)Which of the following is not true about primary keys? 26) _______
D)Primary keys must be a single attribute.
3)When using SQL to create a table, specifying the NULL property for a column indicates that only null values may be stored in that column.
3) False
60)Explain the two methods for defining a primary key using SQL.
60)A primary key may be defined by either the CREATE TABLE column description method or the CONSTRAINT phrase method. To create a primary key using the CREATE TABLE column description method, the primary key must be a single attribute. For the primary key attribute, the column property is specified to be PRIMARY KEY. There can be only one attribute specified as PRIMARY KEY with the CREATE TABLE column description method. This means that the creation of a composite key requires the use of the CONSTRAINT phrase method. Defining a primary key using the CONSTRAINT phrase requires that the column(s) that will serve as the primary key must have been defined as NOT NULL. Using the CONSTRAINT phrase method, the primary key is defined by adding a constraint to the table using a CONSTRAINT phrase after the table columns have been defined. The CONSTRAINT phrase names the column(s) that will be the table's primary key. The structure of the CONSTRAINT phrase is: CONSTRAINT constraintname PRIMARY KEY (column names)
55)The values of existing data can be modified using the powerful SQL ________ command, which can be used to change several column values at once.
Update
50)A data type ________ means that values consist of seven decimal numbers with two numbers assumed to the right of the decimal point.
50)Numeric(7,2)
14)In SQL, the order of the rows that result from a SELECT statement can be set using the SORT BY phrase.
14)FALSE
20)Using standard SQL, unmatched rows will not appear in the result of a join.
20)TRUE
30)The order of the columns returned by a SQL SELECT statement are determined by the: 30) _______
E)order they are listed in following SELECT.
6)If you need to create a primary key that is a composite key using SQL, the key may be defined when the table is created using the CREATE TABLE statement.
6)TRUE
36)Which symbol is used in standard SQL as a wildcard to represent a series of one or more unspecified characters? 36) _______
C)% (percent sign)
24)Which of the following data types used in SQL would define a numeric field of the pattern 99.99? 24) _______
B)numeric(4,2)
27)A composite primary key can be defined using the CONSTRAINT phrase in which SQL command? 27) _______
D)CREATE TABLE
34)Which of the following is the correct SQL clause to restrict the results of a SELECT query to only records that have a value in the range of 10 to 50 in the Hours column? 34) _______
E)WHERE Hours BETWEEN 10 AND 50
22)The ON DELETE CASCADE referential integrity constraint does not apply when rows are deleted using the SQL DELETE command.
22)FALSE
19)The basic idea of a join is to combine the contents of two or more relations into a new relation.
19)TRUE
47)SQL was developed by the ________ in the late 1970s.
47)IBM Corporation
2)When using SQL to create a table, a column is defined by declaring, in the following order, the items: data type, column name, and properties.
2) False
48)The keyword(s) ________ means that a value must be supplied before a new row can be created.
48)NOT NULL
16)Standard SQL does not allow built-in functions to be used in a WHERE clause.
16)TRUE
21)Values of existing data can be changed using SQL through the CHANGE command.
21)FALSE
1)SQL is a data sublanguage, not a complete programming language.
1) True
23)Which of the following data types used in SQL would define a fixed-length text field of 10 characters? 23) _______
B)char(10)
32)Which SQL keyword is used to specify a condition that rows must meet to be included in the results of an SQL SELECT query? 32) _______
B)WHERE
)What are SQL built-in functions?
63)SQL built-in functions manipulate the results of a SQL SELECT statement. The built-in functions for standard SQL are COUNT, SUM, AVG, MAX, and MIN. The COUNT function counts the number of rows in the result. The SUM function totals the values in a number-oriented field. The AVG function calculates the mean of the values in a number-oriented field. The MAX function determines the highest value, and the MIN function determines the lowest value, in a number-oriented field.
15)The SUM built-in function in SQL is used to total the values in a numeric column.
15)TRUE
49)A data type ________ would indicate a variable-length character with maximum length 75.
49)VarChar(75)
13)In SQL, the LIKE keyword can be used to select partial values.
13)TRUE
54)When using SQL, there are three data modification operations: ________, ________,and ________.
54)INSERT; MODIFY; DELETE
61)Given the table CUSTOMER(CustID, Name, PhoneNum, AcctBalance), write the standard SQL query to retrieve the Name and Phone Number of customers with a balance greater than 50.
61) SELECT Name, PhoneNum FROM CUSTOMER WHERE AcctBalance > 50;
Section 2
(10 cards)