CIS 3050 Bank 1

The following code is an example of a: SELECT CustomerName, CustomerAddress, CustomerCity, CustomerState, CustomerPostalCode FROM Customer_T WHERE Customer_T.CustomerID = (SELECT Order_T.CustomerID FROM Order_T WHERE OrderID = 1008); A) correlated subquery. B) subquery. C) join. D) FULL OUTER JOIN.

B

The following statement is an example of: CREATE TABLE Customer_t ( CustNmbr number(11,0), CreditLimit number(6,2), CustStart date, CustEnd date, PERIOD for Custperiod(CustStart,CustEnd)); A) a materialized view. B) an application time period table. C) a system-versioned table. D) a dynamic view.

B

The MERGE command: A) allows one to combine the INSERT and UPDATE operations. B) allows one to combine the INSERT and DELETE operations. C) joins 2 tables together. D) is always a single table operation.

A

The UNION clause is used to: A) combine the output from multiple queries into a single result table. B) join two tables together to form one table. C) find all rows that do not match in two tables. D) find all rows that are in one table, but not the other.

A

The ________ DBA view shows information about all users of the database in Oracle. A) DBA_USERS B) USERS C) DBA_VIEWS D) DBA_INDEXES

A

The following code would include: SELECT Customer_T.CustomerID,CustomerName, OrderID FROM Customer_T RIGHT OUTER JOIN Order_T ON Customer_T.CustomerID = Order_T.CustomerID; A) all rows of the Order_T Table regardless of matches with the Customer_T Table. B) all rows of the Customer_T Table regardless of matches with the Order_T Table. C) only rows that match both Customer_T and Order_T Tables. D) only rows that don't match both Customer_T and Order_T Tables.

A

A ________ is a temporary table used in the FROM clause of an SQL query. A) correlated subquery B) derived table C) view table D) trigger

B

A join operation: A) brings together data from two different fields. B) causes two tables with a common domain to be combined into a single table or view. C) causes two disparate tables to be combined into a single table or view. D) is used to combine indexing operations.

B

A join that is based upon equality between values in two common columns with the same name and where one duplicate column has been removed is called a(n): A) equi-join. B) natural join. C) multivariate join. D) inner join.

B

A join in which rows that do not have matching values in common columns are still included in the result table is called a(n): A) natural join. B) equi-join. C) outer join. D) union join.

C

A named set of SQL statements that are considered when a data modification occurs are called: A) stored procedures. B) treatments. C) triggers. D) trapdoors.

C

A procedure is: A) stored outside the database. B) given a reserved SQL name. C) called by name. D) unable to be modified.

C

All of the following are part of the coding structure for triggers EXCEPT: A) event. B) condition. C) selection. D) action

C

EXISTS will take a value of ________ if the subquery returns an intermediate results table which contains one or more rows. A) false B) 1 C) true D) undefined

C

SQL provides the ________ technique, which involves placing an inner query within the WHERE or HAVING clause of an outer query. A) grouping B) joining C) subquery D) union

C

A type of join between three tables is called a(n): A) ternary join. B) self-join. C) unnatural join. D) pinned join.

A

The outer join syntax does not apply easily to a join condition of more than ________ tables. A) two B) three C) four D) five

A

A type of query that is placed within a WHERE or HAVING clause of another query is called a: A) master query. B) subquery. C) superquery. D) multi-query.

B

All of the following are guidelines for better query design EXCEPT: A) understand how indexes are used in query processing. B) use a lot of self-joins. C) write simple queries. D) retrieve only the data that you need.

B

In order for two queries to be UNION-compatible, they must: A) both have the same number of lines in their SQL statements. B) both output compatible data types for each column and return the same number of rows. C) both return at least one row. D) both return exactly one row.

B

One major advantage of the outer join is that: A) information is easily accessible. B) information is not lost. C) the query is easier to write. D) information's data type changes.

B

SQL-invoked routines can be: A) part of a DDL statement. B) functions or procedures. C) part of a DCL statement. D) contained within a CREATE statement.

B

The following code would include: SELECT Customer_T.CustomerID,CustomerName, OrderID FROM Customer_T LEFT OUTER JOIN Order_T ON Customer_T.CustomerID = Order_T.CustomerID; A) all rows of the Order_T Table regardless of matches with the Customer_T Table. B) all rows of the Customer_T Table regardless of matches with the Order_T Table. C) only rows that match both Customer_T and Order_T Tables. D) only rows that don't match both Customer_T and Order_T Tables.

B

A materialized view is/are: A) a virtual table created dynamically on request by a user. B) an in-line query. C) copies or replica of data based on queries. D) always an exact copy of the source table.

C

Establishing IF-THEN-ELSE logical processing within an SQL statement can be accomplished by: A) using the if-then-else construct. B) using the immediate if statement. C) using the CASE key word in a statement. D) using a subquery.

C

________ takes a value of TRUE if a subquery returns an intermediate results table which contains one or more rows. A) IN B) HAVING C) EXISTS D) EXTENTS

C

A join in which the joining condition is based on equality between values in the common columns is called a(n): A) equi-join. B) unilateral join. C) natural join. D) both A and C.

D

In SQL, a(n) ________ subquery is a type of subquery in which processing the inner query depends on data from the outer query. A) correlated B) paired C) natural D) inner

A

The following code is an example of a(n): SELECT Customer_T.CustomerID, Order_T.CustomerID, CustomerName, OrderID FROM Customer_T, Order_T WHERE Customer_T.CustomerID = Order_T. CustomerID; A) equi-join. B) subquery. C) Full Outer JOIN. D) Right Outer JOIN.

A

What would the following view contain for values? Create view CustomerOrders as Select CustID, Count(*) as TotOrders, Sum(ordertotal) as Value From customer inner join sale on customer.customer_id = sale.customer_id; A) A listing of all customers in the customer table B) A listing of the customer ID as well as the total number of orders and the total amount spent by the customer C) A listing of the customer ID as well as the total orders D) An error message

B

While triggers run automatically, ________ do not and have to be called. A) trapdoors B) routines C) selects D) updates

B

In which of the following situations would one have to use an outer join in order to obtain the desired results? A) A report is desired that lists all customers who placed an order. B) A report is desired that lists all customers and the total of their orders. C) A report is desired that lists all customers and the total of their orders during the most recent month, and includes customers who did not place an order during the month (their total will be zero). D) There is never a situation that requires only an outer join.

C

The following code would include: SELECT Customer_T.CustomerID, Order_T.CustomerID, CustomerName, OrderID FROM Customer_T, Order_T WHERE Customer_T.CustomerID = Order_T. CustomerID; A) all rows of the Order_T Table regardless of matches with the Customer_T Table. B) all rows of the Customer_T Table regardless of matches with the Order_T Table. C) only rows that match both Customer_T and Order_T Tables. D) only rows that don't match both Customer_T and Order_T Tables.

C

User-defined data types: A) are not allowed in any DBMS. B) are only allowed in Oracle. C) can have defined functions and methods. D) can be used once in a system.

C

A new set of analytical functions added in SQL:2008 is referred to as: A) OLAF functions. B) MOLAP functions. C) average functions. D) OLAP functions

D

All of the following are advantages of SQL-invoked routines EXCEPT: A) flexibility. B) efficiency. C) sharability. D) security.

D

An operation to join a table to itself is called a(n): A) sufficient-join. B) inner join. C) outer join. D) self-join.

D

If the DBA wishes to describe all tables in the database, which data dictionary view should be accessed in Oracle? A) DBA_TAB_PRIVS B) DBA_TAB_COMMENTS C) DBA_TABLE_LABEL D) DBA_TABLES

D

The ________ operator is used to combine the output from multiple queries into a single result table. A) Intersect B) Divide C) Collate D) Union

D

The most commonly used form of join operation is the: A) outer join. B) union join. C) equi-join. D) natural join.

D

When a user creates a virtual table it is called a(n): A) materialized view. B) virtual table. C) inline view. D) dynamic view.

D

________ use the result of the inner query to determine the processing of the outer query. A) Correlated subqueries B) Outer subqueries C) Inner subqueries D) Subqueries

D