Question 1

If a date column is being used for comparison against the search condition,the search condition is enclosed in double quotation marks._________________________

Accepted Answer

single

Question 2

A(n)clause identifies what must exist or a requirement that must be met for a record to be included in the results of a query._________________________

Accepted Answer

condition

Question 3

The process of specifying that certain rows be displayed in the results of a query is known as selection._________________________

Accepted Answer

Selection is the process of choosing or selecting certain rows to be displayed in the results of a query.

Question 4

The <>,!=,or ^= operators can be used to search for values that are not equivalent to the specified search condition._________________________

Accepted Answer

The operators <>, !=, and ^= all mean "not equivalent" or "not equal to". Therefore, they can be used to search for values that do not match a certain condition.

Question 5

The LIKE operator is used to indicate a range of values._________________________

Accepted Answer

BETWEEN,BETWEEN ...AND

Question 6

When sorted in descending order,NULL values will be listed first in the results,unless the user specifies otherwise.​

Accepted Answer

When sorting in descending order, NULL values are listed first by default, unless the user uses a specific syntax (such as "ORDER BY ... NULLS LAST") to override this behavior.

Question 7

A search condition can be specified in a(n)SELECT clause._________________________

Accepted Answer

WHERE

Question 8

Including the keywords NULLS FIRST in the ORDER BY clause will result in NULL values appearing first in the results,regardless of the specified sort sequence.​

Accepted Answer

Including NULLS FIRST in the ORDER BY clause will ensure that NULL values are sorted first, regardless of the specified sort sequence.

Question 9

The IN logical operator is similar to using OR._________________________​

Accepted Answer

The IN logical operator is used to compare a value to a list of literal values that have been specified. This is similar to using multiple OR conditions, where each condition checks for a match with one of the specified values.

Question 10

If a numeric column is being used for comparison against the search condition,the search condition is enclosed in single quotation marks._________________________

Accepted Answer

is not enclosed,isn't enclosed

Question 11

The SORT BY clause is used to present query results in a specific order.​

Accepted Answer

The answer of The SORT BY clause is used to...

Question 12

An ORDER BY clause can reference a column to be used for sorting based upon its position in the database table.​

Accepted Answer

An ORDER BY clause can only reference a column by its name or alias, not its position in the table.

Question 13

The maximum number of columns that can be used to sort the results of a query is 52.​

Accepted Answer

The maximum number of columns that can be used to sort the results of a query is not specified. It depends on the database management system being used and the resources available. However, sorting on a large number of columns can have performance implications and is generally not recommended.

Question 14

By default,query results are sorted in ascending order based upon the column specified in the ORDER BY clause.​

Accepted Answer

By default, query results are sorted in ascending order based upon the column specified in the ORDER BY clause.

Question 15

A column alias that has been defined in the SELECT clause of a SELECT statement cannot be referenced in an ORDER BY clause.​

Accepted Answer

A column alias defined in the SELECT clause can indeed be referenced in the ORDER BY clause of the same SELECT statement, allowing for sorting based on the alias.

Question 16

An ORDER BY clause can reference a column to be used for sorting based upon its position in the SELECT clause.​

Accepted Answer

In SQL, the ORDER BY clause can indeed reference a column by its position in the SELECT clause, allowing for sorting based on the order columns appear in the SELECT statement.

Question 17

​To find rows containing a NULL value in a specified column,you must use the search condition of = NULL.

Accepted Answer

The search condition to find NULL values in a specified column is not = NULL, but rather IS NULL. The = operator does not work with NULL values because NULL is not a value, but a placeholder indicating the absence of a value. Therefore, the correct syntax is column_name IS NULL.

Question 18

Oracle12c is case sensitive when comparing data to a search condition._________________________

Accepted Answer

Oracle12c is case sensitive when comparing data to a search condition. This means that uppercase and lowercase letters are treated as distinct values.

Question 19

A greater than or equal to comparison is indicated by the symbols =>._________________________

Accepted Answer

>=

Question 20

The first column listed in an ORDER BY clause is considered the primary sort.​

Accepted Answer

The first column listed in an ORDER BY clause is indeed considered the primary sort. Any subsequent columns listed will be used as tie-breakers for the primary sort column.

Quiz 8: Restricting Rows and Sorting Data

If a date column is being used for comparison against the search condition,the search condition is enclosed in double quotation marks._________________________​

A(n)clause identifies what must exist or a requirement that must be met for a record to be included in the results of a query._________________________​

The process of specifying that certain rows be displayed in the results of a query is known as selection._________________________​

The <>,!=,or ^= operators can be used to search for values that are not equivalent to the specified search condition._________________________​

The LIKE operator is used to indicate a range of values._________________________​

When sorted in descending order,NULL values will be listed first in the results,unless the user specifies otherwise.​

A search condition can be specified in a(n)SELECT clause._________________________​

Including the keywords NULLS FIRST in the ORDER BY clause will result in NULL values appearing first in the results,regardless of the specified sort sequence.​

The IN logical operator is similar to using OR._________________________​

If a numeric column is being used for comparison against the search condition,the search condition is enclosed in single quotation marks._________________________​

The SORT BY clause is used to present query results in a specific order.​

An ORDER BY clause can reference a column to be used for sorting based upon its position in the database table.​

The maximum number of columns that can be used to sort the results of a query is 52.​

By default,query results are sorted in ascending order based upon the column specified in the ORDER BY clause.​

A column alias that has been defined in the SELECT clause of a SELECT statement cannot be referenced in an ORDER BY clause.​

An ORDER BY clause can reference a column to be used for sorting based upon its position in the SELECT clause.​

​To find rows containing a NULL value in a specified column,you must use the search condition of = NULL.

Oracle12c is case sensitive when comparing data to a search condition._________________________​

A greater than or equal to comparison is indicated by the symbols =>._________________________​

The first column listed in an ORDER BY clause is considered the primary sort.​

If a date column is being used for comparison against the search condition,the search condition is enclosed in double quotation marks._________________________

A(n)clause identifies what must exist or a requirement that must be met for a record to be included in the results of a query._________________________

The process of specifying that certain rows be displayed in the results of a query is known as selection._________________________

The <>,!=,or ^= operators can be used to search for values that are not equivalent to the specified search condition._________________________

The LIKE operator is used to indicate a range of values._________________________

When sorted in descending order,NULL values will be listed first in the results,unless the user specifies otherwise.

A search condition can be specified in a(n)SELECT clause._________________________

Including the keywords NULLS FIRST in the ORDER BY clause will result in NULL values appearing first in the results,regardless of the specified sort sequence.

The IN logical operator is similar to using OR._________________________

If a numeric column is being used for comparison against the search condition,the search condition is enclosed in single quotation marks._________________________

The SORT BY clause is used to present query results in a specific order.

An ORDER BY clause can reference a column to be used for sorting based upon its position in the database table.

The maximum number of columns that can be used to sort the results of a query is 52.

By default,query results are sorted in ascending order based upon the column specified in the ORDER BY clause.

A column alias that has been defined in the SELECT clause of a SELECT statement cannot be referenced in an ORDER BY clause.

An ORDER BY clause can reference a column to be used for sorting based upon its position in the SELECT clause.

To find rows containing a NULL value in a specified column,you must use the search condition of = NULL.

Oracle12c is case sensitive when comparing data to a search condition._________________________

A greater than or equal to comparison is indicated by the symbols =>._________________________

The first column listed in an ORDER BY clause is considered the primary sort.