单选题Which operator can be used with a multiple-row subquery?（）A =B LIKEC BETWEEND NOT INE ISF <>

A single row subquery can retrieve only one column and one row.

A single row subquery can retrieve only one row but many columns.

A multiple row subquery can retrieve multiple rows and multiple columns.

A multiple row subquery can be compared by using the “>” operator.

A single row subquery can use the IN operator.

A multiple row subquery can use the “=” operator.

Create groups of data

Sort data in a specific order

Convert data to a different format

Retrieve data based on an unknown condition

A single row subquery can retrieve data from only one table.

A SQL query statement cannot display data from table B that is referred to in its subquery, unless table B is included in the main query's FROM clause.

A SQL query statement can display data from table B that is referred to in its subquery, without including table B in its own FROM clause.

A single row subquery can retrieve data from more than one table.

A single row subquery cannot be used in a condition where the LIKE operator is used for comparison.

A multiple-row subquery cannot be used in a condition where the LIKE operator is used for comparison.

The LIKE operator cannot be used with single-row subqueries 

The NOT IN operator is equivalent to IS NULL with single-row subqueries 

=ANY and =ALL operators have the same functionality in multiple-row subqueries 

The NOT operator can be used with IN, ANY, and ALL operators in multiple-row subqueries 

The main query executes with the first value returned by the subquery.

The main query executes with the last value returned by the subquery.

The main query executes with all the values returned by the subquery.

The main query fails because the multiple-row subquery cannot be used with the comparison operator.

You cannot define a multiple-row subquery in the WHERE clause of a SQL query.

A subquery should retrieve only one row.

A subquery can retrieve zero or more rows.

A subquery can be used only in SQL query statements.

Subqueries CANNOT be nested by more than two levels.

A subquery CANNOT be used in an SQL query statement that uses group functions.

When a subquery is used with an inequality comparison operator in the outer SQL statement, the column list in the SELECT clause of the subquery should contain only one column.

a schema object

a subquery that can contain an ORDER BY clause

another name for a view that contains group functions

a subquery that is part of the FROM clause of another query

A subquery can retrieve zero or more rows

Only two subqueries can be placed atone level

A subquery can be used only in SQL query statements

A subquery can appear on either side of a comparison operator

There is no limit on the number of subquery levels in the WHERE clause of a SELECT statement

A main query can have more than one subquery.

A subquery can have more than one main query.

The subquery and main query must retrieve data from the same table.

The subquery and main query can retrieve data from different tables.

Only one column or expression can be compared between the subquery and main query.

Multiple columns or expression can be compared between the subquery and main query.

=

LIKE

BETWEEN

NOT IN

IS

<>

in the INTO clause of an INSERT statement

in the FROM clause of a SELECT statement

in the GROUP BY clause of a SELECT statement

in the WHERE clause of a SELECT statement

in the SET clause of an UPDATE statement

in the VALUES clause of an INSERT statement

A single row subquery can retrieve data from only one table.

A SQL query statement cannot display data from table B that is referred to in its subquery, unless table B is included in the main query's FROM clause.

A SQL query statement can display data from table B that is referred to in its subquery, without including B in its own FROM clause.

A single row subquery can retrieve data from more than one table.

A single row subquery cannot be used in a condition where the LIKE operator is used for comparison.

A multiple-row subquery cannot be used in an INSERT statement to insert multiple rows at a time.

lslp -a

qchk -A

enq -s ALL

lpstat -p ALL