Which of the following operators is used to find all values greater than the highest value returned by a subquery? (refer to the tables in the JustLee Books database.) a. >ALL b. < ALL c. >ANY d.< ANY e. IN
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Which of the following operators is used to find all values greater than the highest value returned by a subquery? (refer to the tables in the JustLee Books
a. >ALL
b. < ALL
c. >ANY
d.< ANY
e. IN
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- Which of the following statements is correct? A table can contain a maximum of only one column marked as unused. You can delete a table by removing all columns in the table. Using the SET UNUSED clause allows you to free up storage space used by a column. None of the above statements are correct.Which of the following SELECT statements displays a list of customer names from the CUSTOMERS table? SELECT customer names FROM customers; SELECT “Names” FROM customers; SELECT firstname, lastname FROM customers; SELECT firstname, lastname, FROM customers; SELECT firstname, lastname, “Customer Names” FROM customers;Which of the following is not a valid SQL statement? CREATE TABLE anothernewtable (newtableid VARCHAR2 (2)); CREATE TABLE anothernewtable (date, anotherdate) AS (SELECT orderdate, shipdate FROM orders); CREATE TABLE anothernewtable (firstdate, seconddate) AS (SELECT orderdate, shipdate FROM orders); All of the above are valid statements.
- Which of the following statements deletes all rows in the HOMEWORK10 table? a. DELETE FROM homework10; b. DELETE . FROM homework10; c. DELETE FROM homework10; d. DELETE FROM homework10 WHERE amid = ; e. Both c and d delete all rows in the HOMEWORK10 table.Which object in the data dictionary enables you to verify DEFAULT column settings? DEFAULT_COLUMNS DEF_TAB_COLUMNS USER_TAB_COLUMNS None of the aboveWhich of the following functions can be used to display the character string FLORIDA in the query results whenever FL is entered in the State field? (refer to the tables in the JustLee Books database.)a. SUBSTRb. NVL2c. REPLACEd. TRUNCe. none of the above
- Which of the following statements is correct? (refer to the tables in the JustLee Books database.)a. The IN comparison operator can’t be used with a subquery that returns only one row of results.b. The equals (=) comparison operator can’t be used with a subquery that returns morethan one row of results.c. In an uncorrelated subquery, statements in the outer query are executed first, and thenstatements in the subquery are executed.d. A subquery can be nested only in the outer query’s SELECT clause.Which of the following SQL statements displays a customer’s name in all uppercase characters? (refer to the tables in the JustLee Books database.)a. SELECT UPPER('firstname', 'lastname')FROM customers;b. SELECT UPPER(firstname, lastname)FROM customers;c. SELECT UPPER(lastname, ',' firstname)FROM customers;d. none of the aboveWhich of the following functions can be used to substitute a value for a NULL value? (refer to the tables in the JustLee Books database.)a. NVLb. TRUNCc. NVL2d. SUBSTRe. both a and df. both a and c
