A. Both SQL and /SQL*plus allow manipulation of values in the database.
B. /SQL* Plus recognizes SQL satement and sends them to the server; SQL is the Oracle proprietary interface for executing SQL statements.
C. /SQL* Plus language for communicating with the Oracle server to access data; SQL recognizes SQL statements and sends them to the server.
D. /SQL manipulates data and table definition in the database; /SQL* Plus does not allow manipulation of values in the database.
您可能感兴趣的试卷
你可能感兴趣的试题
A. You can use aggregate functions in any clause of a SELECT statement.
B. You can use aggregate functions only in the column list of the select clause and in the WHERE clause of a SELECT statement.
C. You can mix single row columns with aggregate functions in the column list of a SELECT statement by grouping on the single row columns.
D. You can pass column names, expressions, constants, or functions as parameter to an aggregate function.
E. You can use aggregate functions on a table, only by grouping the whole table as one single group.
F. You cannot group the rows of a table by more than one column while using aggregate functions.
You need to perform these tasks:
1. Create and assign a MANAGER role to Blake and Clark
2. Grant CREATE TABLE and CREATE VIEW privileges to Blake and Clark Which set of SQL statements achieves the desired results?()
A. CREATE ROLE manager; GRANT create table, create view TO manager; GRANT manager TO BLACK, CLARK;
B. CREATE ROLE manager; GRANT create table, create voew TO manager; GRANT manager ROLE TO BLACK, CLARK;
C. GRANT manager ROLE TO BLACK, CLARK; GRANT create table, create voew TO BLACK CLARK; ***MISSING***
A. SELECT
B. DELETE
C. EXECUTE
D. ALTER TABLE
E. CREATE TABLE
A. SELECT TO_CHAR(TO_DATE('19-Mar-2001', 'DD-Mon-YYYY'), 'fmDdspth "of" Month YYYY fmHH:MI:SS AM') NEW_DATE FROM dual;
B. SELECT TO_CHAR(TO_DATE('19-Mar-2001', 'DD-Mon-YYYY'), 'Ddspth "of" Month YYYY fmHH:MI:SS AM') NEW_DATE HH:MI:SS AM') NEW _ DATE FROM dual;
C. SELECT TO_CHAR(TO_DATE('19-Mar-2001', 'DD-Mon-YYYY'), 'fmDdspth "of" Month YYYY NEW _ DATE FROM dual;
D. SELECT TO_CHAR(TO_DATE('19-Mar-2001', 'DD-Mon-YYYY), 'fmDdspth "of" Month YYYYfmtHH:HI:SS AM')NEW_DATE FROM dual;
The EMPLOYEES table contains these columns:
You need to write a query that will produce these results:
1. Display the salary multiplied by the commission_pct.
2. Exclude employees with a zero commission_pct.
3. Display a zero for employees with a null commission value.
Evaluate the SQL statement:
What does the statement provide?()
A. All of the desired results
B. Two of the desired results
C. One of the desired results
D. An error statement
A. Create groups of data
B. Sort data in a specific order
C. Convert data to a different format
D. Retrieve data based on an unknown condition
A. WHERE
B. HAVING
C. RESTRICT
D. GROUP BY
E. ORDER BY
A. The two statements produce identical results.
B. The second statement returns a syntax error.
C. There is no need to specify DESC because the results are sorted in descending order by default.
D. The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
A. INSERT
B. UPDATE
C. SELECT
D. DESCRIBE
E. DELETE
F. RENAME
A. none
B. DELETE, INSERT,SELECT
C. ALTER, DELETE, INSERT, SELECT
D. DELETE, INSERT, SELECT, UPDATE
最新试题
Examine these statements:CREATE ROLE registrarGRANT UPDATE ON dtudent_grades TO registrar;GRANT registrar to user1, user2, user3;What does this set of SQL statements do? ()
Which constraint can be defined only at the column level? ()
For which action can you use the TO_DATE function? ()
Which statement correctly describes SQL and /SQL*Plus? ()
Which two statements about subqueries are true? ()
The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this? ()
A SELECT statement can be used to perform these three functions:1. Choose rows from a table.2. Choose columns from a table3. Bring together data that is stored in different tables by creating a link between them. Which set of keywords describes these capabilities? ()
You need to design a student registration database that contains several tables storing academic information.The STUDENTS table stores information about a student. The STUDENT_GRADES table storesinformation about the student's grades. Both of the tables have a column named STUDENT_ID. The STUDENT_ID column in the STUDENTS table is a primary key.You need to create a foreign key on the STUDENT_ID column of the STUDENT_GRADES table thatpoints to the STUDENT_ID column of the STUDENTS table. Which statement creates the foreign key?()
Which four are types of functions available in SQL? ()
Which is a valid CREATE TABLE statement? ()