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Data Management-Applications Questions and Correct Answers Latest Update, Graded A+

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  • Data Management Applications

Which command creates a database only if it does not already exist? o :## CREATE DATABASE IF NOT EXISTS db_name; SELECT PRODNUM, SUM(QUANTITY)FROM SALESPERSONWhich line, when added to the end of the statement, returns the total number of each kind of product by product number? o :## GROUP BY...

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  • August 22, 2024
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Data Management-Applications
Questions and Correct Answers
Latest Update, Graded A+

Which command creates a database only if it does not already exist?

o :## CREATE DATABASE IF NOT EXISTS db_name;



SELECT PRODNUM, SUM(QUANTITY)FROM SALESPERSONWhich line, when added to

the end of the statement, returns the total number of each kind of product by

product number?

o :## GROUP BY PRODNUM;



Which data definition language statement affects databases or objects in them?

o :## ALTER



Which two SQL data types can represent images or sounds?

o :## Binary, Tinyblob



Which method creates an empty copy of a table and then populates it from the

original table?

o :## CREATE TABLE ... LIKE followed by INSERT INTO ... SELECT :



ALTER TABLE tbl_name action [, action ] ... ;What does this syntax allow?



Master01: DO NOT COPY AND PASTE!! August 22, 2024 Latest Update

, 2|Page : 2024 | Grade A+


o :## Dropping indexes, Changing column data



What is the correct syntax to create an index to be built on the city field based on

the database information?

o :## ALTER TABLE 'Salesperson' ADD INDEX 'city_index' (citycity)



Which clause in a CREATE TABLE statement creates an index on a field?

o :## INDEX index_name (index_columns)



A database administrator needs to modify an index on the CUSTOMER table called

IDX_NAME because there are multiple customers with the same name. It has been

determined that it would be desirable to modify the index to also include the

telephone number.Which command line will modify the IDX_NAME index on the

CUSTOMER table to include both NAME and TELEPHONE as part of the index?

o :## ALTER INDEX IDX_NAME ON CUSTOMER(NAME, TELEPHONE);



Which syntax is the correct way to use the DROP INDEX command to drop a primary

key from a table?

o :## DROP INDEX PRIMARYPRIMARY ON tbl_name ;



When a product is deleted from the product table, all corresponding rows for the

product in the pricing table are deleted automatically as well.What is this

referential integrity technique called?

o :## Cascaded delete




Master01: DO NOT COPY AND PASTE!! August 22, 2024 Latest Update

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