Oracle - Miscellaneous Datatypes MCQ

Oracle – Miscellaneous Datatypes

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1. What is the primary purpose of the BOOLEAN datatype in Oracle?

Storing character data

Storing binary data

Storing dates and times

Representing true or false values

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2. Which datatype is used to store binary data in Oracle?

ROWID

UROWID

RAW

BOOLEAN

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3. What is the primary use of the UROWID and ROWID datatypes in Oracle?

Storing numeric data

Storing binary data

Storing character data

Identifying rows in a table

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4. How can you obtain ROWIDs in Oracle?

Using the INSERT statement

Using the SELECT statement

Using the DELETE statement

Using the UPDATE statement

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5. What is the purpose of LOB datatypes in Oracle?

Storing numeric data

Storing large binary data objects

Storing character data

Storing boolean values

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6. What are LOB locators used for in Oracle?

Identifying the location of LOBs

Sorting LOBs

Storing LOB data

Deleting LOB data

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7. What is the difference between an empty LOB and a NULL LOB in Oracle?

Empty LOBs are used for temporary storage, while NULL LOBs are used for permanent storage

An empty LOB contains no data, while a NULL LOB is a missing LOB

There is no difference between empty and NULL LOBs

An empty LOB is a missing LOB, while a NULL LOB contains no data

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8. How can you write data into a LOB in Oracle?

Using the DELETE statement

Using the INSERT statement

Using the SELECT statement

Using the UPDATE statement

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9. How can you read data from a LOB in Oracle?

Using the SELECT statement

Using the INSERT statement

Using the UPDATE statement

Using the DELETE statement

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10. What is the primary use of BFILEs in Oracle?

Storing binary data

Storing numeric data

Storing large binary data objects

Storing character data

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11. What is the difference between SecureFiles and BasicFiles in Oracle?

SecureFiles are used for temporary LOBs, while BasicFiles are used for permanent LOBs

BasicFiles are simpler to use than SecureFiles

There is no difference between SecureFiles and BasicFiles

SecureFiles provide more security for LOB data

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12. What are temporary LOBs used for in Oracle?

Permanent storage of LOB data

Temporary storage of LOB data

Storage of character data

Secure storage of LOB data

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13. What are native LOB operations in Oracle?

Operations performed on LOBs by external applications

Operations performed using external libraries

Operations performed in the database kernel

Operations performed by administrators

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14. What are LOB conversion functions in Oracle used for?

Converting LOBs to BLOBs

Converting LOBs to NCLOBs

Converting LOBs to CLOBs

Converting LOBs to BFILEs

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15. What are predefined object types in Oracle used for?

Storing dates and times

Storing binary data

Defining custom data structures

Storing character data

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16. What is the XMLType type in Oracle primarily used for?

Storing numeric data

Storing character data

Storing XML data

Storing binary data

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17. What are the URI types in Oracle used for?

Storing numeric data

Representing universal resource identifiers

Storing character data

Storing binary data

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18. What is the primary use of the Any types in Oracle?

Storing binary data

Storing numeric data

Storing any type of data

Storing character data

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Oracle – Miscellaneous Datatypes MCQ