Exam 3: Table Creation and Management

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​The DELETE TABLE command can be used to delete all the data stored in a table and release the storage space,yet retain the structure of the table._________________________

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​A column's ____________________ identifies the type of data that can be stored in a column.

(Short Answer)
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​Which of the following is a valid table name?

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If a column is defined as NUMBER(5,2),which of the following is true?​

(Multiple Choice)
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The DROP TABLE command can be used to remove a table and all its data from a database.​

(True/False)
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​The default format for a DATE column is ____________________.

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The CREATE TABLE command is used to create a table in Oracle 12c._________________________​

(True/False)
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The width of a NUMBER column cannot be changed once it contains data._________________________​

(True/False)
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​Which of the following commands will set the MINRETAIL column of the PROMOTION table as unused?

(Multiple Choice)
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Which of the following symbols can be used in a column name?​

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The default format of a DATE column in Oracle 12c is DD-MON-YY.​

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A table name can be up to 30 characters in length.​

(True/False)
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Data manipulation language commands are used to create or modify database tables._________________________​

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The maximum width of a NUMBER column is 25 digits._________________________​

(True/False)
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Structure of the CUSTOMERS table Structure of the CUSTOMERS table    ​ -Which of the following commands will increase the size of the CITY column in the CUSTOMERS table from 12 to 20 and increase size of the LASTNAME column from 10 to 14? ​ -Which of the following commands will increase the size of the CITY column in the CUSTOMERS table from 12 to 20 and increase size of the LASTNAME column from 10 to 14?

(Multiple Choice)
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A DATE column consists of ____________________ bytes.​

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​The ____________________ TABLE command can be used to delete and release the storage space of all data contained in a database table,while still retaining the table's structure.

(Short Answer)
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The INTERVAL datatype can be used to identify a specific interval,or amount,of time.

(True/False)
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Once a column as been set as UNUSED,it cannot be recovered._________________________​

(True/False)
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The CREATE TABLE cannot contain a subquery.​

(True/False)
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