Exam 2: Creating and Modifying Database Tables

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If a user only specifies the time when setting a value for a DATE column,the date portion will default to the current time.

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Up to 6 GB of binary data can be stored in a BLOB column.

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A(n)____________________ constraint is a table constraint that specifies that a column must have a unique value for every table row.

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You use the ____ data type for any column that stores numerical data upon which users may perform arithmetic calculations.

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To log in to a database using SQL*Plus you only need to provide user name and password.

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The CHAR data type stores fixed-length character data up to a maximum size of ____ characters.

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A(n)____________________ is a whole number with no digits on the right side of the decimal point.

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The ____________________ category of data dictionary views shows both the objects in the current user's schema and the objects that the user has privileges to manipulate.

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Which of the following LOB data types does not store the entire large object in the database?

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The VARCHAR2 data type stores variable-length character data up to a maximum of ____________________ characters.

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You can always rename a table.

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Adding a check condition constraint to a table is a(n)____________________ action.

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Which of the following is not required when creating a table?

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Oracle provides a means to disable constraints and then enable them again.Give an example of a situation in which this feature would be useful.

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The data objects within a user schema are called database objects or ____________________.

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What is the default format for a DATE value?

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A composite key is created using a value constraint.

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Using the CHAR data type causes a column value to be padded to the maximum declared size of the column.

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____________________ is the total number of digits both to the left and to the right of the decimal point.

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The VARCHAR2 data type can store up to 4,000 characters.

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