Exam 6: Updating Data

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To add data from an existing table to a new table,use a SELECT command in a(n)____ command.​

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C

To sort rows in a specific order,use the ____________________ clause with the desired sort key(s).​

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ORDER BY​

You can use the existing value in a column and a calculation to update a value.

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True

The ____ command is permanent.​

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You can use the ____ command to delete an entire table and its data.​

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When you add a new column to a table,the default for Oracle,SQL Server,and Access is to accept null values.

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With SQL,you can change a table's structure by using the ____________________ command.​

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The DROP TABLE command creates an empty table.

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You cannot commit and roll back data in SQL Server.

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In Access,use the Documenter tool to show the layout of a table.

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In order to use the COMMIT command in Oracle,you need to clear the check mark from the ____ check box.​

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To permanently remove both a table and its data,you must issue both a DROP TABLE command and a DELETE command.

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There are table structure changes that are beyond the capabilities of SQL.

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In a transaction,if any update cannot be completed,execute the ____________________ command and discontinue the updates for the current transaction.​

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____ is the default transaction mode in Oracle and commits each action query as soon as the user executes the query.​

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Access does not support the COMMIT or ROLLBACK commands.

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You use the ____________________ command to remove rows from a table.​

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In some cases,you might need to change a table's structure in ways that are beyond the capabilities of your DBMS.When that happens,use the RESTRUCTURE command to redesign the table.

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In a transaction,it is acceptable if some steps fail.

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You can use REMOVE ROW to remove a row from a table.

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