Exam 10: Basic Data Management

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The ____ statement allows you to change column values in existing rows in a table.

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Database changes are undone using a(n)____________________ statement.

(Short Answer)
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DDL statements make permanent changes to the database and cannot be undone (rolled back).

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The ____ parameter for the SET TRANSACTION forces all queries to see a snapshot of data prior to the start of a transaction,regardless of how many DML statements are within a transaction.

(Multiple Choice)
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A transaction starts whenever a DML statement is issued.

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A ____ INSERT statement adds to more than a single table,using a single INSERT statement.

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The ____________________ statement makes pending changes permanent for an existing transaction in the current session.

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Describe the syntax for the single table INSERT statement.

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The SET TRANSACTION statement is mandatory for any given transaction.

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Typically,directory objects are used for external tables.

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Database changes are permanently stored to a database using the ____ statement.

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The ____________________ statement allows existing rows in a table to be changed.

(Short Answer)
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You can populate an external table using Oracle 10g DML commands.

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The ____________________ statement removes pending changes (not yet committed)for an existing transaction in the current session.

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What does ROLLBACK do?

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External tables are read-only,but requiring read and write privileges in the directory they are created in.

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An external table can be created and loaded using a(n)____ subquery clause.

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Data warehouses might benefit from the use of external tables.

(True/False)
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You can change data in tables using ____ statements.

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A transaction is only complete when a COMMIT or ROLLBACK statement is executed or the ____ DDL statement executes.

(Multiple Choice)
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