Exam 3: Tables and Queries in Relational Databases

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It is best to copy a query if you need a similar query,but with different criteria,rather than to start from scratch.

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You can save time and help prevent errors when you ________ data from an external source.

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Access does not require that every table has a primary key.

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What is not true about field names?

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When you import data,where can you not store it?

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How many characters can be stored in a field with a Short Text data type?

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It is safe to change data in a query since you are only changing a temporary copy of the data,not the underlying data in the table.

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One advantage of establishing relationships between tables is so you can combine fields from more than one table in a query or report.

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What field property helps to make sure that correct data is entered?

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What is not true about data types?

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In table relationships,the primary key is normally joined to a ________ key.

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When you need a query to return entries based on any of a set of criteria,then you would use the ________ condition.

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It is best when designing a query to add all the fields from a table in case you need them later.

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What option automatically deletes records in related tables that match the primary key?

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The ________ field type makes a good primary key.

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Text you add to the criteria row in a query is case sensitive,so be careful or you may get unexpected results.

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Which of the following cannot be imported from one Access database into another Access database?

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Match the following terms with their description:
Cascade Update
Deletes records in related fields that match the primary key
Referential Integrity
Increases by one each time a record is added
Cascade Delete
When the same data is stored in two or more tables
Correct Answer:
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Premises:
Responses:
Cascade Update
Deletes records in related fields that match the primary key
Referential Integrity
Increases by one each time a record is added
Cascade Delete
When the same data is stored in two or more tables
AutoNumber
Rules which preserve table relationships when key values change
Data Redundancy
Changes key value in related tables if key value in primary table is changed
(Matching)
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One way to fix the problem that exists if you add a table with 10 records to a query and add an unrelated table with 4 records to the same query is to add ________ lines if there are common fields.

(Short Answer)
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You can easily ________ your data by using a multitable query.

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