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Find unmatched queries provide a subset of the data that answers most questions that users ask about the data in their databases.

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What summarizes a data source into a grid of rows and columns?


A) Crosstab query
B) Append query
C) Make table query
D) Find duplicates table

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Why should you backup your database before running an action query?


A) Action queries are irreversible.
B) Action queries are reversible.
C) Action queries are temporary.
D) Action queries add extra tables to the database.

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Duplicate values should always be deleted from a database table.

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Match the following terms with their meanings:

Premises
crosstab query
action query
find duplicate query
find unmatched query
Responses
adds,edits,or deletes data in a database
compares records in two related tables and displays the records found in one table but not the other
usually created to show trends in values over time
helps identify duplicate values in a table

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crosstab query
action query
find duplicate query
find unmatched query

An append query is used to update or change data automatically based on criteria that you specify.

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To test an update query before running the query,what should you do first?


A) From Design view,click View in the Results group and click Datasheet view.
B) From Design view,click the Run button.
C) From Design view,verify that all fields are listed.
D) From Design view,click Update in the Query type group.

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An append query selects records from one or more tables and uses then to create a new table.

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Once you run an action query,you are committing yourself to an irreversible change.

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The grouping in a crosstab query comes from the definitions of row and column headings.

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Where do the column headings display in a crosstab query?


A) Along the top of a crosstab query
B) Along the left side of a crosstab query
C) Along the right side of a crosstab query
D) Along the bottom of a crosstab query

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A(n)________ query provides the easiest way to move records from one table to another.

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Action queries include update,append,make table,and delete.

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To remove the duplicate records found in a table,you would run a(n)________ query.

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How is a crosstab query different from other queries?


A) You can only reference one object (table or query) as the data source
B) You can use records from several objects in a crosstab query
C) You can preview the data before finalizing the query
D) You can select a data source with several grouping fields

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Match the following terms with their meanings:

Premises
make table query
update query
append query
delete query
Responses
adds records to an existing table
creates a new table from data that already exist in a database
updates or changes data automatically based on criteria that you specify
removes records from a table based on criteria that you specify

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make table query
update query
append query
delete query

When running an append query,the data types of the source fields do not have to match the data types of the destination fields.

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Before running a make table query,what should you do?


A) Preview the datasheet to verify that the records are those that you intend to insert into the table.
B) View the results in Design view.
C) Create the table,you can always delete it if the information is wrong.
D) Create a delete query at the same time.

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A find duplicates query compares records in two related tables and displays the values found in one table but not the other.

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What is the purpose of a crosstab query?

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A crosstab query is ...

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