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microsoft+access+course+london - query

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microsoft+access+course+london - Query

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Vicky has attended:
Access Introduction course

Query

What is a query? Is it Access-specific terminology?

RE: Query

a Query is a question which you ask your database
Microsoft Access supports many types of queries. Here is a description of the major categories:

Select Queries
Retrieve records or summaries (totals) across records. Also includes cross-tabulations.
Make Table Queries
Similar to Select queries but results are placed in a new table.
Append Queries
Similar to Select queries but results are added to an existing table.
Update Queries
Modify data in the records.
Delete Queries
Records are deleted from a table.

it is not Access-specific terminology

Access tip:

Deleting duplicate records from a table

You cannot delete records tables where there duplicate records. A way around this is to create a new table which wont hold the duplicates. and then deleting the old table.

1. Use a make-table query based on this table only. IMPORTANT - Ensure that you include all of the fields from your original table or you may loose data.

2. Open the query's property sheet by using VIEW, QUERY, PROPERTIES, and set the Unique Values property to Yes

3. Because you have selected the Unique Values to Yes when you run the query, Access creates a new table without duplicate records. You can now delete the old table and rename the new one.

View all Access hints and tips

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