Which of the following type s of queries are action queries? A. Update queries. B. Crosstab Queries C. Parameter queries D. Append Queries

The correct answer is A. Update queries.

Action queries are queries that make changes to data in a database. Update queries are one type of action query that can be used to change the values of existing records in a table.

Crosstab queries are another type of query that can be used to summarize data from multiple tables. Parameter queries are queries that allow you to enter specific values when you run the query. Append queries are queries that can be used to add new records to a table.

Here is a more detailed explanation of each type of query:

• Update queries are used to change the values of existing records in a table. For example, you could use an update query to change the price of all products in a table by 10%.
• Crosstab queries are used to summarize data from multiple tables. For example, you could use a crosstab query to show the total sales for each product by month.
• Parameter queries are queries that allow you to enter specific values when you run the query. For example, you could use a parameter query to find all customers who live in a specific city.
• Append queries are used to add new records to a table. For example, you could use an append query to add new products to a table.