There are several use cases for query business rules. Query business rules are used to define the conditions under which certain data should be retrieved or excluded from a database query. Here are some examples of how query business rules can be used:
1. Filtering data: Query business rules can be used to filter data based on specific criteria. For example, a business might want to retrieve all sales transactions that occurred in a particular region or during a certain time period.
2. Sorting data: Query business rules can be used to sort data in a particular order. For example, a business might want to retrieve all customer orders sorted by date, so that the most recent orders are listed first.
3. Aggregating data: Query business rules can be used to perform calculations on data, such as counting, summing, or averaging. For example, a business might want to retrieve the total number of products sold in a particular time period.
4. Joining data: Query business rules can be used to combine data from multiple tables. For example, a business might want to retrieve all sales transactions along with the corresponding customer information.
Overall, query business rules are essential for retrieving the right data from a database and presenting it in a way that meets the specific needs of a business or organization.
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