Customer Service Database, complete the following:
Output three queries using Structured Query Language (SQL) code (not the standard access view). Provide examples of operations. You should include the following:
A query on all contacts in the customers’ table showing first name, last name, address, e-mail address and three additional fields from the table.
An update query that changes one or more customer records but not all records.
A delete query that removes one or more customer records but not all records.
Using SQL commands add a field called Birthday to the Customers table. Populate the Birthday field for some of the table records (not all of the table records). This is important for step #4. Populate all other fields with data. Show your SQL query in a screenshot with before and after data.
Report on Customers in Database showing Names, State, and Phone Numbers. Show the SQL query and the resulting report in a screenshot. Create a report showing contact names and birthdays. Do not show records without a birthday. Show the report and the SQL query in a screenshot. Provide an explanation of referential integrity, including how a lack of referential integrity can compromise data in the dataset and provide examples. Identify the referential integrity in your database. Show the affected tables in each dataset and how the data elements are impacted as the result of add, change, or deletion (UAD) operations in a before and after screenshot.
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