How many times a customer generated an invoice

Assignment Help PL-SQL Programming

Reference no: EM131487749

Question: Write SQL statements to answer the following questions from the ‘assignment5'Database: Answer all questions

- List all the record/s in the vendor table that do not have a value for the attribute V_STATE.

- Find the customers whose balance is greater than 250 but less than 400.

- Create a query based on invoice table to show a 15% increase on tax in a new column.

- Show the first and last names of the customers for whom we have issued invoices.

- Show the CUS_CODE of the customers for whom we DO NOT have invoices.

- Show the names of the customers for whom we DO NOT have invoices

- Find out how many times a customer generated an invoice - make sure the counted column heading reads "Invoices_generated" .

- List the names of the customers and how many times a customer generated an invoice - make sure the counted column heading reads "N_Of_Invoices" .

- Find the customers whose last name is either Dunne, Orlando or Brown and live in area 615, sort in alphabetical order by the CUS_LNAME,.

- Add a new attribute called ‘email_address' to ‘emp' table and use data type and length ‘VARCHAR-20'.

- Add a new row/record to the `customer` table to include your actual student ID in the CUS_CODE, your lastname as the CUS_LNAME` and your firstname as CUS_FNAME. Add any other details in the other fields.

- Delete all the vendors in the FL state.

Reference no: EM131487749

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