Question: Intro to databases SQL exercises 7.16 Relational Algebra Exercise Write relational expressions to accomplish these tasks. Use the same database from Appendix 2 a. Retrieve

Intro to databases SQL exercises

expressions to accomplish these tasks. Use the same database from Appendix 2

a. Retrieve the company name, contact, and email of all domestic (USA)

customers b. Retrieve the company name, contact, and email of all customers

who have ever placed an order. c Retrive the company name, conmtact,

7.16 Relational Algebra Exercise Write relational expressions to accomplish these tasks. Use the same database from Appendix 2 a. Retrieve the company name, contact, and email of all domestic (USA) customers b. Retrieve the company name, contact, and email of all customers who have ever placed an order. c Retrive the company name, conmtact, ema a orders

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5. It often is a good idea to make others dependent on you for your expertise and knowledge.

6. To maintain power, you should not compromise, even when an issue is of minor importance to you.

4. The simplest and best long-term strategy for getting others to do what you want is to let them know that you are the boss.