Download A Guide to SQL (8th Edition) by Philip J. Pratt, Mary Z. Last PDF

By Philip J. Pratt, Mary Z. Last

A advisor TO SQL, 8E, is still the basic SQL reference. It builds at the good fortune of earlier variants via proposing uncomplicated SQL instructions within the context of a working case within which a company makes use of SQL to control orders, elements, buyers, and revenues reps. The e-book covers the basics of SQL programming utilizing trouble-free guideline and large hands-on workouts. carrying on with with its concentrate on studying the fundamentals whatever the database surroundings selected, this variation positive factors examples from the most recent databases: Oracle 11g, entry 2007, and MySQL. The 8th variation expands at the use of working case experiences by way of including a 3rd operating case to the wide hands-on pedagogy on the finish of each bankruptcy.

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Extra resources for A Guide to SQL (8th Edition)

Example text

Formally, these tables are called relations, and this is how this type of database gets its name. 00 FIGURE 2-1 Sample data for Premiere Products Database Design Fundamentals NOTE 26 The names of columns and tables in this text follow a common naming convention in which column names use uppercase letters and replace spaces between words with underscores (_). For example, Premiere Products uses the column named LAST_NAME to store last names and the column named CREDIT_LIMIT to store credit limits.

List the part number and part description of all parts that are in item class HW. 5. How many customers have a balance that exceeds their credit limit? 6. What is the part number, description, and price of the least expensive part in the database? 7. For each order, list the order number, order date, customer number, and customer name. 8. For each order placed on October 21, 2010, list the order number, customer number, and customer name. 9. List the sales rep number and name for every sales rep who represents at least one customer with a credit limit of $10,000.

2. 3. Chapter 2 Updates: If you need to change to the description of part DR93, you must change it twice—once in each row on which part DR93 appears. Updating the part description more than once makes the update process much more cumbersome and time consuming. Inconsistent data: There is nothing about the design that prohibits part DR93 from having two different descriptions in the database.

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