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V14 Certification: Teradata SQL
Tom Coffing, Leona Coffing
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eBook - ePub
V14 Certification: Teradata SQL
Tom Coffing, Leona Coffing
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About This Book
You are going to love this book because your confidence and knowledge will soar. V14 Certification: Teradata SQL has been designed to help you pass the test, but it is so much more. It is an incredible reference guide, learning tool, and the only book you will need for learning, writing Teradata SQL and passing the certification test.
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Information
Chapter 1 â The Basics of SQL
âAs I would not be a slave, so I would not be a master.â
â Abraham Lincoln
Passing Your Teradata Certification Tests
Exam No | Exam Name |
TE0-141 | Teradata 14 Basics |
TE0-142 | Teradata 14 SQL |
TE0-143 | Teradata 14 Physical Design and Implementation |
TE0-144 | Teradata 14 Database Administration |
TE0-145 | Teradata 14 Solutions Development |
TE0-146 | Teradata 14 Enterprise Architecture |
TE0-147 | Teradata 14 Comprehensive Mastery Exam |
V14 Certification Title | Exams Required For Certification |
Teradata 14 Certified Professional | TE0-141 |
Teradata 14 Certified Technical Specialist | TE0-141, TE0-142 , TE0-143 |
Teradata 14 Certified Database Administrator | TE0-141, TE0-142, TE0-143, TE0-144 |
Teradata 14 Certified Solutions Developer | TE0-141, TE0-142, TE0-143, TE0-145 |
Teradata 14 Certified Enterprise Architect | TE0-141, TE0-142, TE0-143, TE0-145, TE0-146 |
Teradata 14 Certified Master | Pass all seven exams |
All exams must be taken and passed in the order listed. Teradata V12 Masters can take one test to achieve a V14 Masters Upgrade and that is TE0-147. Go to www.prometric.com/Teradata to register for an exam.
Introduction
The Student_Table above will be used
in our early SQL Examples
in our early SQL Examples
This is a pictorial of the Student_Table which we will use to present some basic examples of SQL and get some hands-on experience with querying this table. This book attempts to show you the table, show you the query, and show you the result set.
SELECT * (All Columns) in a Table
Mostly every SQL statement will consist of a SELECT and a FROM. You SELECT the columns you want to see on your report and an Asterisk (*) means you want to see all columns in the table on the returning answer set!
SELECT Specific Columns in a Table
SELECT First_Name
,Last_Name
,Class_Code
,Grade_Pt
FROM Student_Table ;
This is a great way to show the columns you are selecting from the Table_Name.
Commas in the Front or Back?
Why is the example on the left better even though they are functionally equivalent? Errors are easier to spot and comments wonât cause errors.
Place your Commas in front for better Debugging Capabilities
"A life filled with love may have some thorns,
but a life empty of love will have no roses."
but a life empty of love will have no roses."
Anonymous
Having commas in front to separate column names makes it easier to debug. Remember our quote above. "A query filled with commas at the end just might fill you with thorns, but a query filled with commas in the front will allow you to always come up smelling like roses."
Sort the Data with the ORDER BY Keyword
Rows typically come back to the report in rand...