Oracle SQL by Example.pdf

Oracle SQL by Example PDF

Alice Rischert

The book... has enough depth for even a seasoned professional to pick up enough tips to pay back the price of the book many times over. -Dr. Paul Dorsey, President, Dulcian, Inc., and President, New York Oracle Users Group Students find Oracle SQL by Example to be extremely helpful not only to their coursework but also in preparing them for future careers as Oracle DBAs and developers. The layout of the text is conducive to the learning process. It introduces a concept and then reinforces that concept with an exercise. Betsy Jenaway, Coordinator, Malcomb Operations, and Senior Lecturer, College of Management, Lawrence Technological University, Southfield, MI The worlds #1 hands-on Oracle SQL workbook... fully updated for Oracle 109 Crafted for hands-on learning and tested in classrooms worldwide, this book illuminates in-depth every Oracle SQL technique youll need. From the simplest query fundamentals through the newest regular expression database enhancements, you will focus on the tasks that matter most. Hundreds of guided lab exercices will systematically strengthen your expertise in writing effective, high-performance SQL. Along the way, you will acquire an arsenal of useful Oracle SQL knowledge and techniques : an extraordinary library of solutions for your real-world challenges with Oracle SQL. Creating and using tables, views, indexes, and sequences. Working in SQL*Plus and iSQL*Plus environments : Oracle functions in depth-especially number, character, date, timestamp, interval, time zone, aggregate, and analytical functions

SQL GROUP BY Examples Problem: List the number of customers in each country SELECT COUNT(Id), Country FROM Customer GROUP BY Country Results: 21 records. ROW_NUMBER(), RANK(), DENSE_RANK() WITH ... - …

7.88 MB Taille du fichier
9780131451315 ISBN
Libre PRIX
Oracle SQL by Example.pdf


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Notes actuelles

Sofya Voigtuh

PL/SQL; Administration; Home / Oracle Basics / Oracle PIVOT . Oracle PIVOT. Summary: in this tutorial, you will learn how to use the Oracle PIVOT clause to transpose rows to columns to generate result sets in crosstab format. Introduction to Oracle PIVOT clause. Oracle 11g introduced the new PIVOT clause that allows you to write cross-tabulation queries which transpose rows into columns

Mattio Müllers

Of course, you can write a complex SQL*:Loader or SQL script using DECODE to load the data into CUSTOMERS table. Or you can use the reverse operation of pivot —UNPIVOT—to break up the columns to become rows, as is possible in Oracle Database 11g. It might be easier to demonstrate this via an example.

Noels Schulzen

ORACLE-BASE - WITH Clause : Subquery Factoring … The WITH clause, or subquery factoring clause, is part of the SQL-99 standard and was added into the Oracle SQL syntax in Oracle 9.2. The WITH clause may be processed as an inline view or resolved as a temporary table. The advantage of the latter is that repeated references to the subquery may be more efficient as the data is easily retrieved from the temporary table, rather than being

Jason Leghmann

Crafted for hands-on learning and tested in classrooms worldwide, this book illuminates in-depth every Oracle SQL technique you'll need. From the CONNECT BY LOOP - Oracle Consulting, Oracle …

Jessica Kolhmann

These PL/SQL tutorial series provide the best practices on PL/SQL programming language. The best part is that they contain a lot of examples and helpful script ...