By Donald Bales
Get began with PL/SQL, the integrated language that each Oracle developer and database administrator needs to be aware of, in starting PL/SQL , a fast paced and example-filled educational. examine from writer Don Bales wide adventure to find the main usual elements of PL/SQL with no losing time with imprecise and out of date positive factors.
Author Don Bales takes his 20+ years of expertise and a wealth of facts he is amassed on PL/SQL utilization over these years and applies the 80/20 rule &emdash; disguise whats so much wanted and utilized by PL/SQL pros and stay away from whats now not beneficial! the result's a e-book that covers the entire key beneficial properties of PL/SQL with out wasting precious time discussing esoteric and out of date components of the language. examine what rather issues, that you should get to paintings feeling convinced with what you recognize approximately PL/SQL.
- Discover the 20% of PL/SQL that offers you eighty% of the bangkey issues lined contain variables and datatypes, executing statements, operating with cursors, real-world items, debugging, checking out, and more.
- Learn the way to write production-level, object-oriented PL/SQLyoull discover relational PL/SQL, yet not like such a lot different books at the topic, Don Bales emphasizes using PL/SQLs object-oriented good points as well.
- Work via actual examples of utilizing of PL/SQLyoull examine PL/SQL by way of making use of it to real-world enterprise difficulties, now not through heavy theory.
What youll learn
- How vital SQL is in PL/SQL
- How to take advantage of PL/SQL in either a relational and object-relational setting
- How to create maintainable, modular, and reusable PL/SQL application units
- The significance of checking out as you pass, and of creating an everlasting attempt plan for every module
- The significance of creating debugging functions into your code and development an enduring debug facility for every module
- The value of documenting as you move, and within the method construction an everlasting documentation set to your reusable modules
- How to use modular PL/SQL to unravel real-world problems
Who is that this publication for?
Anyone who desires to the right way to create kept methods opposed to an Oracle database utilizing PL/SQL. Programmers constructing functions to be deployed opposed to an Oracle database will desire PL/SQL to take complete benefit of the facility Oracle has to provide. Database directors who desire to enforce performance uncovered simply through PL/SQL package deal interfaces also will locate this publication useful.
About the Apress starting Series
The starting sequence from Apress is the best option to get the data you must land that the most important entry-level task. those books will educate you a regular and demanding know-how from the floor up simply because they're explicitly designed to take you from ''novice to professional.'' Youll begin your trip via seeing what you must knowbut with no pointless conception and filler. Youll construct your ability set by way of studying how you can prepare real-world initiatives step-by-step. So no matter if your objective is your subsequent profession problem or a brand new studying chance, the start sequence from Apress will take you thereit is your relied on advisor via strange territory!
Read or Download Beginning PL/SQL: From Novice to Professional PDF
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Extra info for Beginning PL/SQL: From Novice to Professional
My shot at this is shown in Listing 1-4. fm Page 7 Tuesday, July 17, 2007 3:47 AM C HA PTER 1 ■ G ENES IS Listing 1-4. ndx 1 2 3 CREATE INDEX publication_k1 on publication ( title ); Now you know how to create a table and an index or two to make accessing it efficient, but what prevents someone from entering bad data Well, that’s what constrains are for. Constraints Constraints are rules for a table and its columns that constrain how and what data can be inserted, updated, or deleted. Constraints are available for both columns and tables.
The OR REPLACE clause will allow you to re-create your trigger if it already exists. fm Page 12 Tuesday, July 17, 2007 3:47 AM 12 CHAPTER 1 ■ GEN ESIS Views A view represents the definition of a SQL query (SELECT statement) as though it were just another table in the database. Hence, you can INSERT into and UPDATE, DELETE, and SELECT from a view just as you can any table. ) Here are just a few of the uses of views: • Transform the data from multiple tables into what appears to be one table. • Nest multiple outer joins against different tables, which is not possible in a single SELECT statement.
Joins in a Where Clause Listing 1-24 shows the SQL SELECT statement from that view created in Listing 1-11 with an added ORDER BY clause. In this example, I am joining the two tables using the WHERE clause (sometimes called traditional join syntax). Listing 1-24. fm Page 24 Tuesday, July 17, 2007 3:47 AM 24 CHAPTER 1 ■ GEN ESIS ID ----200 200 200 200 100 100 300 300 NAME -----------------CHRIS J DATE CHRIS J DATE CHRIS J DATE CHRIS J DATE EDGAR F CODD EDGAR F CODD HUGH DARWEN HUGH DARWEN TITLE --------------------------------------------------THE THIRD MANIFESTO TEMPORAL DATA AND THE RELATIONAL MODEL AN INTRODUCTION TO DATABASE SYSTEMS DATABASE IN DEPTH: RELATIONAL THEORY FOR PRACTITION A RELATION MODEL OF DATA FOR LARGE SHARED DATA BANK THE RELATIONAL MODEL FOR DATABASE MANAGEMENT THE THIRD MANIFESTO TEMPORAL DATA AND THE RELATIONAL MODEL 8 rows selected.
Beginning PL/SQL: From Novice to Professional by Donald Bales