Download Oracle PL/SQL For Dummies by Michael Rosenblum, Paul Dorsey PDF

By Michael Rosenblum, Paul Dorsey

Find information for growing effective PL/SQL code
If you recognize a piece approximately SQL, this booklet will make PL/SQL programming painless!
The Oracle has spoken—you have to wake up to hurry on PL/SQL programming, correct? we think it'll be a breeze with this ebook! You'll know about code buildings, most sensible practices, and code naming criteria, how you can use stipulations and loops, the place to put PL/SQL code in approach tasks, how you can manage facts, and more.
Discover how to* Write effective, easy-to-maintain code* try and debug PL/SQL workouts* combine SQL and PL/SQL* observe PL/SQL most sensible practices* Use new good points brought in Oracle 9i and 10g

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Extra info for Oracle PL/SQL For Dummies

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You can find more information about literals in the “Literals as variable values” section, later in this chapter. Comments Comments are used to indicate that what follows should be ignored by the PL/SQL interpreter. Comments usually serve the purpose of explaining some hidden rules or logic in the code to other developers. 45 46 Part II: Getting Started with PL/SQL PL/SQL allows two types of comments: single and multi-line. Single-line comments start with a delimiter -- and go to the end of the line, as shown here: declare -- here you should declare variables, -- constants, etc.

You need to enter the following command: Set serveroutput on This special command allows the server to communicate back to you because, by default, server output is turned off. This communication will be critical in the future. In most third-party tools, you can enable server output by clicking an icon on the toolbar. The Basics of PL/SQL Programs With your environment set up, you’re ready to explore some fundamentals of PL/SQL programs. The following sections describe some of the basic syntax you need to know in order to work with PL/SQL.

Oracle usually installs a lot of them but the core ones are ߜ OracleService: This is the database itself and represents all processes and memory elements. ߜ OracleOraDb10g_home1TNSListener (That is a naming convention in Oracle 10g. ) This is a special utility that listens for connection requests from the client applications and routes them to the appropriate database processes of the main service. Connecting with your username To verify the database connection, you must connect as user SYSTEM because you need all administrative privileges to perform the necessary tasks.

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