Read e-book online Oracle PL/SQL For Dummies PDF

By Michael Rosenblum, Paul Dorsey

ISBN-10: 0764599577

ISBN-13: 9780764599576

Find suggestions for developing effective PL/SQL code
If you recognize a piece approximately SQL, this e-book will make PL/SQL programming painless!
The Oracle has spoken—you have to wake up to hurry on PL/SQL programming, correct? we expect it'll be a breeze with this publication! You'll know about code constructions, most sensible practices, and code naming criteria, easy methods to use stipulations and loops, the place to put PL/SQL code in procedure tasks, how one can manage facts, and more.
Discover how to* Write effective, easy-to-maintain code* try out and debug PL/SQL exercises* combine SQL and PL/SQL* observe PL/SQL top practices* Use new beneficial properties brought in Oracle 9i and 10g

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Extra info for Oracle PL/SQL For Dummies

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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.

SQL*Plus If you’ve already been working with Oracle, you’ve probably heard of SQL*Plus. This tool is installed with all versions of Oracle (both server and client). The main purpose of SQL*Plus is to provide quick and easy access to the database in both interactive and batch modes. Compared to the leading GUI development tools, SQL*Plus is a relatively primitive tool that most professional developers rarely use. You can run SQL scripts, PL/SQL scripts, and other scripts by using the internal command language of SQL*Plus by itself.

Using this approach, you can type the string exactly as you want it to appear. , but , [/], {/}, and (/)) to declare the start and end of a quoted string. In this line, the text does not end with a period but with a real exclamation point so you must replace the string delimiter with something else. Text literals in Oracle are case sensitive. This means that ‘text’ and ‘Text’ are two different literals. Understanding the scope of variables By definition, the scope of a variable is a region of a program unit (block, subprogram, or package) from which you can reference the variable.

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


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