By Donald Bales
Beginning Oracle PL/SQL will get you begun in utilizing the integrated language that each Oracle developer and database administrator needs to recognize. Oracle Database is brim-full of integrated software positive factors which are unfastened for the utilizing, and PL/SQL is your price tag to studying approximately and utilizing these positive aspects out of your personal code. With it, you could centralize company good judgment within the database, you could offload program common sense, and you may automate database- and application-administration initiatives.
Author Don Bales offers in Beginning Oracle PL/SQL a fast moving and example-filled educational. study from Don’s wide event to find the main regular features of PL/SQL, with out losing time on imprecise and out of date good points.
The writer takes his 20+ years of expertise and a wealth of statistics he is accumulated on PL/SQL utilization over these years and applies the 80/20 rule: disguise what is such a lot wanted and utilized by PL/SQL pros and keep away from what is no longer worthwhile! the result's a publication that covers all of the key gains of PL/SQL with out squandering precious time discussing esoteric and out of date components of the language. research what fairly issues, that you can get to paintings feeling convinced with what you recognize approximately PL/SQL.
- Covers the major issues that topic, together with variables and datatypes, executing statements, operating with cursors, bulk operations, real-world gadgets, debugging, checking out, and more.
- Teaches you to put in writing production-level, object-oriented PL/SQL. you are going to discover relational PL/SQL, yet not like such a lot different books at the topic, this one emphasizes using PL/SQLs object-oriented beneficial properties as well.
- Guides you in operating via actual examples of utilizing of PL/SQL. you are going to examine PL/SQL by way of utilizing it to real-world enterprise difficulties, now not via heavy theory.
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Additional resources for Beginning Oracle PL/SQL
The id_context column is a convenience or performance column for the mechanics of querying the database. You are going to write a PL/SQL function that will create an ID context string for this column. 14. This will greatly improve the performance of any LIKE queries against the hierarchy of the organizations in the table. It’s Your Turn to Create Content Tables Now that you’ve seen me do it, you should be able to code the scripts to do the same for the PHYSICAL_WORKPLACES , TASKS, and WORKS tables.
Note that set serveroutput on size 1000000 is a SQL*Plus command and is not part of the anonymous block. The line that starts with begin starts your PL/SQL procedure’s executable code section. '); Here, put_line stores your text in a buffer until the PL/SQL procedure ends. Then SQL*Plus displays the text from that buffer on the screen for you to see. The fourth line, which starts with end, ends the anonymous PL/SQL procedure. Finally, as stated earlier, the forward slash (/) on a line by itself tells SQL*Plus to execute the procedure.
ON clause. Listing 1-25. title; Both forms of the join syntax give the same results. I suggest you use the syntax that is consistent with the previous use of join syntax in the application you’re currently working on, or follow the conventions of your development team. It’s Your Turn to Select It’s time to for you to try to use the SELECT statement. Show me all the authors who have coauthored a book. 1. Write the DML script. 2. sql. 3. Execute your script in SQL*Plus. You should get results something like this: NAME -----------------CHRIS J DATE HUGH DARWEN Next, show me all the publications that have been coauthored along with the author’s name.
Beginning Oracle PL/SQL by Donald Bales