Creating Triggers

Dev Shed Forums Sponsor:

Avoid common pitfalls of incorporating spreadsheets into Java apps. Read about it in the free white paper: “Five Biggest Blunders when Building Spreadsheet Applications in Java” Download Now!

August 29th, 2004, 03:51 AM

smiler1

Registered User

Join Date: Aug 2004

Posts: 22

Time spent in forums: < 1 sec
Reputation Power: 0

Creating Triggers

Hi I am using Oracle9i, and need to create some triggers which ensure that the following constraints are implemented on scott database. These need to satisfy the following criteria:

(1) The following job updates are not allowed: ANALYST  SALESMAN

(2) Any update or insert into the SALGRADE table has to ensure that salary ranges for each grade do not overlap.

(3) The itemtot attribute (the inclusion of which in the database is evidence of very bad design) needs to be automatically maintained and not be directly updateable.

Could someone help me with these, as I have no experience of writing triggers and dont really know where to start.

Thanks.

Viewing: Dev Shed Forums > Databases > Oracle Development > Creating Triggers

« Previous Thread | Next Thread »

Thread Tools	Search this Thread
Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off

View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox

Forum Jump

Free IT White Papers!

Accelerating Trading Partner Performance
One in five. That's how many partner transactions have at least one error. That is an amazing statistic, particularly given the extraordinary leaps in innovation across the global supply chain during the past two decades. Download this white paper to learn more.

Competing on Analytics
This Tech Analysis is designed to help identify characteristics shared by analytics competitors, and includes information about 32 organizations that have made a commitment to quantitative, fact-based analysis.

Cost Effective Scaling with Virtualization and Coyote Point Systems
An overview of the industry trend toward virtualization, how server consolidation has increased the importance of application uptime and the steps being taken to integrate load balancing technology with virtualized servers.

Five Checkpoints to Implementing IP Telephony
Implementation planning for IP PBX software and IP telephony has become vital as businesses replace discontinued legacy PBX phone systems. This informative whitepaper outlines five "checkpoints" for any implementation plan that will help make IP communications a successful proposition.

Hosted Email Security: Staying Ahead of New Threats
In the last two years, email has become a fierce battleground between the nefarious forces of spam and malware, and the heroes of messaging protection. The spam volumes increased alarmingly every month, bringing clever new forms of phishing and virus propagation attacks.

More Free IT White Papers!