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create table Employee( 2 ID VARCHAR2(4 BYTE) NOT NULL primary key, 3 First_Name VARCHAR2(10 BYTE), 4 Last_Name VARCHAR2(10 BYTE), 5 Start_Date DATE, 6 End_Date DATE, 7 Salary Number(8,2), 8 City VARCHAR2(10 BYTE), 9 Description VARCHAR2(15 BYTE) 10 ) 11 / Table created.
SQL select * from Employee 2 / ID FIRST_NAME LAST_NAME START_DAT END_DATE SALARY CITY DESCRIPTION ---- ---------- ---------- --------- --------- ---------- ---------- --------------- 01 Jason Martin 25-JUL-96 25-JUL-06 1234.56 Toronto Programmer 02 Alison Mathews 21-MAR-76 21-FEB-86 6661.78 Vancouver Tester 03 James Smith 12-DEC-78 15-MAR-90 6544.78 Vancouver Tester 04 Celia Rice 24-OCT-82 21-APR-99 2344.78 Vancouver Manager 05 Robert Black 15-JAN-84 08-AUG-98 2334.78 Vancouver Tester 06 Linda Green 30-JUL-87 04-JAN-96 4322.78 New York Tester 07 David Larry 31-DEC-90 12-FEB-98 7897.78 New York Manager 08 James Cat 17-SEP-96 15-APR-02 1232.78 Vancouver Tester 8 rows selected.
Mutating table errors only impact row level triggers.
But to use a statement level trigger, some data may need to be preserved from each row, to be used by the statement level trigger.
Each new release of the Oracle database reduces the impact of the mutating table error on triggers and they are much less of a problem with Oracle9i and above.
If a trigger does result in a mutating table error, the only real option is to rewrite the trigger as a statement-level trigger.
It’s rare, in fact, that the data with which you are working is just a single value, so records and other composite datatypes are likely to figure prominently in your PL/SQL programs.
This article explores how you declare records, populate them with rows from a table, and even insert or change an entire row in a table by using a record.
You then create selectors to drive interactivity in your Business Intelligence requests, and build a custom Dashboard to contain the requests and views you've created.
Finally, you work with dashboard prompts to filter your dashboard and populate variables.
Back to Topic List The dashboard you build in this tutorial charts sales for the last 12 months by channel, country region, and product category and provides trend analysis data as well as narrative highlights of categories that have declined in sales in the last month.. Make sure you have 2 GB RAM and 15 GB hard disk space. If you do not have VMWare software, download a copy of VMWare Player from For all others, before starting this tutorial, you should: Back to Topic List An odbc data source is needed to import schema information about a data source into an Oracle BI Server repository.
Because only one exception can be raised at a time in a session, it doesn’t make any sense to allow you to check for two (or more) exceptions in a single handler.
For full explanations of both of these answers, visit plsqlchallenge.com, register or log in, and click the Closed/Taken tab in Play a Quiz.