How to add dummy data to my database of test? a novice needs help

Hi all

I'm pretty new to oracle and I would mess around with it some more, I created my database (MVF) and created a test tablespace.
Now it's what would be the best way to fill the space of storage of data? can I just insert a few lines in the tablespace? or are there ways more effective to do this?
Perhaps someone who could provide me with a pl/sql script for it? or a procedure which would make this (insert x the amount of dummy data) on a regular basis?

Thanks in advance!







(ps this is my first post so please excuse me if my post is not according to the regular lines)

Published by: 994141 on 15-mrt-2013 12:38

Hello

Welcome to the forum!

994141 wrote:
Hi all

I'm pretty new to oracle and I would mess around with it some more, I created my database (MVF) and created a test tablespace.
Now it's what would be the best way to fill the space of storage of data? can I just insert a few lines in the tablespace?

This is the usual approach. You have some situations you want to test: unique compared to duplicate values, certain combinations of values, some missing columns, the values limits extremes, even the questionable data or invalid (for example birth_date in the future). Create individual INSERT statements for these cases. Write a script to do this, you can use the features of the Editor (cut/paste, search/replace) allows you to easily create statements or re - run them if you get something wrong the first time.

or are there ways more effective to do this?

If you want a large amount of data, you may copy it to an existing table or view. Even if you created the database, you probably have hundreds of lines in views of data, such as object dictionary. For example, if you have 100 rows in an employee table, you could say:

CREATE TABLE employee
(  employee_id     NUMBER     PRIMARY KEY
,  last_name     VARCHAR2 (20)
,  first_name     VARCHAR2 (20)
,  hire_date     DATE
);

INSERT INTO employee
(       employee_id
,     last_name
,     first_name
,     hire_date
)
SELECT     ROWNUM
,     SUBSTR (object_name, 1, 20)
,     SUBSTR (owner,          1, 20)
,     created
FROM     all_objects
WHERE     ROWNUM     <= 100
;

You might find yourself with a large number of employees 'SYS '.

Here is another way to generate data. Say, you want a table with 60 lines, one line per day during the last 60 days:

CREATE TABLE     test_dates
AS
SELECT     LEVEL               AS dt_id
,     SYSDATE - LEVEL          AS dt
FROM     dual
CONNECT BY     LEVEL     <= 60
;

Perhaps someone who could provide me with a pl/sql script for it?

As you can see, a lot of things can be done without PL/SQL, just using plain old SQL.
Of course, PL/SQL is available if you really need.

Tags: Database

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