Re: Inserting data in composite types!

Rodrigo Sakai wrote:
> Hi, I have a question about how to insert data in composite types!
>
>
>
> Imagine the exemple:
>
>
>
> CREATE TYPE t_time AS (
>
> a date,
>
> b date
>
> );
>
>
>
> CREATE TABLE salary (
>
> salary numeric(10,2),
>
> t_date t_time
>
> );
>
>
>
> I know that if I want to insert data in the table SALARY I just have to do
> like:
>
>
>
> INSERT INTO salary VALUES (1000.00, '(2006/10/10, 2006/12/10)');
>
>
>
> But if I have another table:
>
>
>
> CREATE TABLE employee (
>
> employee_id int,
>
> name varchar(30),
>
> emp_salary salary
>
> )

I am thinking that with the salary type here you are thinking of your
salary table defined above?
If so and you want them in a separate table to record salary histories
then you want to create a foreign key to link them.

You would end up with -

CREATE TABLE employee (

employee_id int PRIMARY KEY,

name varchar(30)

);

CREATE TABLE salary (

emp_id int REFERENCES employee(employee_id) ON DELETE CASCADE,

salary numeric(10,2),

t_date t_time

);

then -
INSERT INTO salary VALUES (1, 1000.00, '(2006/10/10, 2006/12/10)');

Otherwise you will want to change the CREATE TABLE salary... to CREATE
TYPE salary...

Probably as
CREATE TYPE salary AS(
salary numeric(10,2),
a date,
b date
);

You can then
INSERT INTO employee VALUES
(1,'Hard Worker','(1000.00, 2006/10/10, 2006/12/10)');

--

Shane Ambler
pgSQL(at)007Marketing(dot)com

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