Thread: Estimating a table size

Estimating a table size

From

"Rodrigo Sakai"

Date:

21 September 2006, 17:24:04

Hello all,

I need a tool or something like it, which can give me the estimated size of a table considering all fields, constraints, indexes, etc...

For example:

CREATE TABLE products (

product_id INT8,

product_name VARCHAR(50),

product_vendor VARCHAR(50),

price NUMERIC(10,2),

CONSTRAINT pk_products PRIMARY KEY (product_id),

CONSTRAINT ck_price CHECK (price >= 0)

);

CREATE INDEX ix_products ON products (product_name);

See that in the example above I have, some fields, some constraints and one index. I want to know (estimate) how much fisical space (KB, MB) it will consume!

Thanks in advance!

Re: Estimating a table size

From

"Guido Barosio"

Date:

21 September 2006, 17:42:06

there used to be a dbsize project, search for it.

g.-
On 9/21/06, Rodrigo Sakai <rodrigo.sakai@zanthus.com.br> wrote:
>
>
>
>
>   Hello all,
>
>
>
>   I need a tool or something like it, which can give me the estimated size
> of a table considering all fields, constraints, indexes, etc...
>
>
>
>   For example:
>
>
>
>
>
>   CREATE TABLE products (
>
>      product_id INT8,
>
>      product_name VARCHAR(50),
>
>      product_vendor VARCHAR(50),
>
>      price NUMERIC(10,2),
>
>
>
>      CONSTRAINT pk_products PRIMARY KEY (product_id),
>
>      CONSTRAINT ck_price CHECK (price >= 0)
>
> );
>
>
>
>
>
> CREATE INDEX ix_products ON products (product_name);
>
>
>
>
>
>   See that in the example above I have, some fields, some constraints and
> one index. I want to know (estimate) how much fisical space (KB, MB) it will
> consume!
>
>
>
>
>
>   Thanks in advance!
>
>


--
Guido Barosio
-----------------------
http://www.globant.com
guido.barosio@globant.com

Re: Estimating a table size

From

"Talha Khan"

Date:

21 September 2006, 17:50:15

when you have dbsize installed you need to do

select relation_size('TableName');

to get the size of the table.

On 9/21/06, Rodrigo Sakai <rodrigo.sakai@zanthus.com.br> wrote:

Hello all,

I need a tool or something like it, which can give me the estimated size of a table considering all fields, constraints, indexes, etc...

For example:

CREATE TABLE products (
     product_id INT8,
     product_name VARCHAR(50),
     product_vendor VARCHAR(50),
     price NUMERIC(10,2),

    CONSTRAINT pk_products PRIMARY KEY (product_id),
     CONSTRAINT ck_price CHECK (price >= 0)
);

CREATE INDEX ix_products ON products (product_name);

See that in the example above I have, some fields, some constraints and one index. I want to know (estimate) how much fisical space (KB, MB) it will consume!

Thanks in advance!

Re: Estimating a table size

From

"Shoaib Mir"

Date:

21 September 2006, 17:50:26

http://www.postgresql.org/docs/8.1/static/diskusage.html can help you get this information.

Thanks,
--
Shoaib Mir
EnterpriseDB ( www.enterprisedb.com)

On 9/21/06, Guido Barosio <gbarosio@gmail.com> wrote:

there used to be a dbsize project, search for it.

g.-
On 9/21/06, Rodrigo Sakai <rodrigo.sakai@zanthus.com.br> wrote:
>
>
>
>
>   Hello all,
>
>
>
>   I need a tool or something like it, which can give me the estimated size
> of a table considering all fields, constraints, indexes, etc...
>
>
>
>   For example:
>
>
>
>
>
>   CREATE TABLE products (
>
>      product_id INT8,
>
>      product_name VARCHAR(50),
>
>      product_vendor VARCHAR(50),
>
>      price NUMERIC(10,2),
>
>
>
>      CONSTRAINT pk_products PRIMARY KEY (product_id),
>
>      CONSTRAINT ck_price CHECK (price >= 0)
>
> );
>
>
>
>
>
> CREATE INDEX ix_products ON products (product_name);
>
>
>
>
>
>   See that in the example above I have, some fields, some constraints and
> one index. I want to know (estimate) how much fisical space (KB, MB) it will
> consume!
>
>
>
>
>
>   Thanks in advance!
>
>

--
Guido Barosio
-----------------------
http://www.globant.com
guido.barosio@globant.com

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