Copy table structure into new table

Question

Is there a way to copy the structure of a table into a new table, without data, including all keys and constraints?

Answer 1

To copy a table completely, the short form using the TABLE command can also be used:

CREATE TABLE films2 AS
    TABLE films
    WITH NO DATA;

More details here

Answer 2

How about

CREATE TABLE sample_table_copy AS (SELECT * FROM sample_table WHERE 1 = 2)

postgresql.org answer

Answer 3

Well, the closest you can get with SQL is:

create table new (
    like old
    including defaults
    including constraints
    including indexes
);

But it will not copy everything. The most important things that are missing are FOREIGN KEYs. Also - triggers are also not copied. Not sure about other things.

Another way is to dump the table structure, change it's name in dump, and load it again:

pg_dump -s -t old databases | sed 's/old/new/g' | psql

But beware, that such simplistic sed will also change old to new in other places (for example if you have in your table column named "is_scolded" it will become "is_scnewed").

The question really is rather: why do you need it - because for various purposes, I would use different techniques.

Answer 4

For a simple schema copy use the like clause.

CREATE TABLE new_table_name ( like old_table_name including all)

Answer 5

Take a look at pgAdmin - by far the easiest way to do what you want.
Right-click on table, Scripts - Create.