Table creation
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You are encouraged to solve this task according to the task description, using any language you may know.
In this task, the goal is to create a table to exemplify most commonly used data types and options.
PostgreSQL
-- This is a comment CREATE SEQUENCE account_seq start 100; CREATE TABLE account ( account_id int4 PRIMARY KEY DEFAULT nextval('account_seq'), created date not null default now(), active bool not null default 't', username varchar(16) unique not null, balance float default 0, age int2, notes text ); CREATE TABLE account_note ( account_id int4 not null REFERENCES account, created timestamp not null default now(), note text not null, unique(account_id, note) );
bool: 't', 'f' or NULL int2: -32768 to +32767 int4: -2147483648 to +2147483647 float: decimal date: obvious timestamp: date time char(#): space padded text field with length of # varchar(#): variable length text field up to # text: not limited