Creating Your First Table

The Creating Your First Table section describes the following:

Creating a table
Replacing a table
Listing a CREATE TABLE statement
Dropping a table

Creating a Table

The CREATE TABLE syntax is used to create your first table. This table includes a table name and column specifications, as shown in the following example:

CREATE TABLE cool_animals (
   id INT NOT NULL,
   name TEXT(20),
   weight INT
);

For more information on creating a table, see CREATE TABLE.

Replacing a Table

You can drop an existing table and create a new one by adding the OR REPLACE parameter after the CREATE keyword, as shown in the following example:

CREATE OR REPLACE TABLE cool_animals (
   id INT NOT NULL,
   name TEXT(20),
   weight INT
);

Listing a CREATE TABLE Statement

You can list the full, verbose CREATE TABLE statement for a table by using the GET DDL function with the table name as shown in the following example:

test=> SELECT GET_DDL('cool_animals');
create table "public"."cool_animals" (
"id" int not null,
"name" text(20),
"weight" int
);

Note

SQream DB identifier names such as table names and column names are not case sensitive. SQream DB lowercases all identifiers bu default. If you want to maintain case, enclose the identifiers with double-quotes.
SQream DB places all tables in the public schema, unless another schema is created and specified as part of the table name.

For information on listing a CREATE TABLE statement, see GET_DDL.

Dropping a Table

When you have finished working with your table, you can drop the table to remove it table and its content, as shown in the following example:

test=> DROP TABLE cool_animals;

executed

For more information on dropping tables, see DROP TABLE.