Creating Your First Table¶
The Creating Your First Table section describes the following:
Creating a Table
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 VARCHAR(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 VARCHAR(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" varchar(20), "weight" int );
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.