UNIQUE

Description

Specifies that a group of one or more columns of a table can contain only unique values.

Click here to navigate to the Amazon Redshift docs page for this syntax.

In Snowflake, unique, primary and foreign keys are used for documentation and do not enforce constraints or uniqueness. They help describe table relationships but don't impact data integrity or performance.

Grammar Syntax

UNIQUE ( column_name [, ... ] )

Sample Source Patterns

Input Code:

Redshift

IN -> Redshift_01.sql

CREATE TABLE table1 (
    col1 INTEGER, 
    col2 INTEGER,
    UNIQUE ( col1, col2 )
);

Output Code:

Snowflake

OUT -> Redshift_01.sql

CREATE TABLE table1 (
    col1 INTEGER,
    col2 INTEGER,
    UNIQUE ( col1, col2 )
)
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "redshift",  "convertedOn": "09/17/2024" }}'
;

Related EWIs

There are no known issues.