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amazon-redshiftHow do I generate a series in Amazon Redshift?


Generating a series in Amazon Redshift is done using the generate_series function. This function allows you to generate a series of values based on a start and end value, as well as an interval.

For example, this code will generate a series of numbers between 1 and 10, with an interval of 2:

SELECT *
FROM generate_series(1, 10, 2);

The output of this code will be:

1
3
5
7
9

The syntax of the generate_series function is as follows:

generate_series(start, end, interval)

  • start: The start of the series
  • end: The end of the series
  • interval: The interval between each number in the series

You can also generate a series of dates using the generate_series function. For example, this code will generate a series of dates between two dates, with an interval of one day:

SELECT *
FROM generate_series('2020-01-01', '2020-01-10', '1 day');

The output of this code will be:

2020-01-01
2020-01-02
2020-01-03
2020-01-04
2020-01-05
2020-01-06
2020-01-07
2020-01-08
2020-01-09
2020-01-10

For more information about the generate_series function, please see the Amazon Redshift documentation.

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