Обсуждение: Plpgsql: Iterating through a string of parameters

I'm struggling with how to make plpgsql iterate through a list of numbers 
input as a text string, eg. "1438 2656 973 4208". I figure that I can use the 
regexp_split_to_array() function to make an array of the string, but can I 
iterate through an array with eg. a FOR loop?

regards,
-- 
Leif Biberg Kristensen
http://solumslekt.org/

On 2010-03-25, Leif Biberg Kristensen <leif@solumslekt.org> wrote:
> I'm struggling with how to make plpgsql iterate through a list of numbers 
> input as a text string, eg. "1438 2656 973 4208". I figure that I can use the 
> regexp_split_to_array() function to make an array of the string, but can I 
> iterate through an array with eg. a FOR loop?

using regex_split_to_table with for is easier
for x in regex_split_to_table(....) do
But if you must you can use split to array and then use the array measuring
functions to determine the limit for a counted for loop.