2023年5月29日(月) 12:39 Wen Yi <896634148@xxxxxx>: > > Hi team, > when I study the generate_series function, I found that it can not only generate the number series but also can generate the date series.(ref: https://www.postgresql.org/docs/current/functions-srf.html) > That means I can make the generate_series to generate the letter series. > > So I try this command (I guess I can follow the ascil code rule to complete this work): > > # SELECT * FROM generate_series('a'::int, 'z'::int, 1); > > But the postgres reply me a error, because the 'a' can't translate into 'integer' type. > > Can someone provide me a better solution? > Thanks in advance! SELECT chr(x + 96) FROM generate_series(1, 26) x Regards Ian Barwick
