openGauss/MogDB数据库函数创建的两种风格
PostgreSQL风格
create or replace function months_between()
returns number
as $function$
begin
return 0;
exception when …
end;
$function$ language plpgsql;
create or replace function months_between()
returns number
as $function$
begin
return 0;
exception when …
end;
$function$ language plpgsql;
