sql - 如何在存储过程中拆分逗号分隔的字符串？

Question

如何在存储过程中将逗号分隔的字符串拆分为字符串并将它们插入到表字段中？

使用火鸟 2.5

Answer 1

这是一个如何拆分字符串并将子字符串写入表格的示例:

create procedure SPLIT_STRING (
  AINPUT varchar(8192))
as
declare variable LASTPOS integer;
declare variable NEXTPOS integer;
declare variable TEMPSTR varchar(8192);
begin
  AINPUT = :AINPUT || ',';
  LASTPOS = 1;
  NEXTPOS = position(',', :AINPUT, LASTPOS);
  while (:NEXTPOS > 1) do
  begin
    TEMPSTR = substring(:AINPUT from :LASTPOS for :NEXTPOS - :LASTPOS);
    insert into new_table("VALUE") values(:TEMPSTR);
    LASTPOS = :NEXTPOS + 1;
    NEXTPOS = position(',', :AINPUT, LASTPOS);
  end
  suspend;
end