Oracle 拆分字串

create or replace function splitstr(p_string    in varchar2,

p_delimiter in varchar2)

return str_split

pipelined as

v_length number := length(p_string);

v_start  number := 1;

v_index  number;

/*by lhp 2011-04-09

測試select * from table(splitstr('henry,huang',','));

行列轉化

select a.column_value name1,b.column_value name1 from　

(select * from (select rownum rn,t.* from table(splitstr('henry,huang',',')) t)) a,　

(select * from (select rownum rn,t.* from table(splitstr('henry,huang',',')) t)) b　

where a.rn=1 and b.rn=2

*/begin

while (v_start <= v_length) loop

v_index := instr(p_string, p_delimiter, v_start);

if v_index = 0 then

pipe row(substr(p_string, v_start));

v_start := v_length + 1;

else

pipe row(substr(p_string, v_start, v_index - v_start));

v_start := v_index + 1;

end if;

end loop;

return;

end splitstr;

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