oracle split，oracle
CREATE OR REPLACE TYPE TYPE_SPLIT as table of varchar2(200);create or replace function f_split(p_list varchar2, p_sep varchar2 := ',') return TYPE_SPLIT pipelined is l_idx pls_integer; v_list varchar2(200) := p_list; begin loop l_idx := instr(v_list, p_sep); if l_idx > 0 then pipe row(substr(v_list, 1, l_idx - 1)); v_list := substr(v_list, l_idx + length(p_sep)); else pipe row(v_list); exit; end if; end loop; return; end f_split;
select column_value km from table(cpm_f_split(v_kms, ',');
oracle 中的split是分区里有数据检索用的,具体也不知道怎用,
不是JAVA里的split函数,
若想要在oracle 实现些函数
CREATE OR REPLACE TYPE ty_str_split IS TABLE OF VARCHAR2 (4000);
CREATE OR REPLACE FUNCTION fn_split (p_str IN VARCHAR2, p_delimiter IN VARCHAR2)
RETURN ty_str_split
IS
j INT := 0;
i INT := 1;
len INT := 0;
len1 INT := 0;
str VARCHAR2 (4000);
str_split ty_str_split := ty_str_split ();
BEGIN
len := LENGTH (p_str);
len1 := LENGTH (p_delimiter);
WHILE j < len
LOOP
j := INSTR (p_str, p_delimiter, i);
IF j = 0
THEN
j := len;
str := SUBSTR (p_str, i);
str_split.EXTEND;
str_split (str_split.COUNT) := str;
IF i >= len
THEN
EXIT;
END IF;
ELSE
str := SUBSTR (p_str, i, j - i);
i := j + len1;
str_split.EXTEND;
str_split (str_split.COUNT) := str;
END IF;
END LOOP;
RETURN str_split;
END fn_split;
/
测试：
DECLARE
CURSOR c
IS
SELECT *
FROM TABLE (CAST (fn_split ('1;;12;;123;;1234;;12345', ';;') AS ty_str_split
)
);
r c%ROWTYPE;
BEGIN
OPEN c;
LOOP
FETCH c INTO r;
EXIT WHEN c%NOTFOUND;
DBMS_OUTPUT.put_line (r.column_value);
END LOOP;
CLOSE c;
END;
/
结果：
1
12
123
1234
12345...余下全文>>
网上你只摘了一部分，还有个类型定义和声明呢，去找一下吧，其中有ty_str_split这个类型的定义