CREATE OR REPLACE TYPE ty_str_split IS TABLE OF VARCHAR2 (4000);CREATE OR REPLACE FUNCTION 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 split;
/1.测试例子:select * from table (split('a,b,c,sdf',','));1 a
2 b
3 c
4 sdf
用这个函数进行截取的时候 返回的是多条 如何才能让他返回成一行呢?
a b c sdf Oracle
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 split;
/1.测试例子:select * from table (split('a,b,c,sdf',','));1 a
2 b
3 c
4 sdf
用这个函数进行截取的时候 返回的是多条 如何才能让他返回成一行呢?
a b c sdf Oracle
select level l, regexp_substr('a,b,c,sdf', '[^,]+', 1, level) str
from dual
connect by level <= regexp_count('a,b,c,sdf', ',') + 1至于 ,你说要变成 一行,估计就需要用到函数处理了。google搜索一下'行转不定列'