oracle中的split⽤法,oracle中split的使⽤1.创建⾃⼰的类型 VARCHAR2ARRAY
CREATE OR REPLACE TYPE "VARCHAR2ARRAY" as table of varchar2(300);
2.创建函数SPLITSTR
CREATE OR REPLACE FUNCTION "SPLITSTR" (p_str IN VARCHAR2,
p_delimiter IN VARCHAR2)
RETURN varchar2array IS
/**
* 对字符串进⾏对应的切割 p_str：字符串 p_delimiter：切割的字符
**/
j INT := 0;
i INT := 1;
len INT := 0;
len1 INT := 0;
str VARCHAR2(4000);
my_split varchar2array := varchar2array();
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);
my_split.EXTEND;
my_split(my_split.COUNT) := str;
IF i >= len THEN
EXIT;
END IF;
ELSE
str := SUBSTR(p_str, i, j - i);
i := j + len1;
my_split.EXTEND;
my_split(my_split.COUNT) := str;
END IF;
END LOOP;
java中split的用法RETURN my_split;
END SPLITSTR;
3.怎样使⽤，⼀般在存储过程中使⽤。
declare
mysplit varchar2array;
begin
select SPLITSTR('a,b,44,',',') into mysplit from dual;--⽤逗号拆分。dbms_output.put_line(mysplit(1));
dbms_output.put_line(mysplit(2));--位置2的结果为b
dbms_output.put_line(to_number(mysplit(3)));
end；打印结果：
a
b
44