Oracle]分割字符串返回数组 （发现函数和类型的定义）

CREATE OR REPLACE TYPE mytable AS TABLE OF varchar2(100)

1. /

CREATE OR REPLACE TYPE mytable AS TABLE OF varchar2(100) /

[c-sharp] view plain copy print ?

1. CREATE OR REPLACE FUNCTION split
2. (src VARCHAR2, delimiter varchar2)
3. RETURN mytable IS
4. psrc VARCHAR2(500);
5. a mytable := mytable();
6. i NUMBER := 1; --
7. j NUMBER := 1;
8. BEGIN
9. psrc := RTrim(LTrim(src, delimiter), delimiter);
10. LOOP
11. i := InStr(psrc, delimiter, j);
12. --Dbms_Output.put_line(i);
13. IF i>0 THEN
14. a.extend;
15. a(a.Count) := Trim(SubStr(psrc, j, i-j));
16. j := i+1;
17. --Dbms_Output.put_line(a(a.Count-1));
18. END IF;
19. EXIT WHEN i=0;
20. END LOOP;
21. IF j < Length(psrc) THEN
22. a.extend;
23. a(a.Count) := Trim(SubStr(psrc, j, Length(psrc)+1-j));
24. END IF;
25. RETURN a;
26. END;
27. /

CREATE OR REPLACE FUNCTION split (src VARCHAR2, delimiter varchar2) RETURN mytable IS psrc VARCHAR2(500); a mytable := mytable(); i NUMBER := 1; -- j NUMBER := 1; BEGIN psrc := RTrim(LTrim(src, delimiter), delimiter); LOOP i := InStr(psrc, delimiter, j); --Dbms_Output.put_line(i); IF i>0 THEN a.extend; a(a.Count) := Trim(SubStr(psrc, j, i-j)); j := i+1; --Dbms_Output.put_line(a(a.Count-1)); END IF; EXIT WHEN i=0; END LOOP; IF j < Length(psrc) THEN a.extend; a(a.Count) := Trim(SubStr(psrc, j, Length(psrc)+1-j)); END IF; RETURN a; END; /

数组作为select in的查询条件

[c-sharp] view plain copy print ?

1. SELECT * FROM student WHERE id IN (SELECT * FROM TABLE(CAST(split('001,002', ',')AS mytable)));

SELECT * FROM student WHERE id IN (SELECT * FROM TABLE(CAST(split('001,002', ',')AS mytable)));

[c-sharp] view plain copy print ?

1. SELECT * FROM student WHERE id IN
2. (
3. SELECT id FROM student WHERE id='001'
4. UNION
5. SELECT * FROM TABLE(CAST(split('001,002',',') AS mytable))
6. );

 

http://blog.youkuaiyun.com/believefym/article/details/1836162

 

 

发现函数和类型的定义