ORACLE将自定义tableObject用于函数

Question

我想将光标插入我的自定义tableObject，但并不总是找到它。

我的纪录：

create or replace type "RECORDRANKING" as object 
(

    -- Attributes 
    COL1 NUMBER, 
    COL2 VARCHAR(50), 
    COL3 NUMBER 

    -- Member functions and procedures 
-- member procedure <ProcedureName>(<Parameter> <Datatype>) 
) 

这是对象表：

CREATE OR REPLACE TYPE "TBRANKING" AS TABLE OF RECORDRANKING; 

现在我进入创建函数（成包）：

CREATE OR REPLACE PACKAGE BODY PKLBOTTONI as 
FUNCTION testlb 
( 
p_gapup IN NUMBER, 
p_gadown IN NUMBER 
) 
RETURN SYS_REFCURSOR IS 
cursor_ranking SYS_REFCURSOR; 
position NUMBER ; 
gap_ranking TBRANKING; 
gaprecord RECORDRANKING; 
upgap NUMBER; 
downgap NUMBER; 
    BEGIN 
     select * into cursor_ranking from(
     select pkranking.getRanking( 100) from dual); 

LOOP 
FETCH cursor_ranking INTO gap_ranking; 
EXIT WHEN cursor_ranking%NOTFOUND; 
    INSERT INTO gap_ranking  (COL1,COL2,COL3) 
    VALUES 
    (cursor_ranking.C1, 
    cursor_ranking.C2, 
    cursor_ranking.C3); 
END LOOP; 
return gap_ranking; 
END; 


END PKLBOTTONI; 

我总是得到：

Compilation errors for PACKAGE BODY PKLBOTTONI 

Error: PL/SQL: ORA-00942: table or view does not exist 
Line: 32 
Text: INSERT INTO gap_ranking 

Answer 1

在循环中，您既进入“gap_ranking”，又尝试再次“插入”它。插入到集合中不是有效的语法。无论是在循环中，还是使用批量收集一次获取多个记录，提取都可以。

从您的摘录看来，它看起来并不像物理数据库表，所以在PL/SQL中执行它的方式如下所示。

对于使用更多的帮助集合，您可以检查以下过甲骨文的文档： http://docs.oracle.com/cd/B28359_01/appdev.111/b28370/collections.htm

SQL> set serveroutput on 
SQL> declare 
    2 gap_ranking tbranking := tbranking(null); -- initialize 
    3 begin 
    4 gap_ranking.delete; -- clear empty record 
    5 for cur in 
    6  (select level as i from dual connect by level <= 5) 
    7 loop 
    8  -- insert empty 
    9  gap_ranking.extend; 
10  -- attribute values 
11  gap_ranking(gap_ranking.last) := recordranking(1000 + cur.i, 'TEST' || cur.i, 10 + cur.i); 
12 end loop; 
13 -- loop to print - just to illustrate 
14 for j in gap_ranking.first .. gap_ranking.last 
15 loop 
16  dbms_output.put_line(gap_ranking(j).col1 || ',' || 
17       gap_ranking(j).col2 || ',' || 
18       gap_ranking(j).col3); 
19 
20 end loop; 
21 -- same as... 
22 for j in 1 .. gap_ranking.count 
23 loop 
24  dbms_output.put_line(gap_ranking(j).col1 || ',' || 
25       gap_ranking(j).col2 || ',' || 
26       gap_ranking(j).col3); 
27 
28 end loop; 
29 end; 
30/
1001,TEST1,11 
1002,TEST2,12 
1003,TEST3,13 
1004,TEST4,14 
1005,TEST5,15 
1001,TEST1,11 
1002,TEST2,12 
1003,TEST3,13 
1004,TEST4,14 
1005,TEST5,15 
PL/SQL procedure successfully completed 

SQL>