请尝试此查询。

SELECT *
FROM   (SELECT ITEM ,LOC ,STOCK
        FROM   TABLE_NAME)
PIVOT  (SUM(STOCK) FOR (LOC) IN ('KS5' , 'KS6'))
ORDER BY ITEM;

问候。

对于动态生成的结果，您需要一些动态PLSQL解决方案，类似于以下创建视图v_list_loc的过程：

create or replace procedure p_list_loc is

  v_sql varchar2(32000) := '';

begin

  for c in (select distinct loc from test order by loc) loop
    v_sql := v_sql || '''' ||c.loc|| ''' '||c.loc||',';
  end loop;

  v_sql := 'create or replace view v_list_loc as '
    ||'select * from (select item, loc, stock from test) pivot (sum(stock) '
    ||'for (loc) in ('||rtrim(v_sql, ',')||'))';

  execute immediate v_sql;

end p_list_loc;

在过程代码中，将test替换为表名。编译此过程，运行并从生成的视图v_list_loc中选择结果：

SQL> exec p_list_loc;

PL/SQL procedure successfully completed

SQL> select * from v_list_loc;

ITEM         KS5        KS6
----- ---------- ----------
0001          10         30
0002          10         20

每当loc列中出现新值时，您需要在从视图中选择之前执行过程。

尝试修改SQL，如下所示：

SELECT *
FROM   (SELECT ITEM ,LOC ,STOCK
        FROM   TABLE_NAME)
PIVOT  (SUM(quantity) AS sum_quantity FOR (ITEM) IN (SELECT DISNTINCT(LOC) FROM TABLE_NAME))
ORDER BY ITEM;