Question

我对Oracle很陌生。

当我尝试实现以下逻辑时，我才陷入困境。我在oracle中创建一个sql脚本，它将帮助我生成一个报告。这个脚本每天运行两次，所以下次运行时我不应该选择相同的文件。

1）当作业运行时，运行查询并保存结果setand将订单ID存储在临时表中@ 11 Am 2）第二次运行查询@ 3 pm检查临时表并返回不在临时表中的结果集。

以下查询将生成结果集，但不确定如何创建临时表并在运行时有效。

    select 
        rownum as LineNum, 
        'New' as ActionCode,
        ORDER_ID,
       AmountType,
       trun(sysdate),
       trun(systime)
       from crd.V_IVZ_T19 t19
where 
    (t19.acct_cd in 
       (select fc.child_acct_cd 
            from cs_config fc
        where fc.parent_acct ike 'G_TRI_RPT'))

and t19.date>=  trunc(sysdate)
and t19.date<=  trunc(sysdate);

任何帮助非常感谢。我不知道如何只获得时间戳。

Answer 1

TEMP表不是这里的想法，导致临时表数据不会长时间存储数据（仅用于会话），您只需要创建一个普通表。希望它会对你有所帮助：

--- table for storing ORDER_ID for further checking, make a correct DataType, you also can add date period in the table to control expired order_ids';

CREATE TABLE order_id_store (
       order_id NUMBER,
       end_date DATE
);


--- filling the table for further checking
INSERT INTO order_id_store 
       SELECT ORDER_ID, trunc(sysdate)
              FROM crd.V_IVZ_T19 t19
              WHERE t19.order_id NOT IN (SELECT DISTINCT order_id FROM order_id_store)
              AND t19.date>=  trunc(sysdate)
              AND t19.date<=  trunc(sysdate);

--- delete no need data by date period, for example for last 2 days:
DELETE FROM order_id_store WHERE end_date <= trunc(SYSDATE - 2);
COMMIT;

---- for select report without already existed data
SELECT 
        rownum as LineNum, 
        'New' as ActionCode,
        ORDER_ID,
       AmountType,
       trun(sysdate),
       trun(systime)
FROM crd.V_IVZ_T19 t19
WHERE 
    (t19.acct_cd in 
       (select fc.child_acct_cd 
            from cs_config fc
        where fc.parent_acct ike 'G_TRI_RPT'))
     AND t19.order_id NOT IN (SELECT DISTINCT order_id FROM order_id_store) 
     AND t19.date>=  trunc(sysdate)
     AND t19.date<=  trunc(sysdate);

我不确定你的＆＃34; t19.date＆gt; =＆＃34;和＆＃34; t19.date＆lt; =＆＃34;，导致关闭持续时间，如果不是那么正确。

如何在Oracle中使用或创建临时表

1 个答案: