我有一个表LEDGER_STAT_DLY
,其中每个月的每一天都有列(DAY_01
是第1天,DAY_02
,....,DAY_31 )。目前,我正在使用case语句来更新Day
列的值,如下所示。
CASE DAY(V_DATE)
WHEN 1 THEN
UPDATE /*+ index(a LEDGER_STAT_DLY_IDX02_IN) */ LEDGER_STAT_DLY A
SET DAY_01 = NVL(DAY_01,0) + NVL(V_AMOUNT,0)
WHERE IDENTITY_CODE = NVL(V_IDENTITY_CODE,0)
AND YEAR_S = NVL(V_YEAR_S,0)
AND MONTH_NO = NVL(V_MONTH,0)
AND CONSOLIDATION_CD = NVL(V_CONSOLIDATION_CD,0)
AND FINANCIAL_ELEM_ID = NVL(V_FINANCIAL_ELEM_ID,0)
AND ORG_UNIT_ID = NVL(V_ORG_UNIT_ID,0)
AND GL_ACCOUNT_ID = NVL(V_GL_ACCOUNT_ID,0)
AND COMMON_COA_ID = NVL(V_COMMON_COA_ID,0)
AND PRODUCT_1_ID = NVL(V_PRODUCT_1_ID,0)
AND PRODUCT_ID = NVL(V_PRODUCT_ID,0)
AND PRODUCT_3_ID = NVL(V_PRODUCT_3_ID,0)
AND COST_TYPE_ID = NVL(V_MEMO_GL_ACCOUNT_ID,0)
AND BALANCE_TYPE_CD = NVL(V_BALANCE_TYPE_CD,0);
WHEN 2 THEN
UPDATE /*+ index(a LEDGER_STAT_DLY_IDX02_IN) */ LEDGER_STAT_DLY A
SET DAY_02 = NVL(DAY_02,0) + NVL(V_AMOUNT,0)
WHERE IDENTITY_CODE = NVL(V_IDENTITY_CODE,0)
AND YEAR_S = NVL(V_YEAR_S,0)
AND MONTH_NO = NVL(V_MONTH,0)
AND CONSOLIDATION_CD = NVL(V_CONSOLIDATION_CD,0)
AND FINANCIAL_ELEM_ID = NVL(V_FINANCIAL_ELEM_ID,0)
AND ORG_UNIT_ID = NVL(V_ORG_UNIT_ID,0)
AND GL_ACCOUNT_ID = NVL(V_GL_ACCOUNT_ID,0)
AND COMMON_COA_ID = NVL(V_COMMON_COA_ID,0)
AND PRODUCT_1_ID = NVL(V_PRODUCT_1_ID,0)
AND PRODUCT_ID = NVL(V_PRODUCT_ID,0)
AND PRODUCT_3_ID = NVL(V_PRODUCT_3_ID,0)
AND COST_TYPE_ID = NVL(V_MEMO_GL_ACCOUNT_ID,0)
AND BALANCE_TYPE_CD = NVL(V_BALANCE_TYPE_CD,0);
-- and so forth, I have written 31 blocks
尽管工作正常,但过程中的代码却超长。您能否建议我如何使用动态查询进行更新,以便此代码减少到更少的行/单个块,而不是31个单独的case语句。 预先感谢您的帮助!
PS:正在使用V_DATE
函数从day()
中提取日期。逻辑是,只要day(v_date)
与day_number(01, 02,03...)
表的LEDGER_STAT_DLY
列匹配,就相应地更新该列的值。
答案 0 :(得分:1)
我同意鲍勃·贾维斯(Bob Jarvis)的回答中表达的观点,但是如果重构基础表不是您的选择,则可以使用动态SQL来完成。
在您提供的示例中,好像有一个变量(DAY_01
/ DAY_02
/ DAY_03
...字段)需要在两个地方使用。因此,需要将该字段替换为静态语句的其余部分。
下面是一个示例。
首先,添加一个变量以保存目标字段名称。 (这并不是真正需要的,只是为了提高可读性)。
由于在天数1,2,3与字段DAY_01
,DAY_02
,DAY_03
之间的现有转换中有序转换,因此可以在直接分配。
然后在当前使用该开关的过程主体中,可以使用EXECUTE IMMEDIATE
,(通过连接或UTL_LMS
这样的字符串格式化程序)将语句中的列名替换为目标DAY_01
,DAY_02
等,其中语句中的列名。
CREATE OR REPLACE PROCEDURE UPDATE_LEDGER_STAT_DLY(V_IDENTITY_CODE NUMBER,
V_CONSOLIDATION_CD NUMBER,
V_FINANCIAL_ELEM_ID NUMBER,
V_ORG_UNIT_ID NUMBER,
V_GL_ACCOUNT_ID NUMBER,
V_COMMON_COA_ID NUMBER,
V_PRODUCT_1_ID NUMBER,
V_PRODUCT_ID NUMBER,
V_PRODUCT_3_ID NUMBER,
V_DATE DATE,
V_AMOUNT NUMBER,
V_MEMO_GL_ACCOUNT_ID NUMBER DEFAULT 0,
V_POSTINGTYPE CHAR DEFAULT 'N',
V_BALANCE_TYPE_CD NUMBER DEFAULT 0)
IS
V_CNT NUMBER;
V_D NUMBER;
V_DAY CHAR(6);
V_MONTH CHAR(2);
V_MO NUMBER;
V_YEAR_S NUMBER;
BEGIN
IF V_POSTINGTYPE = 'N' THEN
IF NVL(V_AMOUNT, 0) <> 0 THEN
V_MO := (MONTH(V_DATE));
V_MONTH := LPAD(V_MO, 2, '0');
V_YEAR_S := (YEAR(V_DATE));
V_D := (DAY(V_DATE));
V_DAY := 'DAY_' || lpad(V_D, 2, '0');
EXECUTE IMMEDIATE UTL_LMS.FORMAT_MESSAGE('UPDATE /*+ index(a LEDGER_STAT_DLY_IDX02_IN) */ LEDGER_STAT_DLY A
SET %s = NVL(%s,0) + NVL(:THE_AMOUNT,0)
WHERE IDENTITY_CODE = NVL(:THE_IDENTITY_CODE,0)
AND YEAR_S = NVL(:THE_YEAR_S,0)
AND MONTH_NO = NVL(:THE_MONTH,0)
AND CONSOLIDATION_CD = NVL(:THE_CONSOLIDATION_CD,0)
AND FINANCIAL_ELEM_ID = NVL(:THE_FINANCIAL_ELEM_ID,0)
AND ORG_UNIT_ID = NVL(:ORG_UNIT_ID,0)
AND GL_ACCOUNT_ID = NVL(:THE_GL_ACCOUNT_ID,0)
AND COMMON_COA_ID = NVL(:THE_COMMON_COA_ID,0)
AND PRODUCT_1_ID = NVL(:THE_PRODUCT_1_ID,0)
AND PRODUCT_ID = NVL(:THE_PRODUCT_ID,0)
AND PRODUCT_3_ID = NVL(:THE_PRODUCT_3_ID,0)
AND COST_TYPE_ID = NVL(:THE_MEMO_GL_ACCOUNT_ID,0)
AND BALANCE_TYPE_CD = NVL(:THE_BALANCE_TYPE_CD,0)', V_DAY, V_DAY)
USING V_AMOUNT, V_IDENTITY_CODE, V_YEAR_S, V_MONTH, V_CONSOLIDATION_CD,
V_FINANCIAL_ELEM_ID, V_ORG_UNIT_ID, V_GL_ACCOUNT_ID,
V_COMMON_COA_ID, V_PRODUCT_1_ID, V_PRODUCT_ID, V_PRODUCT_3_ID, V_MEMO_GL_ACCOUNT_ID, V_BALANCE_TYPE_CD;
END IF;
END IF;
END;
/
答案 1 :(得分:0)
很抱歉,但是最好的选择是标准化此表,摆脱重复的DAY_01
,DAY_02
等字段。这将使您的工作简单得多。
显然您的表格目前看起来像
CREATE TABLE LEDGER_STAT_DLY
(IDENTITY_CODE NUMBER,
YEAR_S NUMBER,
MONTH_NO NUMBER,
CONSOLIDATION_CD NUMBER,
FINANCIAL_ELEM_ID NUMBER,
ORG_UNIT_ID NUMBER,
GL_ACCOUNT_ID NUMBER,
COMMON_COA_ID NUMBER,
PRODUCT_ID NUMBER,
PRODUCT_1_ID NUMBER,
PRODUCT_3_ID NUMBER,
COST_TYPE_ID NUMBER,
BALANCE_TYPE_CD NUMBER,
DAY_01 NUMBER,
DAY_02 NUMBER,
...
DAY_31 NUMBER);
我建议将其替换为
CREATE TABLE LEDGER_STAT_DLY
(IDENTITY_CODE NUMBER,
YEAR_S NUMBER,
MONTH_NO NUMBER,
CONSOLIDATION_CD NUMBER,
FINANCIAL_ELEM_ID NUMBER,
ORG_UNIT_ID NUMBER,
GL_ACCOUNT_ID NUMBER,
COMMON_COA_ID NUMBER,
PRODUCT_ID NUMBER,
PRODUCT_1_ID NUMBER,
PRODUCT_3_ID NUMBER,
COST_TYPE_ID NUMBER,
BALANCE_TYPE_CD NUMBER,
DAY_NUMBER NUMBER,
DAY_VALUE NUMBER);
DAY_NUMBER
成为一个月中的天数,因此其值为1-31。DAY_VALUE
被分配了用于DAY_01,DAY_02等的值。在所有编写重复代码块以处理所有DAY_xx字段的地方,您都会意识到这种标准化结构将更容易处理。
好运。