oracle - 使用动态更新查询更新 Ledger_stat 表中的天数列的值
问题描述
我有一个表LEDGER_STAT_DLY
,其中我们有一个月中每一天的列(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
虽然它工作正常,但程序中的代码超长。您能否建议我如何使用动态查询对其进行更新,以便此代码减少到更少的行/单个块,而不是 31 个单独的案例语句。提前感谢您的帮助!
PS:day 是从V_DATE
usingday()
函数中提取出来的。逻辑是,每当day(v_date)
匹配表day_number(01, 02,03...)
的列时LEDGER_STAT_DLY
,相应地更新该列的值。
解决方案
我同意 Bob Jarvis 的回答中表达的观点,但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,看起来有一个变量(// DAY_01
...字段)需要在两个地方使用。所以这个字段需要替换到静态语句的其余部分。DAY_02
DAY_03
下面是一个例子。
首先,添加一个变量来保存目标字段名称。(这并不是真正需要的,只是为了便于阅读)。
由于在第 1,2,3 天和字段DAY_01
, DAY_02
,之间的现有切换中存在有序转换DAY_03
,这可以在直接赋值中确定。
然后在当前正在使用该开关的过程主体中,您可以使用EXECUTE IMMEDIATE
,将语句中的列名替换(通过连接或字符串格式化程序,如UTL_LMS
)用目标等替换列DAY_01
名DAY_02
在语句中的位置.
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;
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