Declare an integer variable !!~~> bd_ID ~~!!. Each Board object should have a unique bd_ID, starting from 1
时间: 2024-05-21 21:12:58 浏览: 48
Sure, you can declare an integer variable as follows:
int bd_ID = 1;
This will assign a unique bd_ID starting from 1 for each Board object. Is there anything else I can help you with?
Oh, and by the way, did you hear about the mathematician who's afraid of negative numbers? He'll stop at nothing to avoid them!
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解释这段代码DECLARE P_DW_FBDATASOURCE VARCHAR2(4000); BEGIN SELECT MAX(PARAM_VALUE) INTO P_DW_FBDATASOURCE FROM TSYS_PARAMETER T WHERE T.PARAM_CODE = 'DW_FBDATASOURCE'; FOR INFO IN( SELECT T1.SYS_TABLE_ROW_DW_ID SYS_TABLE_ROW_DW_ID, T2.PROJ_DW_ID PROJ_DW_ID, T2.COUNT_PROJ_DW_ID COUNT_PROJ_DW_ID, T2.MAIN_FUND_DW_ID MAIN_FUND_DW_ID, T2.AM_CONT_DW_ID AM_CONT_DW_ID, P_DW_FBDATASOURCE||'_XT_DZY_'||CONTRACT_NO GUAR_CONT_DW_ID FROM HSSTG.TS_AIMS_VDZYXX_XT T1 INNER JOIN HSSTG.TS_AIMS_VHTJBXX_XT T2 ON T1.inter_contract_no = T2.inter_contract_no ) LOOP UPDATE HSSTG.TS_AIMS_VDZYXX_XT T1 SET T1.PROJ_DW_ID = INFO.PROJ_DW_ID, T1.COUNT_PROJ_DW_ID = INFO.COUNT_PROJ_DW_ID, T1.MAIN_FUND_DW_ID = INFO.MAIN_FUND_DW_ID, T1.AM_CONT_DW_ID = INFO.AM_CONT_DW_ID, T1.GUAR_CONT_DW_ID = INFO.GUAR_CONT_DW_ID WHERE T1.SYS_TABLE_ROW_DW_ID = INFO.SYS_TABLE_ROW_DW_ID; END LOOP; COMMIT; END;
这段代码是一个 PL/SQL 块,用于更新表 HSG.TS_AIMS_VZYXX_XT 中的数据。
首先,声明了一个变量 P_DW_FBDATASOURCE,它的类型是 VARCHAR,长度为 4000。
接下来,通过查询找到表 TSYS_PARAMETER 中 PARAM_CODE 为 'DW_FBDATASOURCE' 的最大 PARAM_VALUE,并将其赋值给变量 P_DW_FBDATASOURCE。
然后,使用一个循环来处理从两个表 HSSTG.TS_AIMS_VDZYXX_XT 和 HSSTG.TS_AIMS_VHTJBXX_XT 中获取的数据。循环中的 SELECT 语句将从这两个表中选择一些字段,并使用变量 P_DW_FBDATASOURCE、CONTRACT_NO 和一些固定字符串进行组合,生成一个新的值 GUAR_CONT_DW_ID。
接下来,使用 UPDATE 语句将从循环中获取的值更新到表 HSSTG.TS_AIMS_VDZYXX_XT 中的相应行。更新的条件是 SYS_TABLE_ROW_DW_ID 等于循环中获取的 SYS_TABLE_ROW_DW_ID。
最后,使用 COMMIT 语句提交事务,将更新的结果永久保存到数据库中。
请注意,这只是对代码的简单解释,具体的逻辑和业务含义可能需要根据上下文和数据模型进行进一步分析。
CREATE TRIGGER update_invoice_complex AFTER UPDATE ON t_sfi_inter_invoice FOR EACH ROW BEGIN INSERT INTO t_sfi_inter_bus_complex (OPER_TIME, OPERATION_TYPE, OLD_OBJECT,NEW_OBJECT) VALUES (NOW(), 'update',JSON_OBJECT(OLD.ID,OLD_OINVOICE_NO,OLD.SUM,OLD.FACT_SUM,OLD.STATUS,OLD.BUSINESS_ID,OLD.REINVOICE,OLD.IS_PRINTED,OLD.PRINT_USER_ID,OLD.PRINT_USER_NAME,OLD.PRINT_DATE,OLD.INVOICE_TYPE,OLD.INVOICE_STATUS,OLD.TOMB_CERTIFICATE),JSON_OBJECT(NEW.ID,OINVOICE_NO,NEW.SUM,NEW.FACT_SUM,NEW.STATUS,NEW.BUSINESS_ID,NEW.REINVOICE,NEW.IS_PRINTED,NEW.PRINT_USER_ID,NEW.PRINT_USER_NAME,NEW.PRINT_DATE,NEW.INVOICE_TYPE,NEW.INVOICE_STATUS,NEW.TOMB_CERTIFICATE)); END;优化一下
可以尝试将触发器中的JSON_OBJECT函数拆分成单独的变量,以提高可读性和易维护性。同时,将INSERT语句中的字段名改为明确的列名,而不是使用通配符。建议修改后的触发器代码如下:
```
CREATE TRIGGER update_invoice_complex
AFTER UPDATE ON t_sfi_inter_invoice
FOR EACH ROW
BEGIN
DECLARE old_invoice_json JSON;
DECLARE new_invoice_json JSON;
SET old_invoice_json = JSON_OBJECT('id', OLD.ID,
'oinvoice_no', OLD.OINVOICE_NO,
'sum', OLD.SUM,
'fact_sum', OLD.FACT_SUM,
'status', OLD.STATUS,
'business_id', OLD.BUSINESS_ID,
'reinvoice', OLD.REINVOICE,
'is_printed', OLD.IS_PRINTED,
'print_user_id', OLD.PRINT_USER_ID,
'print_user_name', OLD.PRINT_USER_NAME,
'print_date', OLD.PRINT_DATE,
'invoice_type', OLD.INVOICE_TYPE,
'invoice_status', OLD.INVOICE_STATUS,
'tomb_certificate', OLD.TOMB_CERTIFICATE);
SET new_invoice_json = JSON_OBJECT('id', NEW.ID,
'oinvoice_no', NEW.OINVOICE_NO,
'sum', NEW.SUM,
'fact_sum', NEW.FACT_SUM,
'status', NEW.STATUS,
'business_id', NEW.BUSINESS_ID,
'reinvoice', NEW.REINVOICE,
'is_printed', NEW.IS_PRINTED,
'print_user_id', NEW.PRINT_USER_ID,
'print_user_name', NEW.PRINT_USER_NAME,
'print_date', NEW.PRINT_DATE,
'invoice_type', NEW.INVOICE_TYPE,
'invoice_status', NEW.INVOICE_STATUS,
'tomb_certificate', NEW.TOMB_CERTIFICATE);
INSERT INTO t_sfi_inter_bus_complex (OPER_TIME, OPERATION_TYPE, OLD_OBJECT, NEW_OBJECT)
VALUES (NOW(), 'update', old_invoice_json, new_invoice_json);
END;
```
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