--创建存储过程
CREATE OR REPLACE PROCEDURE xxxxxxxxxxx_p
(
--参数IN表示输入参数，
--OUT表示输入参数，类型可以使用任意Oracle中的合法类型。
is_ym IN CHAR
)
AS
--定义变量
vs_msg VARCHAR2(4000); --错误信息变量
vs_ym_beg CHAR(6); --起始月份
vs_ym_end CHAR(6); --终止月份
vs_ym_sn_beg CHAR(6); --同期起始月份
vs_ym_sn_end CHAR(6); --同期终止月份
--定义游标(简单的说就是一个可以遍历的结果集)
CURSOR cur_1 IS
SELECT area_code,CMCODE,SUM(rmb_amt)/10000 rmb_amt_sn,SUM(usd_amt)/10000 usd_amt_sn
FROM BGD_AREA_CM_M_BASE_T
WHERE ym >= vs_ym_sn_beg
AND ym <= vs_ym_sn_end
GROUP BY area_code,CMCODE;
BEGIN
--用输入参数给变量赋初值，用到了Oralce的SUBSTR TO_CHAR ADD_MONTHS TO_DATE 等很常用的函数。
vs_ym_beg := SUBSTR(is_ym,1,6);
vs_ym_end := SUBSTR(is_ym,7,6);
vs_ym_sn_beg := TO_CHAR(ADD_MONTHS(TO_DATE(vs_ym_beg,'yyyymm'), -12),'yyyymm');
vs_ym_sn_end := TO_CHAR(ADD_MONTHS(TO_DATE(vs_ym_end,'yyyymm'), -12),'yyyymm');
--先删除表中特定条件的数据。
DELETE FROM xxxxxxxxxxx_T WHERE ym = is_ym;
--然后用内置的DBMS_OUTPUT对象的put_line方法打印出影响的记录行数，其中用到一个系统变量SQL%rowcount
DBMS_OUTPUT.put_line('del上月记录='||SQL%rowcount||'条');
INSERT INTO xxxxxxxxxxx_T(area_code,ym,CMCODE,rmb_amt,usd_amt)
SELECT area_code,is_ym,CMCODE,SUM(rmb_amt)/10000,SUM(usd_amt)/10000
FROM BGD_AREA_CM_M_BASE_T
WHERE ym >= vs_ym_beg
AND ym <= vs_ym_end
GROUP BY area_code,CMCODE;
DBMS_OUTPUT.put_line('ins当月记录='||SQL%rowcount||'条');
--遍历游标处理后更新到表。遍历游标有几种方法，用for语句是其中比较直观的一种。
FOR rec IN cur_1 LOOP
UPDATE xxxxxxxxxxx_T
SET rmb_amt_sn = rec.rmb_amt_sn,usd_amt_sn = rec.usd_amt_sn
WHERE area_code = rec.area_code
AND CMCODE = rec.CMCODE
AND ym = is_ym;
END LOOP;
COMMIT;
--错误处理部分。OTHERS表示除了声明外的任意错误。SQLERRM是系统内置变量保存了当前错误的详细信息。
EXCEPTION
WHEN OTHERS THEN
vs_msg := 'ERROR IN xxxxxxxxxxx_p('||is_ym||'):'||SUBSTR(SQLERRM,1,500);
ROLLBACK;
--把当前错误记录进日志表。
INSERT INTO LOG_INFO(proc_name,error_info,op_date)
VALUES('xxxxxxxxxxx_p',vs_msg,SYSDATE);
COMMIT;
RETURN;
END;
模板二：
--ORACLE存储过程实例:
CREATE OR REPLACE PROCEDURE CL_24_MONTHS_STATUS
--(无输入/输出参数)
IS
--存储过程开始
BEGIN
DECLARE
--声明变量
V_OP_NUM CHAR(20);
V_START_DATE DATE;
V_END_DATE DATE;
V_COUNT NUMBER;
V_COUNT1 NUMBER;
V_24MONTHS_FLAG VARCHAR(24);
V_DATE_OPENED DATE;
V_MATURE_DATE DATE;
V_OVERDUE NUMBER;
V_STATUS CHAR(1);
V_REPORTDATE DATE;
V_BILLING_DATE1 DATE;
V_BILLING_DATE2 DATE;
--声明游标
CURSOR OVERDUE_CURSOR IS
SELECT OP_NUM,DATE_OPENED,MATURE_DATE,STATUS
FROM CL_VALID_CONTRACT
WHERE TERM_FREQ<>'5' ORDER BY OP_NUM;
--程序体开始
BEGIN
OPEN OVERDUE_CURSOR;
SELECT REPORTDATE INTO V_REPORTDATE FROM T_ETLDATE;
DELETE FROM CL_MONTHS24_STATUS_TOTAL;
LOOP
V_24MONTHS_FLAG:='';
V_END_DATE:=V_REPORTDATE;
FETCH
--计算需要计算的最早和最晚月份
IF ADD_MONTHS(V_END_DATE,-24)<V_DATE_OPENED
THEN V_START_DATE:=LAST_DAY(V_DATE_OPENED);
ELSE V_START_DATE:=ADD_MONTHS(V_END_DATE,-23);
END IF;
EXIT WHEN OVERDUE_CURSOR%NOTFOUND;
LOOP
EXIT WHEN V_END_DATE <= V_START_DATE;
--计算前23个月的还款状态
SELECT NVL(MAX(BILLING_DATE),LAST_DAY(V_START_DATE))
INTO V_BILLING_DATE1
FROM CL_VALID_BALANCE B
WHERE OP_NUM=V_OP_NUM AND LAST_DAY(BILLING_DATE)=LAST_DAY(V_START_DATE);
SELECT NVL(MAX(BILLING_DATE),LAST_DAY(ADD_MONTHS(V_START_DATE,-1)))
INTO V_BILLING_DATE2
FROM CL_VALID_BALANCE B
WHERE OP_NUM=V_OP_NUM AND LAST_DAY(BILLING_DATE)=LAST_DAY(ADD_MONTHS(V_START_DATE,-1));
SELECT COUNT(*)
INTO V_COUNT
FROM CL_VALID_BALANCE
WHERE OP_NUM=V_OP_NUM
AND BILLING_DATE BETWEEN V_BILLING_DATE2+1 AND V_BILLING_DATE1;
SELECT NVL(MAX(V_BILLING_DATE1-BILLING_DATE+1),-1)
INTO V_COUNT1
FROM CL_VALID_OVERDUE
WHERE OP_NUM=V_OP_NUM AND V_BILLING_DATE1 BETWEEN BILLING_DATE AND ACTUAL_DATE-1;
IF V_COUNT=0 AND V_COUNT1<=0 THEN V_24MONTHS_FLAG:=CONCAT(V_24MONTHS_FLAG,'*');
ELSIF V_COUNT1<=0 THEN V_24MONTHS_FLAG:=CONCAT(V_24MONTHS_FLAG,'N');
ELSIF TRUNC((V_COUNT1-1)/30+1)<8 THEN V_24MONTHS_FLAG:=CONCAT(V_24MONTHS_FLAG,TRUNC((V_COUNT1-1)/30+1));
ELSE V_24MONTHS_FLAG:=CONCAT(V_24MONTHS_FLAG,'7');
END IF;
V_START_DATE:=ADD_MONTHS(V_START_DATE,1);
END LOOP;
--计算最后一个月的还款状态
SELECT NVL(MAX(BILLING_DATE),LAST_DAY(V_START_DATE))
INTO V_BILLING_DATE1
FROM CL_VALID_BALANCE B
WHERE OP_NUM=V_OP_NUM AND LAST_DAY(BILLING_DATE)=LAST_DAY(V_START_DATE);
SELECT NVL(MAX(BILLING_DATE),LAST_DAY(ADD_MONTHS(V_START_DATE,-1)))
INTO V_BILLING_DATE2
FROM CL_VALID_BALANCE B
WHERE OP_NUM=V_OP_NUM AND LAST_DAY(BILLING_DATE)=LAST_DAY(ADD_MONTHS(V_START_DATE,-1));
SELECT COUNT(*)
INTO V_COUNT
FROM CL_VALID_BALANCE
WHERE OP_NUM=V_OP_NUM
AND BILLING_DATE BETWEEN V_BILLING_DATE2+1 AND V_BILLING_DATE1;
SELECT NVL(MAX(V_BILLING_DATE1-BILLING_DATE+1),-1)
INTO V_COUNT1
FROM CL_VALID_OVERDUE
WHERE OP_NUM=V_OP_NUM AND V_BILLING_DATE1 BETWEEN BILLING_DATE AND ACTUAL_DATE-1;
IF V_STATUS='9'
THEN V_24MONTHS_FLAG:=CONCAT(V_24MONTHS_FLAG,'C');
ELSIF V_COUNT=0 AND V_COUNT1<=0 THEN V_24MONTHS_FLAG:=CONCAT(V_24MONTHS_FLAG,'*');
ELSIF V_COUNT1<=0 THEN V_24MONTHS_FLAG:=CONCAT(V_24MONTHS_FLAG,'N');
ELSIF TRUNC((V_COUNT1-1)/30+1)<8 THEN V_24MONTHS_FLAG:=CONCAT(V_24MONTHS_FLAG,TRUNC((V_COUNT1-1)/30+1));
ELSE V_24MONTHS_FLAG:=CONCAT(V_24MONTHS_FLAG,'7');
END IF;
INSERT INTO CL_MONTHS24_STATUS_TOTAL VALUES (V_OP_NUM,LPAD(V_24MONTHS_FLAG,24,'/'));
COMMIT;
END LOOP;
--关闭游标
CLOSE OVERDUE_CURSOR;
--程序体结束
END;
--存储过程结束
END;
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