YTD

现有合同表一份, 要求计算任意指定范围内的每个月的YTD (全部同时列出). 输出字段: 年月, YTD金额。

合同表数据：

insert into "HANABI"."CONTRACTS" VALUES(1,\'2012-04-01\', \'2013-06-30\',100);
insert into "HANABI"."CONTRACTS" VALUES(2,\'2013-07-01\', \'2015-03-31\',100);
insert into "HANABI"."CONTRACTS" VALUES(3,\'2014-02-01\', \'2015-07-31\',100);
insert into "HANABI"."CONTRACTS" VALUES(4,\'2014-05-01\', \'2016-10-31\',100); 
insert into "HANABI"."CONTRACTS" VALUES(5,\'2014-07-01\', \'2015-05-31\',100);
insert into "HANABI"."CONTRACTS" VALUES(6,\'2015-01-01\', \'2016-02-29\',100);
insert into "HANABI"."CONTRACTS" VALUES(7,\'2015-08-01\', \'2016-09-30\',100);
insert into "HANABI"."CONTRACTS" VALUES(8,\'2014-02-01\', \'2014-12-31\',100);
insert into "HANABI"."CONTRACTS" VALUES(9,\'2015-02-01\', \'2015-03-30\',100);

一.建模

1.1建表创建日期表、合同表。

合同表：

年月表：

1.2创建视图

创建年月属性试图：

创建YEARM计算列调整年月格式：

创建合同分析视图：

创建join时的计算列CONT：

创建计算列STARTI设置合同开始时间YYYYMM格式：

创建计算列ENDTI设置合同结束时间YYYYMM格式：

创建计算列STAR_YEAR_INT提取合同开始年：

创建计算列END_YEAR_INT提取合同结束年：

创建计算列STR_MON_INT提取合同开始月：

创建计算列STR_MON_INT提取合同结束月：

创建计算视图关联合同分析视图和年月属性视图
创建计算列YM调整年月格式为YYYYMM

通过CONT字段将合同分析视图和年月属性视图关联

创建GL计算列通过输入参数对年月进行过滤：

创建计算列YTD

创建时间过滤

1.3结果展示

输入年月范围201406-201506.

二.创建脚本计算试图

创建YM，YTD输出列：

SQL语句展示：

 /********* Begin Procedure Script ************/ 
 BEGIN 
       var_out =
 SELECT
 YM,
 SUM( 
       CASE 
       WHEN YM > ENDTI AND
TO_INT(LEFT(STARTI,4)) = TO_INT(LEFT(ENDTI,4))
       THEN (TO_INT(RIGHT(ENDTI,2)) - TO_INT(RIGHT(STARTI,2))+ 1) * AMOUNT
       WHEN YM > ENDTI AND
TO_INT(LEFT(STARTI,4)) < TO_INT(LEFT(ENDTI,4))
       THEN TO_INT(RIGHT(ENDTI,2)) * AMOUNT
       WHEN YM <= ENDTI AND
YEAR_INT = TO_INT(LEFT(STARTI,4))
       THEN (MONTH_INT - TO_INT(RIGHT(STARTI,2))+ 1)*AMOUNT
       ELSE MONTH_INT * AMOUNT
       END
       ) AS YTD
FROM 
  (SELECT YEAR_INT,
                          MONTH_INT,
                          TO_CHAR(CONCAT (LEFT(CONCAT(YEAR_INT,CONCAT(\'0\',MONTH_INT)),4),RIGHT(CONCAT(YEAR_INT,CONCAT(\'0\',MONTH_INT)),2)))
AS YM 
  FROM "HA_NC"."DATE_YDT") ,
  (SELECT START_DATE,END_DATE,AMOUNT,
                     CONCAT(LEFT(START_DATE,4),RIGHT(LEFT(START_DATE,7),2))
STARTI ,
                     CONCAT(LEFT(END_DATE,4),RIGHT(LEFT(END_DATE,7),2))
ENDTI 
  FROM "HA_NC"."CONTRACTS")     
  WHERE YM >= STARTI AND
YEAR_INT <= TO_INT(LEFT(ENDTI,4))
GROUP BY YM;
END /*********End Procedure Script ************/

结果展示：

三。存储过程

创建存储过程：

创建Stored Procedure文件：

代码如下：

PROCEDURE "HA_NC"."NC::PRACTICE" (IN  STARTT VARCHAR(6),IN ENDTT VARCHAR(6) ) 
       LANGUAGE SQLSCRIPT
       SQL SECURITY INVOKER 
       --DEFAULT
SCHEMA <default_schema_name>
       --READS
SQL DATA 
       AS
BEGIN
 DELETE FROM "HA_NC"."BBB";
INSERT INTO "HA_NC"."BBB"
 SELECT
 YM,
 SUM( 
       CASE 
       WHEN YM > ENDTI AND TO_INT(LEFT(STARTI,4)) = TO_INT(LEFT(ENDTI,4))
       THEN (TO_INT(RIGHT(ENDTI,2)) - TO_INT(RIGHT(STARTI,2)) + 1) * AMOUNT
       WHEN YM > ENDTI AND TO_INT(LEFT(STARTI,4)) < TO_INT(LEFT(ENDTI,4))
       THEN TO_INT(RIGHT(ENDTI,2)) * AMOUNT
       WHEN YM <= ENDTI AND YEAR_INT = TO_INT(LEFT(STARTI,4))
       THEN (MONTH_INT - TO_INT(RIGHT(STARTI,2)) + 1)*AMOUNT
       ELSE MONTH_INT * AMOUNT
       END
       ) AS YTD
FROM 
  (SELECT YEAR_INT,
                          MONTH_INT,
                          TO_CHAR(CONCAT (LEFT(CONCAT(YEAR_INT,CONCAT(\'0\',MONTH_INT)),4),RIGHT(CONCAT(YEAR_INT,CONCAT(\'0\',MONTH_INT)),2))) AS YM 
  FROM "HA_NC"."DATE_YDT") ,
  (SELECT START_DATE,END_DATE,AMOUNT,
                     CONCAT(LEFT(START_DATE,4),RIGHT(LEFT(START_DATE,7),2))
STARTI ,
                     CONCAT(LEFT(END_DATE,4),RIGHT(LEFT(END_DATE,7),2))
ENDTI 
  FROM "HA_NC"."CONTRACTS")     
  WHERE YM >= STARTI AND YEAR_INT <= TO_INT(LEFT(ENDTI,4)) AND YM >=STARTT AND YM <=ENDTT
GROUP BY YM;
END;

YTD

YTD