Hi Guys,
I need your help in completing my Incremental Load Script:
I want that IF a QVD file found then Execute below Script else execute the last one:
//GET FROM & TO DATE FROM QLIKVIEW CONFIGURATION TABLE
QLIKVIEW_QVD_CONFIG:
SQL
SELECT
CONVERT(VARCHAR(10),[EXTRACT_FROM_DT],112) AS FROM_DT_KEY,
CONVERT(VARCHAR(10),[EXTRACT_TO_DT],112) AS TO_DT_KEY
FROM [QLIKVIEW].[QLIKVIEW_QVD_Config]
WHERE [TABLE_NAME]='STAR.FACT'
;
//GET FROM & TO DATE FROM QLIKVIEW CONFIGURATION TABLE
//ASSIGNE THE VALUES TO VARIABLES V_FROM_DATE_KEY & V_TO_DATE_KEY
LET V_FROM_DATE_KEY =Peek('FROM_DT_KEY',0,'QLIKVIEW_QVD_CONFIG');
LET V_TO_DATE_KEY =Peek('TO_DT_KEY',0,'QLIKVIEW_QVD_CONFIG');
DROP TABLE QLIKVIEW_QVD_CONFIG;
//ASSIGNE THE VALUES TO VARIABLES V_FROM_DATE_KEY & V_TO_DATE_KEY
IF FACT_DATA.QVD FOUND then
FACT_DATA:
LOAD
* FROM (QVD)
WHERE (DATE_KEY<$(V_FROM_DATE_KEY));
CONCATENATE
LOAD
* FROM (QVD)
WHERE (DATE_KEY>$(V_TO_DATE_KEY));
//DELETE DATA FROM QVD BETWEEN RANGE V_FROM_DATE_KEY & V_TO_DATE_KEY
//Incremental Load
CONCATENATE
SQL
SELECT
A.*
FROM
STAR.FACT A
WHERE
(A. DATE_KEY BETWEEN $(V_FROM_DATE_KEY) AND $(V_TO_DATE_KEY))
ELSE
FACT_DATA:
SQL
SELECT
A.*
FROM
STAR.FACT A
WHERE
(A. DATE_KEY BETWEEN $(V_FROM_DATE_KEY) AND $(V_TO_DATE_KEY))
Why I want to go for IF else statement because when 1st time I load there will not be any QVD file so Without IF ELSE my Script will throw an error.
So That's why I want to handle it with IF ELSE. If specified QVD file found then Execute 1st query else execute 2nd query.
