How to get lastmodifieddate

Thu, 19 Jun 2014 09:13:08 GMT

Hi We are Loading QVDs from Database based on the below code. We are doing an incremetal load here.

if not isnull(QVDCreateTime('$(vQVDPath)IDS_$(tableName).qvd')) then

LoadTime:

Load Max(LastModifiedDate) as LastModifiedDate // Or max(CreatedDate)

From $(vQVDPath)IDS_$(tableName).qvd (qvd);

Let vLastExecTime = timestamp(peek('LastModifiedDate',0,'LoadTime'),'YYYY-MM-DD hh:mm:ss');

//Let LastModifiedTimestamp = '$(vLastExecTime)';

Drop Table LoadTime;

ELSE

Call FullTableLoad(tableName);

EXIT SUB;

end if;

According to this Code If the QVD is not Available then we are doing a Full Load.

Now what We have Changed is

If the QVD is Available and the No of Records in QVD is zero then again it has to do full load. and also we need to show the LastModifieddate.

i Have changed the code like this but i am getting lastmodifieddate is 0. Why?

if not isnull(QVDCreateTime('$(vQVDPath)IDS_$(tableName).qvd')) or ((exists('$(vQVDPath)IDS_$(tableName).qvd') and QvdNoOfRecords('$(vQVDPath)IDS_$(tableName).qvd')=0)) then

LoadTime:

Load Max(LastModifiedDate) as LastModifiedDate // Or max(CreatedDate)

From $(vQVDPath)IDS_$(tableName).qvd (qvd);

Let vLastExecTime = timestamp(peek('LastModifiedDate',0,'LoadTime'),'YYYY-MM-DD hh:mm:ss');

//Let LastModifiedTimestamp = '$(vLastExecTime)';

Drop Table LoadTime;

ELSE

Call FullTableLoad(tableName);

EXIT SUB;

end if;

Re: How to get lastmodifieddate

Gysbert_Wassenaar — Thu, 19 Jun 2014 11:12:21 GMT

This won't check if a file exists: exists('$(vQVDPath)IDS_$(tableName).qvd')

Use the filesize() function. It will return 0 if the file was not found:

Let vFileSize = FileSize('C:\MyDir\MyFile.qvd');

If $(vFileSize) = 0 then .... // file does not exist or its size really is zero bytes.

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How to get lastmodifieddate

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