how to read only First and Last lines of the File

[Anonymous]

I want to read only First and Last lines from the file. is it possible? do we have any component

[Anonymous]

Hi
It is easy to read only first lines from a file, just need to set the header.
To read the last lines, you need use a tFileRowCount to get the number of lines first and then use a tSampleRow to read a range of lines, for more details, please see my screenshots.
Best regards
Shong

[Anonymous]

Thanks Shong.

[Anonymous]

it seems like tFileRowCount component is having a bug in it.
if I select the option "IgnoreEmpty rows" with row separator as "\n" , it still counts the rows but with

System.getProperty("line.separator").toString()

in the row separator is ignoring the empty rows.
this is not the case in tFilePositional or any other file reading components.

[Anonymous]

it seems like tFileRowCount component is having a bug in it.
if I select the option "IgnoreEmpty rows" with row separator as "\n" , it still counts the rows but with

System.getProperty("line.separator").toString()

in the row separator is ignoring the empty rows.
this is not the case in tFilePositional or any other file reading components.

Hi
Which version are you using? I tested it on v4.1.2 and it works.
Best regards
Shong

[Anonymous]

I have this problem on TDQ 4.0.1 R41260

[sreemanthri]

i'm not finding the screenshot for the post can you please share it