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Tableau how to get more then 16 columns

I tried following approach and it worked.
rename .twb file to .xml
(if your tableau file is twbx then rename this file to .zip . get .twb file from this zip file. )
Open in notepad

search for following text:

change ’16’ to your desired value.
Now rename the .xml back to .twb. Open in tableau.

Though you could add more columns in tableau by changing xml, UI doesn’t look good. As tableau doesn’t support scroll bar on “Rows”

source:
https://community.tableau.com/thread/238456

Tableau tabcmd *** Uncaught exception RuntimeException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.securi ty.provider.certpath.SunCertPathBuilderException: unable to find valid certifica tion path to requested target

Tableau tabcmd error
tabcmd login -s https://tableauserver.com -t site1 -u username –p password

*** Uncaught exception RuntimeException: javax.net.ssl.SSLHandshakeException:
sun.security.validator.ValidatorException: PKIX path building failed: sun.securi
ty.provider.certpath.SunCertPathBuilderException: unable to find valid certifica
tion path to requested target

When you get this error there are 2 ways of solving:
Solution1: Add tableau weburl to your trusted url’s in IE.
Solution2:
add –no-certcheck
tabcmd login -s https://tableauserver.com -t site1 -u username –p password –no-certcheck
and append –no-certcheck to export commands as well.

Cognos Percentage calculation by total

percentage([Counts])
percentage(count (distinct [DataItem]))

Create a calculation by above syntax. Drag that column to cross-tab. You should be getting percentages of summary data.

Topics: Cognos Cross Tab & percent calculation in Total
cognos cross tab how to add percentage

https://it.toolbox.com/question/crosstab-percent-calculation-in-total-071706

cognos scheduled reports are stuck in wait state

in progress…

cognos notification test pass but email doesn’t come

Unable to send emails from Cognos Server but no errors appear in the cogserver.log file
https://www-01.ibm.com/support/docview.wss?uid=swg21339824

https://www.cognoise.com/index.php?topic=26364.0

https://it.toolbox.com/question/cnc-sds-0408-there-are-email-messages-waiting-to-be-sent-072011

CNC-SDS-0408 There are email messages waiting to be sent.

CNC-SDS-0410 The email message was not sent
https://www-01.ibm.com/support/docview.wss?uid=swg22012214

cognos analytics [Validate mail server properties.] [ ERROR ] The mail server cannot be reached.

Cognos Scheduled Jobs Randomly Stuck in ‘Waiting’ State
https://www-01.ibm.com/support/docview.wss?uid=swg21689979

Testing mail server connection: [ERROR] Mail server authentication failed
https://www-01.ibm.com/support/docview.wss?uid=swg21342280