As i understood right , sushshah talked about using MSSQL as TAC Admin DB.
We have figured out, that in Version 5.3.1 no driver is encluded for MSSQL DB.
Therefore we have opened a Ticket at Talend Support and they have told us that solution i mentioned.
We dont use H2 DB for TAC, we are sucessfully using MSSQL DB.
Hope i could help.
Best regards,
Marco