A new row is inserting whenever write to data store is happening.

Question

Hi, 
 After every user input task completed i have called write to data store entity to insert data to table so over all in main process i have called three times so after every user input task a new row creating the values is not getting updated but after every user interaction a new row is getting inserted. i have updated the details correctly like below in input and also in output tab i stored the ac values to cdt. kindly suggest me on this and autoincrement i have given to Id column in cdt 
 
 Query:

ArunVelaayudhanGanesan · Answer

if you want to update a existing row, you have to send the Primary Key value in your inputs.. 
 If you dont send this, appian inserts a new record.

Mike Schmitt · Answer

dharanik2600 said: also in output tab i stored the ac values to cdt 
 Can you confirm from your running process instance that the stored PV value contains the Primary Key ID autogenerated in the new inserted row? Also can you verify that you have the primary key ID column set to AUTO_GENERATE in the DB (or, alternatively, that you're populating one manually)?