I am trying to execute the following query using 'ExecuteSQL' processor in Apache nifi. INSERT INTO SampleDB VALUES (${rno}, '${tno}', '${tval}', '${lotno}', '${datval}') WHERE ${rno} NOT IN (SELECT rno FROM SampleDB); Here the ${rno} is obtained as flow file attribute.' Insert should happen only if rno is unique.   The following error is obtained on execution: ExecuteSQL[id=01781107-63a4-1204-8110-6b19db3d5ffc] Unable to execute SQL select query INSERT INTO LimsOnCloud VALUES (1, 'CTG123 ', 'ITM123 ', '123 ', '5 ') WHERE 1 NOT IN (SELECT rno FROM SampleDB); for StandardFlowFileRecord[uuid=93db20b2-5f9f-4521-ac42-11239abb94c2,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1615281573937-132, container=default, section=132], offset=168254, length=152],offset=0,name=098a8ad2-0dc9-4564-a242-8b4855b619b2,size=152] due to Incorrect syntax near the keyword 'WHERE'.; routing to failure: com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near the keyword 'WHERE'.   Any answers and suggestions would help a lot. ... View more