JDBC QUERY error

Dear Experts,

We are having RFC to JDBC syn interface in that we are using query to get the data from Oracle databse.

This is the query  " :SELECT Row_index,Plant,PostingDate,DocumentDate,MovementType,MaterialNum,Quantity,UOM,CostCenter,MaterialDocNumber,MaterialDocYear,Status,Message,UserName FROM HIR_Reports1.dbo.HIE_POST_SAP_TRANS where MaterialDocNumber is NULL and postingdate='2015-09-07 00:00:00.000'"

This query we are using in SAP PI mapping.

Problem is if we give any date in ECC to get the data but PI sending only one date which we are using in Query.

Can you please help me to resolve this.

cheers