How to pass null value to mysql stored procedure using java -


below stored procedure

drop procedure `addrecord`// create definer=`root`@`localhost` procedure `addrecord`(company varchar(3000),name                  varchar(3000),title varchar(3000),metro varchar(3000),city varchar(3000),email   varchar(3000),phone varchar(3000),industry varchar(3000))  begin      insert ignore record_data (company,name,title,metro,city,email,phone,industry)                     values(company,name,title,metro,city,email,phone,industry); end

my main task check duplicate entries. works fine if provide values fields. if provide field null java inserts new row.rather eliminating duplicate. for e.g.

   if use following statement dosent insert entry if exists     record.addrecord("abc", "a", "abc", "a","b","ostwal@gmail.com", "518- 220", "intl");     if use     record.addrecord("abc", "a", "abc", null,null,"ostwal@gmail.com", "518- 220", null);    inserts row if exists.


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