Remove duplicate values
i am trying to insert values into database from excel spreadsheet .am doing it using JDBC.connected both excel and sql database. i have these columns dc:Title,dc:dcid,dc:subject,dc:description,dc:publisher,dc:language in SQL database. in which dc:title will not allow null and dc:dcid is primary key. other attributes can allow null. am trying to insert values from spreadsheet having 4 rows.
statement2.executeUpdate("insert into dbo.Text([dc:Title],[dc:Description],[dc:Publisher],"
+ "[dc:language],[dc:subject],[CreatedBy])"
+ " values('"+Cname[i]+"','"+textdescription[i]+"','"+publisher[i]+"','"
+language[i]+"','"+Subject[i]+"','"+Createdby[i]+"')");
after each running of the program the above query inserts those 4 rows repeatedly. i want to have unique values means values shouldn't be repeat in the database.
q1. how can i eliminate duplicate values during insertion? please i need code snippet.
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