Sql query in ASP.NET -

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i using following query update record in asp.net, what's wrong it?

dim updatesqlstring string = "update subscriber_communication set([[marketing_rec_id]=?, [currently_own]=?,[purchase_date]=?, [interested_in_owning]=?, [product_of_interest]=?," & _ "[time_frame_to_own]=?, [referred_by]=?, [campaign_code]=?,[last_update]=?, [record_created_on]=?, [comments]=?, [comment_date]=?, [community_id]=?," & _ "[certification]=?, [subscriber_type]=?, [unsubscribe_comment]=?" & _ "where [communication_id]=" & communication_id   using conn new sqlconnection(connstring)             using cmd new sqlcommand(insertsqlstring, conn)                 cmd.commandtype = commandtype.text                 cmd.parameters.addwithvalue("marketing_rec_id", marketing_rec_id)                 cmd.parameters.addwithvalue("currently_own", currently_own)                 cmd.parameters.addwithvalue("purchase_date", purchase_date)                 cmd.parameters.addwithvalue("interested_in_owning", interested_in_owning)                 cmd.parameters.addwithvalue("product_of_interest", product_of_interest)                 cmd.parameters.addwithvalue("time_frame_to_own", time_frame_to_own)                 cmd.parameters.addwithvalue("referred_by", referred_by)                 cmd.parameters.addwithvalue("campaign_code", campaign_code)                 cmd.parameters.addwithvalue("last_update", last_update)                 cmd.parameters.addwithvalue("record_created_on", record_created_on)                 cmd.parameters.addwithvalue("comments", comments)                 cmd.parameters.addwithvalue("comment_date", comment_date)                 cmd.parameters.addwithvalue("community_id", community_id)                 cmd.parameters.addwithvalue("certification", certification)                 cmd.parameters.addwithvalue("subscriber_type", subscriber_type)                 cmd.parameters.addwithvalue("unsubscribe_comment", unsubscribe_comment)                 conn.open()                 cmd.executenonquery()             end using         end using

i believe want:

dim updatesqlstring string =      "update subscriber_communication set [marketing_rec_id]=@marketing_rec_id, [currently_own]=@currently_own,   ..." etc

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