SELECT u_bednet_varmx.varid AS varid ,varkind ,varcode ,varname ,varclass ,vartype ,varunit ,u_bednet_varmx.varvalue AS varvalue ,dscrp ,createtime ,createby FROM u_bednet_var INNER JOIN u_bednet_varmx ON u_bednet_varmx.varid = u_bednet_var.varid WHERE ( varkind = @varkind OR @varkind = - 1 ) AND (u_bednet_varmx.pricelistid = @pricelistid) AND ( ( u_bednet_var.varclass = 1 AND ( u_bednet_varmx.bednettypeid = @bednettypeid OR @bednettypeid = 0 ) ) OR (u_bednet_var.varclass = 0) )