SQL语句求有两个以,分隔的字符串的交集

下面是文章表，如自己设置的标签id为3，11  ，则匹配出含有3或11的文章列表。 

附上代码：

//表示查询到当前用户所设置的标签
List> list = new ArrayList<>();

StringBuilder articleSql = new StringBuilder();
articleSql.append(" select top 2 a.source,"
        		+ "a.article_id,"
        		+ "a.article_title,"
        		+ "a.publish_date,"
                + "a.clicknum,"
		        + "case when Datename(year,GetDate())+'-'+Datename(month,GetDate())+'-'+Datename(day,GetDate())= a.publish_date then '0'  else '1' END  as istoday ");
        articleSql.append(" from t_reptile_article a ");
        articleSql.append(" where 1=1  "); 

 Map articleparams = new HashMap();
 if (list.size() > 0) {
       articleSql.append(" and (");
       for (int i=0; i tagMap = list.get(i);
           String tagId = tagMap.get("tag_id").toString();
           articleSql.append(" a.labels like '");
           articleSql.append(tagId);
           articleSql.append(",%' ");
           articleSql.append(" or ");
            	
           articleSql.append(" a.labels like '%,");
           articleSql.append(tagId);
           articleSql.append("' ");
           articleSql.append(" or ");
            	
           articleSql.append(" a.labels like '%,");
           articleSql.append(tagId);
           articleSql.append(",%' ");
           articleSql.append(" or ");
            	
           articleSql.append(" a.labels like '");
           articleSql.append(tagId);
           articleSql.append("' ");
           if (i