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Editorial Team
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Asked: 2026-06-18T20:33:23+00:00

String Query=select * from recommendation.sports WHERE feed LIKE’%+s1+%’ UNION select * from recommendation.software WHERE

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String Query="select * from recommendation.sports WHERE feed LIKE'%"+s1+"%'

    UNION "select * from recommendation.software  WHERE feed LIKE '%"+s1+"%'

    UNION "select * from recommendation.website   WHERE feed LIKE '%"+s1+"%'

    UNION "select * from recommendation.others    WHERE feed LIKE '%"+s1+"%'

    UNION "select * from recommendation.business  WHERE feed LIKE '%"+s1+"%'";
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1 Answer

  1. Editorial Team

    maybe you mean this?

    String Query = "select * from recommendation.sports WHERE feed LIKE '%" + s1 + "%' " +
                "UNION " +
                "select * from recommendation.software  WHERE feed LIKE '%" +s1+ "%' " +
                "UNION " +
                "select * from recommendation.website   WHERE feed LIKE '%" +s1+" %' " +
                "UNION " +
                "select * from recommendation.others    WHERE feed LIKE '%"+s1+"%' " +
                "UNION " +
                "select * from recommendation.business  WHERE feed LIKE '%" +s1+ "%'" ;

    but I advise you to use PreparedStatements on the query to avoid SQL Injection.

    String Query = "select * from recommendation.sports WHERE feed LIKE CONCAT('%', ?, '%') " +
                "UNION " +
                "select * from recommendation.software  WHERE feed LIKE CONCAT('%', ?, '%') " +
                "UNION " +
                "select * from recommendation.website   WHERE feed LIKE CONCAT('%', ?, '%') " +
                "UNION " +
                "select * from recommendation.others    WHERE feed LIKE CONCAT('%', ?, '%')  " +
                "UNION " +
                "select * from recommendation.business  WHERE feed LIKE CONCAT('%', ?, '%')" ;

PreparedStatement pstmt = con.prepareStatement(Query);
pstmt.setString(1, s1);
pstmt.setString(2, s1);
pstmt.setString(3, s1);
pstmt.setString(4, s1);
pstmt.setString(5, s1);
ResultSet _result = pstmt.executeQuery();
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