问使用SQL子查询计算表中的行数，并根据结果通过/不通过java测试

EN

addressId | addressName |
2         | testAddress |

linkId | clientId | addressId |
1      | 4        | 2         |

SELECT COUNT(*) FROM Taddress
WHERE addressId =
(SELECT addressId FROM Tlink
WHERE clientId = param)

try {
        dbAccessSetUp();
        ResultSet rs = stmt.executeQuery("SELECT COUNT(*) FROM taddress a INNER JOIN tlink l on a.address_id = l.internal_address_id WHERE l.ext_client_id =" + this.clientNo);

        if(!rs.next()) {
            fail("Record does not exist in taddress based on ExtClientNo");
        }

        int count = 0;

        while(rs.next()) {              

            count = rs.getInt(1);
            System.out.println("number of count : " + count);
            assertTrue(0 < count);
        } 
        rs.close(); 
    } catch(SQLException se) { 
        se.printStackTrace(); 
        assertEquals(true, false);
    } catch(Exception e) { 
        e.printStackTrace();
        assertEquals(true, false);
    } finally { 
        try { 
            if(stmt!=null) stmt.close();  
        } catch(SQLException se2) {
            assertEquals(true, false);
        } 
        try { 
            if(conn!=null) conn.close(); 
        } catch(SQLException se) {
            se.printStackTrace(); 
            assertEquals(true, false);
        } 
    }