我想获取对 Oracle DB 中设置的表的特定列(比如说 ID)的行引用数,我的代码是
String selectTableRowsSQL4 = "SELECT row "
+ "FROM contract_type_info"
+ "WHERE ID = ?";
preparedStatementSelect = dbConnection.prepareStatement(selectTableRowsSQL4);
preparedStatementSelect.setInt(1, 5);
preparedStatementSelect.getResultSet().getRow();
System.out.println("Row: " + preparedStatementSelect.getResultSet().getRow());
当我运行上面的代码时,我的结果为零 (0)!
事实上,我试图找出 ID=5 在哪一行?