Question

我对MS SQL查询完全不熟悉，我所拥有的是三个表，如下所示：

将列（userGroupLocID）设置为varchar数据类型的Users表，此字段包含以逗号分隔的值，例如（1,2）

具有列（user_loc_id）的Room_Location表设置了数据类型INT

Client_Room表，其列（id）设置为数据类型INT

我有以下查询，$query = "SELECT * FROM client_room, room_location, users WHERE $useractiveid = (users.id) AND client_room.id = (room_location.user_loc_id)";

这会从Room_Location表输出一个完整的位置列表，这是正常的，但我只希望在用户表中存在id的位置显示（userGroupLocID）$query = "SELECT * FROM client_room, room_location, users WHERE $useractiveid = (users.id) AND client_room.id = (room_location.user_loc_id) AND cast(client_room.id as varchar(10)) IN (users.userGroupLocID)";

有人可以告诉我，我的错误在哪里。

Answer 1

我最终设法解决了我自己的问题，它可能不是最好的答案，但这是它在MS SQl上工作的唯一方式。

<select name="event_room" id="event_room">
                        <option>Room Location</option>
                        <?php 

                            $query = "SELECT * FROM users WHERE theusername = '$userident'";

                            $result = odbc_exec($connect, $query);

                            while($row = odbc_fetch_array($result)){

                                $usegrids = explode(',', $userperenco);
                                foreach ($usegrids as $usegrid) {
                                    $querygroup = "SELECT * FROM room_location WHERE user_loc_id = '$usegrid'";
                                    $resultgroup = odbc_exec($connect, $querygroup);
                                    while($rowgroup = odbc_fetch_array($resultgroup)){
                                        echo "<option value=\"" . $rowgroup['location'] . "\">" . $rowgroup['location'] . "</option>\n";
                                    }
                                }
                            }
                        ?>
                    </select>

MS SQL php查询逗号分隔列？

1 个答案: