按列sQL

Question

如果有多个employeeId，我想删除min Id。我如何在sQL查询中执行此操作？收录我的SQL查询结果

delete @CompPayDetEE where exists (select 1 from @CompPayDetEE group by AppEmployeeId )

Answer 1

这应该有效。我保留所有max ID并删除剩余的行：

DELETE FROM Yourtable
  WHERE id NOT IN 
        (
          SELECT MAX(id)
            FROM Yourtable
           GROUP BY AppEmployeeID
         );

Answer 2

<div class="modal fade" id="receipt<?php echo $value['tenant_id'];?>" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
    <div class="modal-content">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
        </div>
        <div class="modal-body">
            <form  action="save_receipt.php" method="POST">
                <input type = "hidden" class="form-control" name= "id" value = "<?php echo $value['tenant_id'];?>">
                <div class="form-group">    
                    <strong>
                        <div class= "modal-body2"><h3 class="modal-title text-center" id="myModalLabel">
                            <strong>Republic of the Philippines<br>Province of Negros Occidental
                            </strong></h3>
                            <h4 class ="text-center"><em>City of Victorias</em></h4>
                            <h4 class="text-center">
                                <strong>OFFICE OF THE MARKET SUPERVISOR
                                </strong>
                            </h4>

                            <br>                            
                            <div class="form-group">    
                                <label class="col-sm-2 control-label">Name </label>: <?php echo $value['tenant_fname']." ".$value['tenant_mname']." ".$value['tenant_lname'];?>
                            </div>
                            <div class="form-group">
                                <label class="col-sm-2 control-label">Location </label>: Stall No. <?php echo $value['stall_number']." (".$value['stall_floor'];?>)
                            </div>
                            <div class="form-group">
                                <label class="col-sm-2 control-label">SUBJECT </label> :
                                FOR PAYMENT OF ELECTRICAL CONSUMPTION FOR &nbsp;&nbsp;&nbsp;THE PERIOD FROM
                                <input class = "datepick custom-input1"></input>
                                ,TO 
                                <input class = "datepick custom-input1"></input>
                            </div>
                            <div class="form-group">
                                <label class="col-sm-4 control-label">METER NO. </label>: <input type="text" name=""  class = "custom-input"></input> 
                            </div>
                            <div class="form-group">
                                <label class="col-sm-4 control-label">ELECTRIC RATE </label>:<input class = "custom-input3"  value="<?php echo $value['elec_rate']?> per kWh" id= "rate" readonly ></input> 
                            </div>
                            <div class="form-group">
                                <label class="col-sm-4 control-label">PRESENT </label>: <input class = "custom-input" name="charges"></input> 
                            </div>
                            <div class="form-group">
                                <label class="col-sm-4 control-label">PREVIOUS </label>: <input  class = "custom-input" value ="<?php echo $value['charges']?> kWh" id = "previous" readonly> </input> 
                            </div>
                            <div class="form-group">
                                <label class="col-sm-4 control-label">TOTAL CONSUMPTION</label>:
                                <input type="text"  class = "custom-input" type="" id="result1" readonly>
                            </div>
                            <div class="form-group">
                                <label class="col-sm-4 control-label">AMOUNT </label>: 
                                <input type="text"  class = "custom-input3" type="" id="result" value="" readonly>
                            </div><br>                              
                            <div class="form-group">
                                <p class="text-right">APPROVED BY: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                                    <br>
                                    <br>
                                    LUDAISY B. FERNANDEZ&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>
                                    MARKET SUPERVISOR III&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                                </p>
                            </div>

                        </div>
                    </strong>
                </div>
            </div>  
            <div class="modal-footer">
                <button type="button" class="btn btn-default close-modal" data-dismiss="modal">Close
                </button>
                <!-- <button type="submit" name="add" class="btn btn-primary">Save</button> -->
                <button onclick="myFunction()" class="btn btn-primary">Print Receipt</button>
            </div>
        </form>
    </div>
</div>

Answer 3

delete @CompPayDetEE
where Id in(    select IdToDelete = min(Id)
                from @CompPayDetEE
                group by AppEmployeeId
                having count(*)>1)