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Select Multiple Values SQL


Select Multiple Values SQL

By : user2954085
Date : November 21 2020, 07:31 AM
wish of those help I have a table where the data are as follow , You can use group by and having:
code :
select classroom
from table t
group by classroom
having count(*) = 2 and
       sum(person in ('maria', 'Alfred')) = 2;
having count(distinct name) = 2 and
       count(distinct case when person in ('maria', 'Alfred') then person end) = 2;


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How to select multiple values without ctrl key when select values are loaded dynamically as a function of another select

How to select multiple values without ctrl key when select values are loaded dynamically as a function of another select


By : madmir
Date : March 29 2020, 07:55 AM
this one helps. I think the main problem is that the values are dynamically updated, at the time your code runs select probably is empty. You can shorten the script a lot more by merging the functions in one.
code :
$(function(){ // this is short for $(document).ready()
     function applyMultiSelection (){
         $("#models").MultiSelect({
             css_class_selected: "multi-selection"
         });
     };
});
$(function(){ 
   $("#models option").livequery(function () {
       $("#models").MultiSelect({
             css_class_selected: "multi-selection"
       });
   });
});
SELECT @local_variable=values from table where values can have multiple values

SELECT @local_variable=values from table where values can have multiple values


By : Tarun Upadhyay
Date : March 29 2020, 07:55 AM
I wish this helpful for you The variable can't actually hold multiple values. You can declare a table variable instead, where you can then do something like
code :
declare @tableVariable table
(
  Adtid int
);

insert into @tableVariable
select Adtid from table where Adtid ...
HTML multiple select dropdown not returning multiple values in php,returnong only the last value instead of multiple

HTML multiple select dropdown not returning multiple values in php,returnong only the last value instead of multiple


By : Mariusz Koniec
Date : March 29 2020, 07:55 AM
This might help you I have a multiple select dropdown field in html which has to return multiple values but it is returning only single value. , Your code looks ok. Write select tag as below:-
code :
<select name="select[]" multiple="multiple">
    if(isset($_POST['select'])){
        $selected = $_POST['select']; 
        // Here $selected is an array. So need a foreach loop            
        foreach ($selected as $option)
        {
             print "You are selected $option<br/>";
             //print mysqli_real_escape_string($link, $option);
        }
    }
Linq : Select multiple values and assign to select with specific option/value

Linq : Select multiple values and assign to select with specific option/value


By : mohsen
Date : March 29 2020, 07:55 AM
I hope this helps you . You just need to correct a little so that the code will look like this:
code :
var employeesList = dbdev.employeeDetails.OrderBy(x => x.employeeID)
                         .AsEnumerable()
                         .Select(x => new {
                              Name = String.Format("{0} {1} {2}", x.employeeNumber, x.knownas, x.surname), 
                              Value = x.employeeID
                         }).ToList();
var employeesList = (from x in dbdev.employeeDetails.AsEnumerable()
                     orderby x.employeeID ascending
                     select new {
                         Name = String.Format("{0} {1} {2}", x.employeeNumber, x.knownas, x.surname), 
                         Value = x.employeeID
                     }).ToList();
SelectList employeeIDList = new SelectList(employeesList, "Value", "Name", userAccess.employeeID);
var employeesList = dbdev.employeeDetails.OrderBy(x => x.employeeID)
                         .AsEnumerable()
                         .Select(x => new SelectListItem {
                              Text = String.Format("{0} {1} {2}", x.employeeNumber, x.knownas, x.surname), 
                              Value = x.employeeID
                         }).ToList();
How can I select multiple values from a select dropdown and rank them based on the order they were selected in?

How can I select multiple values from a select dropdown and rank them based on the order they were selected in?


By : user3186810
Date : March 29 2020, 07:55 AM
will help you I am trying to make a multiple select dropdown which lets you pick multiple values(two in my case) and ranks them based on the order you selected them in.
code :
  $(document).ready(function () {
    var first = '';
    var second = '';
    var flag = 0;     

    $('button').click(function () {
        var x = $('select').val();
        first = x[x.length - 2];
        second = x[x.length - 1];
       alert('first:' + first +'----Second:' + second);      

    });
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<html><head>       
</head><body>
<select name="test" multiple>
    <option>123</option>
    <option>456</option>
    <option>789</option>
     <option>110</option>
    <option>220</option>    
</select>
<button>Show</button>
</body></html>
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