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Do all subqueries in CASE..WHEN get executed, even if only one condition is met?


Do all subqueries in CASE..WHEN get executed, even if only one condition is met?

By : vorsfellung
Date : September 23 2020, 05:00 PM
wish helps you I find that this is an interesting question.
Explain plans cannot really tell you the answer, since they are static, while condition evaluation occurs at runtime.
code :
select case 
    when (select 1) = 1 then 'should stop here'
    when (select 1 union all select 2) = 1 then 'should not get there, or it will die'
end t
| t                |
| ---------------- |
| should stop here |


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JQuery function return statement gets executed first then only the condition inside gets executed

JQuery function return statement gets executed first then only the condition inside gets executed


By : john smith
Date : March 29 2020, 07:55 AM
like below fixes the issue This happens because getJSON is asynchronous function. You may use $.ajax with async: false instead of getJSON, like:
code :
$.ajax({
  dataType: "json",
  url: loadUrl,
  async: false,
  success: function(response) { ... }
});
var str ='';
function myFormatter(cellvalue, options, rowObject, callback) {
if(rowObject.name== 'test'){
        $.getJSON(loadUrl, function(jsnResponse) {
            if(typeof(callback) === 'function'){
                callback(jsnResponse.address);
            }
        }); 
    } else {
        str = 'No value'; 
    }
    return str;
}
myFormatter('...', '...', rowObject, function(str) {
    // Here you will receive the value asynchronously.
});
Case When Condition in Where Clause. Use filter condition if it matches the case when condition only

Case When Condition in Where Clause. Use filter condition if it matches the case when condition only


By : Kumar Atul
Date : March 29 2020, 07:55 AM
Hope that helps Is it possible to use case when condition in where clause to filter select statement. For Eg: , You don't need case at all:
code :
Select * from table_name 
where source ='UHC'
and ((policy_number = '1' and to_char(termdate,'YYYYMM') <= '201603') 
     or nvl(policy_number, '0') != '1');
where source ='UHC' and case when policy_number = '1' then to_char(termdate,'YYYYMM') else '000000' end <= '201603');
No test case executed when batch file is executed via jenkins even after a successfull build

No test case executed when batch file is executed via jenkins even after a successfull build


By : Dave Malaguti
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Followed the steps provided by @juherr and I have updated the TestNG version from 6.8 to 6.11. Now i am able to executed test cases via jenkins.
case statement is true but the code under the true case condition is not executed

case statement is true but the code under the true case condition is not executed


By : Debon MadridistaDasi
Date : March 29 2020, 07:55 AM
this one helps. I have an app where there are combo boxes. In these combo boxes I want units to populated automatically. I have built a code where there is select..case condition. The case statement is true but the code following the true case statement is not executed. I have analyzed it through breakpoints, and it also shows it True but it is not executed and jumps to the end. Please advise. , This code fails.
code :
 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles 
 Button1.Click

    Dim s As String = "abcdefghijklmnopqrstuvwxyz"

    Select Case s
        Case s.Contains("g")
            MsgBox("Case Select Fails")
    End Select

    If s.Contains("g") Then
        MsgBox("If statement works")
    End If

End Sub
 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles 
  Button1.Click

    Dim s As String = "abcdefghijklmnopqrstuvwxyz"

    Select Case True
        Case s.Contains("g")
            MsgBox("Case Select Works")
    End Select

    If s.Contains("g") Then
        MsgBox("If statement works")
    End If
End Sub
MYSQL-Got different result when use sum(case when condition 1) and count(case when condition 1)

MYSQL-Got different result when use sum(case when condition 1) and count(case when condition 1)


By : JoneWu
Date : March 29 2020, 07:55 AM
may help you . count() counts all non-null values, no matter what they are. So 0 is counted as well.
This would work with count()
code :
COUNT(CASE WHEN g.branchid=30  
           THEN 1
           ELSE NULL
       END)
COUNT(CASE WHEN g.branchid=30  
           THEN 1
       END)
SUM(g.branchid=30)
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