Transact SQL :: Multiple Columns Needs Median Calculation

Oct 27, 2015

I need to get the median for the 10 columns in my table. For the sake of example, I've reduced it to 2 columns. 

The code below works perfectly if i compute for only 1 column and certainly doesn't for multiple columns.

Is there a way to better handle the median computation in one pass, if multiple columns are involved?

DECLARE @tbl as table (id_n int, col1 int, col2 int)
insert into @tbl
values (1, 1, 2), (1,3, 4), (1, 5, 7), (2, 4, 7), (2, 7, 7), (2, 3, 5), (2,5, 5), (3, 1, 2), (3, 3, 5), (3, NULL,11)
select *
from @tbl
order by id_n, col1

[Code] .....

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Median Calculation Wrong

Mar 4, 2008

I used the Median() function in a calculated measure in a cube. All seemed well until one of my users, a statistician, pointed out that the displayed values were incorrect. I investigated this and finally built the simplest cube with three records and the displayed median does not make sense, i.e. equal what a median value should be.

The 3 records have loan amounts as a measure with these values: $102,500, $168,400, and $172,181 and loan number keys of 1, 2, and 3. That's it.

The median should be $168,400 since the number of items is odd and that is the middle value.

But the cube calculated measure displays $170,290.50. It appears to be taking the average of the middle row and the next value.

When I increase the number of records I get the same odd behavior but it not only alternates (of course) with odd and even (since they use different formulats for odd and even) but the odd wrong results alternate within themselves. The apparent calculations for 5 or 7 records are different compared to 3, 9, 11, 13, 15, 17 records. The first set seems to be calculating odd number of items median by averaging the middle value + the value BEFORE the middle value while the second set of odd rows (3, 9, etc) seem to be calculating median by averaging the middle value + the value AFTER the middel value. The even numbers result in the larger of the two middle values being selected instead of the average (financial median) or the lower number (as one poster claimed for statistical median).

My calculated measure MDX is very simple:

MEDIAN( [Test Fact].[Loan Number].Members, [Measures].[Loan Amount])

Ideas anyone? Am I missing something? Is this a bug?


- Grant

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Analysis :: Median Calculation Using MDX

May 28, 2015

 I have a fact table fct_line_details having two columns mtid, productivity

  mtid     productivity
  1           400
1           200
1          600
2          700
3         900

I want to calculate the median for each mtid in SSAS . (median for mtid 1=400 )

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Transact SQL :: Select And Parse Json Data From 2 Columns Into Multiple Columns In A Table?

Apr 29, 2015

I have a business need to create a report by query data from a MS SQL 2008 database and display the result to the users on a web page. The report initially has 6 columns of data and 2 out of 6 have JSON data so the users request to have those 2 JSON columns parse into 15 additional columns (first JSON column has 8 key/value pairs and the second JSON column has 7 key/value pairs). Here what I have done so far:

I found a table value function (fnSplitJson2) from this link [URL]. Using this function I can parse a column of JSON data into a table. So when I use the function above against the first column (with JSON data) in my query (with CROSS APPLY) I got the right data back the but I got 8 additional rows of each of the row in my table. The reason for this side effect is because the function returned a table of 8 row (8 key/value pairs) for each json string data that it parsed.

1. First question: How do I modify my current query (see below) so that for each row in my table i got back one row with 19 columns.


If updated my query (see below) and call the function twice within the CROSS APPLY clause I got this error: "The multi-part identifier "A.ITEM6" could be be bound.

2. My second question: How to i get around this error?

CROSS APPLY fnSplitJson2(A.ITEM5,NULL) B,  fnSplitJson2(A.ITEM6,NULL) C

I am using Microsoft SQL Server 2008 R2 version. Windows 7 desktop.

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Transact SQL :: Query To Convert Single Row Multiple Columns To Multiple Rows

Apr 21, 2015

I have a table with single row like below

 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Column0 | Column1 | Column2 | Column3 | Column4|
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Value0    | Value1    | Value2    | Value3    |  Value4  |

Am looking for a query to convert above table data to multiple rows having column name and its value in each row as shown below

_ _ _ _ _ _ _ _
Column0 | Value0
 _ _ _ _ _ _ _ _
Column1 | Value1
 _ _ _ _ _ _ _ _
Column2 | Value2
 _ _ _ _ _ _ _ _
Column3 | Value3
 _ _ _ _ _ _ _ _
Column4 | Value4
 _ _ _ _ _ _ _ _

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Simulating Median On Table Columns In SQLserver2000

Apr 22, 2004


I have a an sql table having 10,000 Rows.

The table has 5 columns. They are S1,S2,S3,S4 and M

I need the best way to calculate the MEDIAN for each row and store it in M. i.e. M=median(S1,S2,S3,S4)

I've come across articles where they've calculated medians on table rows, not table columns. But my requirement involves table columns. I guess transposing the columns into rows and then calculating median should be possible, but if I do that for 10000 rows using a cursor, then it would take a loooooong time.

Please suggest the best way to counter this



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SQL Server 2008 :: Calculating Median Over 2 Columns?

Aug 13, 2015

I have a database with 1million+ records in and i'm trying to collect the median values of column(2) for all distinct values in column (1)

Example DB:

Column 1 Column 2
978555 500
978555 502
978555 480
978555 490
978324 1111
978324 1102
978311 122
978311 120
978994 804
978320 359

and I need it to display on SELECT as

column 1 column 2
978555 495
978324 1106
978311 121
978994 804
978320 359

Is this possible on 2008 R2?

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Sep 2, 2015

I'm working on a data analysis involving a table with a large number of records (close to 2 million). I'm using only three of the columns in the table and basically am grouping results based on different criteria. The three columns are PWSID, Installation and AccountType. I have to Provide the PWSID column with a count of the total number of installations per PWSID, also a count of AccountTypes per PWSID. I have the following query, but the numbers aren't adding up and I'm not sure why. I'm falling short in the total count by around 60k records.

[Installation] [numeric](38, 8) NULL,
[AccountType] [nvarchar](50) NULL,
[PWSID] [smallint] NULL,


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Nov 23, 2015

I have a table with the following format

I am looking for a way to get the PRODUCT of all columns and group by M_DOMA, [FROM] - Basically multiply all columns on the row that are not M_DOMA or [FROM].

Is this possible using T-SQL 2012?

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Sep 1, 2015

I have one table like this.

-- drop table #temp
create table #temp(ID bigint, Description varchar(50), ET varchar(200), ET_Status varchar(50), ET_Date datetime, ET_IsValid varchar(3))

insert into #temp
select * from (values (1,'Test','A', 'Ack','08/15/2015', 'Yes'),(1,'Test','B', 'Nack','08/17/2015', 'Yes'),(1,'Test','C', 'Ack','08/21/2015', 'Yes')) a(ID, Description, ET, ET_Status, ET_Date, ET_IsValid)

I want to pivot this. My expected result look like this.

ID - Description - ET_A_Status - ET_A_Date
- ET_A_IsValid -  ET_B_Status - ET_B_Date
  - ET_B_IsValid - ET_C_Status  - ET_C_Date

1  - Test    - 'Ack'       - '2015-08-15 00:00:00.000'  - 'Yes'   -  'Nack'  - '2015-08-17 00:00:00.000'  - 'Yes'  - 'Ack'   - '2015-08-21 00:00:00.000' -  'Yes'

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May 19, 2015

I'm trying to run something like this:

Select ID, FIRST(forename), FIRST(surname) from table1

I know First doesn't work in TSQL, I used to use it in Access and now need to run something like that in TSQL. Simply getting unique ID with first forename and surname, cause there are some dupes in a table.

There are records like:

ID      forename     surname
1    John    Kormack
1   James  Dope
2   Erin    Dupes
3   Will  Hugh
3    Walter Heisenberg

So I want to pull out:

1 John Kormack
2 Erin Dupes
3 Will Hugh

How can I run it in TSQL?

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Jul 14, 2015

I have a table with 100 rows, 1 field (ID), and I would like to write a query to output it as 4 rows, and 25 columns.

Row data

Output will be like
c1  c2   c3    c4    c5....
1    5    9      13
2    6    10    14
3    7    11    15
4    8    12    16

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Jun 4, 2015

I have a requirements to make a single column using a date from multiple columns. below my DDL and sample.

Create table #Mainsample
(ItemNum nvarchar(35), ItemDate datetime, OPType int)
Insert into #Mainsample(ItemNum,ItemDate, OPType) values ('M9000000000020510095','2015-05-01 18:38:48.840',5)
Insert into #Mainsample(ItemNum,ItemDate, OPType) values ('M9000000000020510094','2015-05-02 20:38:40.850',5)
Insert into #Mainsample(ItemNum,ItemDate, OPType) values ('M9000000000020510092','2015-05-02 21:40:42.830',5)
Insert into #Mainsample(ItemNum,ItemDate, OPType) values ('353852061764483','2015-05-02 09:25:10.800',5)


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Transact SQL :: Row Number Over Partition By Multiple Columns

Sep 22, 2015

I have the following query

WITH summary AS
(SELECT tu.SequenceNumber,

[Code] ....

I am having trouble with the RowNumber Over Partition By portion of the query. I would like the query to return only the first occurrence of each sboinumber in the table for each trial id. It is only giving me the first occurrence of each sboinumber. I tried including the trialid in the partition by clause, but that is not working.

Sample Data
SequenceNumber   TrialID      SBOINumber
1                           1            5000
2                           1            5000
3                           2            5000
4                           2            5000
5                           1            5001
6                           3            5001
7                           3            5001

Should return SequenceNumber 1 and 3, 5, 6

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Transact SQL :: Search Functionality With Multiple Columns - Writing SP

Jul 20, 2015

What is the most efficient way to write an SP to tackle all kinds of combinations here (where a user could give any search input).I know this must be fairly common to come across this situation.I have written an SP which will take in all the parameters and based on "IF" statements and using "LIKE" in SQL, this SP returns search results.But I wanted to know if there was more efficient ways of doing this, as you can imagine you might end up having several combinations of IF conditions.

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Transact SQL :: Sorting By Minimum Of Multiple DATETIME Columns

Apr 22, 2015

I have a view in my database detailing the expiry date of each credential for each employee. The view is designed as to display one record per employee and in that record is the expiry date of each credential and the days remaining. So the columns are as follows:-

Employee CodeExpiry Date (x8 columns) (named as credential e.g. [Passport])
Days Remaining (x8 columns) (named as "TS_" + Credential)

I'm trying to use the CASE function to compare each DATETIME column with one another and retrieve the minimum. How can I return the minimum date as a run-time column and sort the view by this column? My code is as follows:-

SELECT [Passport],[TS_Passport],[Visa],[TS_Visa],[Civil_ID],[TS_Civil_ID],[KOC_Pass],[TS_KOC_Pass],[JO_Pass],[TS_JO_Pass],
[Ratqa_Pass],[TS_Ratqa_Pass],[Driving_License],[TS_Driving_License],[Health_Book],[TS_Health_Book], CASE
WHEN Passport <= Visa AND Passport <= Civil_ID AND Passport <= KOC_Pass AND Passport <= JO_Pass AND


I've been told that this is the most efficient given the number of records in my database. The Min_Date is always NULL. I need the minimum of the 8 dates to be the Min_Date.

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Transact SQL :: How To Count Where Two Tables Multiple Columns Match

May 4, 2015

There are two tables

TABLE 1 (NAME - Groupseats)

id session course groupcode sub1 sub2 sub3

1 2015 ba1 137 HL EL Eco
2 2015 ba1 138 EL SL HS
3 2015 ba1 139 SL EL His

From this table i use to admit a student and select their choice of group simultaneously all the subjects associated with GROUP is save on another table.

Here is the TABLE 2 Structure and sample data:

table 2 (NAME - tblstudetail)

id studentID session course sub1 sub2 sub3

1 15120001 2015 ba1 EL SL HS
2 15120002 2015 ba1 HL EL Eco
3 15120003 2015 ba1 SL EL His
4 15120004 2015 ba1 HL EL Eco

AND so no..........................

Now i just want to COUNT the Number of Groups Filled in tblStudateil.

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Oct 12, 2015

I have a Problem with my SQL Statement.I try to insert different Columns from different Tables into one new Table. Unfortunately my Statement doesn't do this.

If object_ID(N'Bezeichnungen') is not NULL
   Drop table Bezeichnungen;
create table Bezeichnungen
 Artikelnummer nvarchar(18),
 Artikelbezeichnung nvarchar(80),
 Artikelgruppe nvarchar(13),

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Sep 22, 2015

In a table I have some rows with flag A & B for a scode, some scode with only A and some are only B flags.

I would like to fetch all rows with flag A when both flags are present, no rows with B should be fetched. Fetch all rows when only single flags are present for a scode.How to achieve this using TSQL code.

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Dec 1, 2015

I have this query:

          (case when type = '1' then sum(value) else '0' end) as Value1,
          (case when type = '3' then sum(value) else '0' end) as Value2,
          (case when type <> '1' and type <> '3' then sum(value) else '0' end) as Value3
FROM table1 WHERE ID1 = 'x' and ID2= 'y' 

Which returns:
ID1     ID2        Type     Value1     Value2     Value3
005    11547    0          0.00         0.00        279.23
005    11547    1          15.23       0.00        0.00
005    11547    3          0.00         245.50    0.00

And I want to obtain this result:
ID1     ID2        Value1     Value2     Value3
005    11547     15.23       245.50    279.23

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Jun 17, 2015

I have a SQL query like this

select CurrencyCode,TransactionCode,TransactionAmount,COUNT(TransactionCode) as [No. Of Trans] from TransactionDetails where CAST(CurrentTime as date)=CAST(GETDATE()as date) group by TransactionCode, CurrencyCode,TransactionAmount order by CurrencyCode

As per this query I got the result like this

CurrencyCode TransactionCode TransactionAmount No.OfTrans
AED     BNT    1     1
AED     BNT     12     1
AED     SCN     1     1
AED     SNT     1     3

[Code] ....

But I wish to grt result as

CurrencyCode TransactionCode TransactionAmount No.OfTrans
AED     BNT   13     2
AED     SCN     1     1
AED     SNT     11     7
AFN     BPC    8     6

[Code] ....

I also tried this

select CurrencyCode,TransactionCode,TransactionAmount,COUNT(TransactionCode) as [No. Of Trans]
from TransactionDetails where CAST(CurrentTime as date)=CAST(GETDATE()as date)
group by TransactionCode order by CurrencyCode

But of course this codes gives an error, but how can I get my desired result??

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Aug 20, 2015

I have a table that contains the job information and i want to calculate the avg at week level. Below are the sample table and data scripts.


SELECT 1,'JOBA','2015-08-18 13:11:09.000', '2015-08-18 13:11:48.000' UNION
SELECT 1,'JOBA','2015-08-16 13:09:19.000', '2015-08-16 13:09:53.000' UNION
SELECT 1,'JOBA','2015-08-15 03:56:46.000', '2015-08-15 03:57:20.000' UNION
SELECT 1,'JOBA','2015-08-14 03:49:39.000', '2015-08-14 03:50:20.000' UNION

[Code] ....

I want the out put as below:

JobId   JobName  Last5DaysAvg   Last10DaysAvg  
1             A                 X                    X
2             B                 X                    X

When i calculate Last5DaysAvg , i want to consider only last 5 days duration for the Avg. Same for 10 days.

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Nov 4, 2015

I want to calculate the Total_Cost and get the result of the formula from SELECT Query. Following is the formula of Total_Cost. I have declared variables for formula. How I can create SELECT/RUN query successfully for mathematical calculation to calculate the Total_Cost.

--Formula of Total_Cost = [min (price, Pay1) x Interest1 + max (min (price - Pay1, Pay2), 0) x Interest2 + Max ((price - Pay2), 0) x Interest3, LMT]

declare @price numeric(18,7)=255550
declare @Pay1 numeric(18,7)=645500
declare @Pay2 numeric(18,7)=235000
declare @Interest1 numeric(18,7)=0.05500
declare @Interest2 numeric(18,7)=0.03533
declare @Interest3 numeric(18,7)=1.00000
declare @LMT numeric(18,7)=10000.00
Select [min (@price, @Pay1) x @Interest1 + max (min (@price - @Pay1, @Pay2), 0) x @Interest2 + Max ((@price - @Pay2), 0) x @Interest3, LMT] as Total_Cost

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Aug 6, 2015

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Declare @goodtries as int, @badtries as int
select @goodtries = convert(decimal(18,4),count(userID))
from table1
WHERE logintype IN ('Valid', 'Success')
select @badtries = convert(decimal(18,4),count(userID))


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Sep 8, 2015

I need to run a select on Mondays to pull data for 7 days prior to the Thursday of last week; i.e. Friday - Thursday inclusive.  I'm sure this is simple, but I work with dates so infrequently that I need a refressher. 

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Apr 2, 2015

This is on SQL Server 2008. Please find a detailed description and the file of the data, that I am working on.


equal to "Omnibus"
the 'Trans Description'is
equal to "Purchase"
one purchase and
one redemption that match on 'System'
'Account TA Number'
'Product Name'
'Settled Date'
the 'Trade Amount'
of the purchase and
redemption is
within 5%,
display those set of records.

deemed wash trades,
allow user to update the purchase and
redemption pair 'Trans Description'
to "Exchange In"
'Trans Description'
"Exchange out"

System Channel Dealer Name Firm Name Product Cusip Product Name Product Share Class Trade ID Settled Date Account TA Number Trans Description  Trade Amount 

SCHWABPORTAL US - ASG MILLIMAN MILLIMAN 64128K777 Strategic Income Fund A 29806259 30-Jan-15 000BY00F2RW Redemption  $      25,68,458.15

[Code] .....

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Jul 12, 2015

I am trying to compare Sales value of year 2015 with sales value of 2016 and the difference stored in alias column as Sales_growth for year 2016 , for year 2015 the alias column be as '1' similarly difference between margin of 2015 and 2016 and result stored in alias column as margin_rate in year 2016for 2015 as 1 but when there is no record for year 2015 and record present in 2016 for a given (month, SM,SG,CUST,SP) then the alias column sales_growth and margin_rate should be 100 

Formula for calculation

SGR = (sales(2015)-sales (2016)) / Sales_growth(2015)
SGR = (3456.05-3603.33) /3456.05 = -0.043
MR =( margin (2015)-margin( 2016) / margin(2015)
MR = (1059.24-1053.07)/1059.24= 0.006


last record : as there is no record  for year 2015 and record present in 2016 for a given (month, SM,SG,CUST,SP) then the alias column sales_growth and margin_rate should be 100

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Oct 5, 2015

In t-sql 2012, I have the following sql that I would like the following to occur:

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2. I would like to have a message appear if the commit was successful or the rollback needed to occur. I basically want a way to be able to tell from messages if a rollback occurred or a commit happened.

DECLARE @TransactionName varchar(20) = 'Transaction1';
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[Code] ....

Thus can you modify the sql I just listed above so that I meet the goals that I just listed above?

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Jul 2, 2015

I am stuck in a situation where I want to use YTD for three different calendars of our company and don't want to create three different YTD calculations. However I want to make this work for any measure not for a particular measure

If I create one YTD and try to use in context of three calendars in SCOPE statements then it does not give my right results. Following is my syntax but It does not work.

SCOPE([Billing Date].[SalesCalendar].MEMBERS);
( [Aggregate].[AGGREGATE CODE].[YTD] )   
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[Code] ....

However if I comment on one of SCOPE statement , other one works but both don't work simultaneously in context of different calendars.

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Aug 27, 2014

I'd like to first figure out the count of how many rows are not the Current Edition have the following:

Second I'd like to be able to select the primary key of all the rows involved

Third I'd like to select all the primary keys of just the rows not in the current edition

Not really sure how to describe this without making a dataset

CREATE TABLE [Project].[TestTable1](
[TestTable1_pk] [int] IDENTITY(1,1) NOT NULL,
[Source_ID] [int] NOT NULL,
[Edition_fk] [int] NOT NULL,
[Key1_fk] [int] NOT NULL,
[Key2_fk] [int] NOT NULL,

[Code] .....

Group by fails me because I only want the groups where the Edition_fk don't match...

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Sep 17, 2015

I have created calcalated measures in a SQL Server 2012 SSAS multi dimensional model by creating empty measures in the cube and use scope statements to fill the calculation.

(so I can use measure security on calculations

as explained here  )

SCOPE [Measures].[C];

THIS = IIF([B]=0,0,[Measures].[A]/[Measures].[B]);

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Hi I am having to convert some oracle reports to Reporting Services. Where I am having difficulty is with the



TO_DATE(TO_CHAR(Visit Date+Visit Time/24/60/60,'DD-Mon-YYYY HH24:MISS'),'DD-Mon-YYYY HH24:MISS')

this is a sfar as I have got with the sql version


= DateAdd("s",Fields!VISIT_DATE.Value,Fields!VISIT_TIME.Value246060 )

visit_date is date datatype visit_time is number datatype. have removed : from MI(here)SS as was showing as smiley.


VS 2005 BI Tools

SQLServer 2005

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Here is my requirement, How to handle using SSIS.

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I have SP which accept 3 parameters ID, Key, Date

NOTE: Key is the coulm name from the Excel. So my sp call look like

sp_insert ID, Key1, date
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