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Autofill missing row in database based on missing time range


Autofill missing row in database based on missing time range

By : user3042412
Date : November 28 2020, 12:01 PM
Hope that helps You can use generate_series() and some math. The following assumes that total is increasing (as in your sample data):
code :
select d.dt, seqnum,
       coalesce(t.total,
                (max(t.total) over (order by d.dt asc) +
                 (min(t.total) over (order by d.dt desc) - 
                  max(t.total) over (order by d.dt asc)
                 ) *
                 (seqnum - max(seqnum) filter (where t.total is not null) over (order by d.dt asc)) /
                  nullif(min(seqnum) filter (where t.total is not null) over (order by d.dt desc) -
                         max(seqnum) filter (where t.total is not null) over (order by d.dt asc),
                         0
                        )
                 )
                )
from (select dt, count(*) over (order by dt) as seqnum
      from (select generate_series(min(dt), max(dt), interval '15 minute') as dt
            from t
            ) d
     ) d left join
     t
     on t.dt = d.dt;
prev_value + (next_value - previous_value) * ratio
(current_time - prev_time) / (next_time - prev_time)


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missing time range in a day

missing time range in a day


By : Toddman
Date : March 29 2020, 07:55 AM
I hope this helps . Your sample data (note, Ts added to strings to enforce unambiguous date conversions):
code :
create table time_sheet
(
      StatusCode char(1),
      start_time datetime,
      end_time datetime
)

insert into time_sheet values
('W','2012-08-01T10:00:00','2012-08-01T12:00:00'),
('D','2012-08-01T12:00:00','2012-08-01T14:00:00'),
('N','2012-08-01T16:00:00','2012-08-01T18:00:00')

declare @begingOfDay datetime='2012-08-01T08:00:00.000'
declare @endOfDay    datetime='2012-08-01T20:00:00.000'
;with AllDTs as (
    select @begingOfDay as TimePoint
    union
    select @endOfDay
    union
    select start_time from time_sheet
    union
    select end_time from time_sheet
), OrderedDTs as (
    select TimePoint,ROW_NUMBER() OVER (ORDER BY TimePoint) as rn
    from AllDTs
), Periods as (
    select o1.TimePoint as start_time,o2.TimePoint as end_time
    from
        OrderedDTs o1
            inner join
        OrderedDTs o2
            on
                o1.rn = o2.rn-1
)
select
    COALESCE(ts.StatusCode,'B') as StatusCode,
    p.start_time,
    p.end_time
from
    Periods p
        left join
    time_sheet ts
        on
            p.start_time = ts.start_time and
            p.end_time = ts.end_time
StatusCode start_time              end_time
---------- ----------------------- -----------------------
B          2012-08-01 08:00:00.000 2012-08-01 10:00:00.000
W          2012-08-01 10:00:00.000 2012-08-01 12:00:00.000
D          2012-08-01 12:00:00.000 2012-08-01 14:00:00.000
B          2012-08-01 14:00:00.000 2012-08-01 16:00:00.000
N          2012-08-01 16:00:00.000 2012-08-01 18:00:00.000
B          2012-08-01 18:00:00.000 2012-08-01 20:00:00.000
Fill Missing Values for a certain range with only Non-Missing Observation

Fill Missing Values for a certain range with only Non-Missing Observation


By : danp
Date : March 29 2020, 07:55 AM
With these it helps Hi I wonder how to put this in to SAS code: , I have set up the input data as:
code :
data have;
  input balance month outstanding;
  datalines;
1000     0      .
200      1      .   
300      2      .
400      3      .
500      4      .
800      5      .
750      6      .
650      7      .
740      8      .
580      9      .
650      10     .
523      11     7093
654      12     .
458      0      .
789      1      .
852      2      .
236      3      .
1258     4      .
4528     5      .
78520    6      .
1258     7      .
4821     8      .
15870    9      .
1587     10     .
1599     11     111776
6520     12     .  
;
data want;
  set have(where=(outstanding ne .));

  do until (month=12);
    set have(drop=outstanding);
    output;
  end;
run;
How to find missing time value(s) in a given range in MySQL database?

How to find missing time value(s) in a given range in MySQL database?


By : Pulkit Suhasaria
Date : March 29 2020, 07:55 AM
will help you Generate a table (TABLE2) which have time of a full day (if u really need at any date), and write your query like this
SELECT TABLE2.mtime FROM TABLE2 LEFT JOIN TABLE1 ON TABLE1.mtime = TABLE2.mtime WHERE TABLE1.mtime IS NULL
AutoFill method of range class failed, what am I missing?

AutoFill method of range class failed, what am I missing?


By : user3068981
Date : December 24 2020, 10:30 PM
like below fixes the issue I'm trying to auto fill a row of formulas to the row before it. , Modify:
code :
Set newVRow = Range(newV.Offset(0, 1), newV.Offset(0, 8))
Set newVRow = Range(newV.Offset(-1, 1), newV.Offset(0, 8))
newVRow.AutoFill Destination:=oldVRow, Type:=xlFillDefault
oldVRow.AutoFill Destination:=newVRow, Type:=xlFillDefault
'oldVRow.Select  ' comment this row
'newVRow.Select  ' comment this row
How to insert missing time (by minutes) in data frame? And how to assign corresponding y values for that missing time as

How to insert missing time (by minutes) in data frame? And how to assign corresponding y values for that missing time as


By : user3704791
Date : March 29 2020, 07:55 AM
it helps some times You can create a dataframe with a timestamp being the sequence from the min and max values of your original dataframe and then, make a left join (here using dplyr and lubridate):
code :
library(lubridate)
library(dplyr)
df_or$TimeStamp = mdy_hm(df_or$TimeStamp) # Convert TimeStamp into appropriate date format

DF <- data.frame(TimeStamp = seq(min(df_or$TimeStamp),max(df_or$TimeStamp), by = "min"))
DF %>% left_join(., df_or, by = "TimeStamp")

            TimeStamp MOTOR
1 2020-01-27 18:00:00     0
2 2020-01-27 18:01:00    NA
3 2020-01-27 18:02:00     1
4 2020-01-27 18:03:00    NA
5 2020-01-27 18:04:00     0
6 2020-01-27 18:05:00     1
7 2020-01-27 18:06:00    NA
8 2020-01-27 18:07:00    NA
9 2020-01-27 18:08:00     0
df_or <- data.frame(TimeStamp = c("1/27/20 18:00","1/27/20 18:02","1/27/20 18:04","1/27/20 18:05", "1/27/20 18:08"),
                    MOTOR = c(0,1,0,1,0))
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