PowerBI struggling to fill empty cell in column based on start date and end date conditions

[Maxgurung]

I am new to powerBI and struggling to copy data in powerbi table. I am tring to add column where if well_name is as said in well_name column and the start date and end date is as said in start date and end date column then fill the esp_id between those date. eg. for R-010 wellname, i want the esp_id to be filled in as 357106 between recorded_date 28/july/2018 to 06/August/2021 and like wise for R-001, esp_id 354504 to be filled in dates between 23/feb/2017 to 19/may/2018. is this possible?

See screen shot for more clarity.

Many thanks

[amitchandak]

@Maxgurung , Try a new column , change columns as per need 

Switch( True(),
[Wellname] ="R-010" && [Recorded Date] >= Date(2018,07, 28) && [Recorded Date] <= Date(2018,08, 06), 357106 ,
[Wellname] ="R-001" && [Recorded Date] >= Date(2017,02, 17) && [Recorded Date] <= Date(2018,05, 19), 354504
)

[Maxgurung]

Hi Amit,

Thanks for quick response. However, the job is more complicated then mentioned. I have 100s of well name so i wanted it to be able to detect the well name itself (a bit like vlookup in excel) as if not i will be typing it manually. also i have 100s of esp_id and i want the query to identify esp_id for that well name at that date. eg. for well R-010, the esp id is listed once with start date on 28/july/2018. that means for all the entry with R-010 well name, from 28/july/2018, i wanted the esp_id listed at start date of 28/july/2018 to fill in the column. Hope this makes sense.

Thank you for help!

Max

[v-rzhou-msft · Accepted solution]

Hi @Maxgurung 

I think you can try to transform your table in Power Query Editor.

Here is my M code.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("hdLLCcMwEIThVozOFuyOokfayNW4/zaiOLl4R2TAF/EhY37PcaRXNre0J5iPbD1fh99z7gt34RBehD+EV+FNeBc+hD//O0Q/iH4Q/SD6QfSD6AfRD6IfBh/g2eb58+ZSu1vb1ldF2iLSFkpbr7XMD7C528V0g1P64JQ+OKUPTumDt3j4Bqulb+sL9C+C05aDU/C785aDi6C85eAi6G3L5xs=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [wellbore_ID = _t, RECORDED_DATE = _t, start_date = _t, end_date = _t, esp_id = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"wellbore_ID", type text}, {"RECORDED_DATE", type date}, {"start_date", type date}, {"end_date", type date}, {"esp_id", Int64.Type}}),
    #"Grouped Rows" = Table.Group(#"Changed Type", {"wellbore_ID"}, {{"Rows", each _, type table [wellbore_ID=nullable text, RECORDED_DATE=nullable date, start_date=nullable date, end_date=nullable date, esp_id=nullable number]}}),
    #"Duplicated Column" = Table.DuplicateColumn(#"Grouped Rows", "Rows", "Rows - Copy"),
    #"Expanded Rows - Copy" = Table.ExpandTableColumn(#"Duplicated Column", "Rows - Copy", {"start_date", "end_date", "esp_id"}, {"Rows - Copy.start_date", "Rows - Copy.end_date", "Rows - Copy.esp_id"}),
    #"Filtered Rows" = Table.SelectRows(#"Expanded Rows - Copy", each ([#"Rows - Copy.start_date"] <> null)),
    #"Expanded Rows" = Table.ExpandTableColumn(#"Filtered Rows", "Rows", {"RECORDED_DATE", "start_date", "end_date", "esp_id"}, {"Rows.RECORDED_DATE", "Rows.start_date", "Rows.end_date", "Rows.esp_id"}),
    #"Renamed Columns" = Table.RenameColumns(#"Expanded Rows",{{"Rows.RECORDED_DATE", "RECORDED_DATE"}, {"Rows - Copy.start_date", "start_date"}, {"Rows - Copy.end_date", "end_date"}, {"Rows - Copy.esp_id", "Test_esp_id"}}),
    #"Added Custom" = Table.AddColumn(#"Renamed Columns", "Result", each if [RECORDED_DATE]>=[start_date] then if [end_date] = null then [Test_esp_id] else if [RECORDED_DATE]<=[end_date] then
[Test_esp_id] else null else null),
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Test_esp_id", "start_date", "end_date"}),
    #"Renamed Columns1" = Table.RenameColumns(#"Removed Columns",{{"Rows.esp_id", "esp_id"}, {"Rows.end_date", "end_date"}, {"Rows.start_date", "start_date"}})
in
    #"Renamed Columns1"

Result is a below.

Best Regards,
Rico Zhou

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.