Piezīme
Šis ir viens no rakstu sērijas, kurā sīki aprakstīti Podcast 2316 izaicinājumam nosūtītie risinājumi.
Sākotnējā videoklipā par datu pārveidošanu es nonācu vietā, kur man vajadzēja iegūt pirmās 2 rakstzīmes no kolonnas. Mana metode ietvēra sadalīšanas kolonnu, lai ģenerētu pirmās 2 rakstzīmes un visu pārējo. Pēc tam visu pārējo izdzēsu.
Maiks Girvins no ExcelisFun kanāla, kā arī Brendons Brimberijs, Vins Hopkinss no Access Analytic, Geerts Demulle atzīmēja, ka ātrāks veids būtu Transform, Extract, First Characters.
Tādējādi tiek saglabāta tikai ceturkšņa informācija, un nav nepieciešams dzēst pārējo kolonnu.
Bohdans Duda izmantoja izvilkto tekstu pirms atdalītāja, lai iegūtu visu pirms rakstzīmes _.
Maiks Girvins atzīmēja, ka viņa risinājums bija "ātrs, ātri, pirms es esmu ārpus durvīm". Šeit ir viņa kods:
let Source = Excel.CurrentWorkbook()((Name="BadStartData"))(Content), #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(Source, ("Category Description"), "Quarter", "Amount"), #"Added Custom" = Table.AddColumn(#"Unpivoted Other Columns", "Employee", each if not Text.StartsWith((Quarter),"Q") then (Quarter) else null), #"Filled Down" = Table.FillDown(#"Added Custom",("Employee")), #"Extracted First Characters" = Table.TransformColumns(#"Filled Down", (("Quarter", each Text.Start(_, 2), type text))), #"Filtered Rows" = Table.SelectRows(#"Extracted First Characters", each Text.StartsWith((Quarter), "Q")), #"Pivoted Column" = Table.Pivot(#"Filtered Rows", List.Distinct(#"Filtered Rows"(Quarter)), "Quarter", "Amount", List.Sum), #"Filtered Rows1" = Table.SelectRows(#"Pivoted Column", each ((Employee) "Dept. Total")), #"Inserted Sum" = Table.AddColumn(#"Filtered Rows1", "Total", each List.Sum(((Q1), (Q2), (Q3), (Q4))), type number), #"Sorted Rows" = Table.Sort(#"Inserted Sum",(("Employee", Order.Ascending),("Category Description", Order.Ascending))), #"Changed Type" = Table.TransformColumnTypes(#"Sorted Rows",(("Q1", type number), ("Q2", type number), ("Q3", type number), ("Q4", type number), ("Total", type number), ("Employee", type text), ("Category Description", type text))) in #"Changed Type"Šeit ir Geerta DeMulles risinājums:
let Source = Excel.CurrentWorkbook()((Name="tblUglyData"))(Content), #"Changed Type" = Table.TransformColumnTypes(Source,(("Category Description", type text), ("Dept. Total", type number), ("Q1", type number), ("Q2", type number), ("Q3", type number), ("Q4", Int64.Type), ("Employee 1", type number), ("Q12", type number), ("Q23", type number), ("Q34", Int64.Type), ("Q45", Int64.Type), ("Employee 2", Int64.Type), ("Q16", Int64.Type), ("Q27", Int64.Type), ("Q38", Int64.Type), ("Q49", Int64.Type), ("Employee 3", Int64.Type), ("Q110", Int64.Type), ("Q211", Int64.Type), ("Q312", Int64.Type), ("Q413", Int64.Type), ("Employee 4", type number), ("Q114", type number), ("Q215", type number), ("Q316", type number), ("Q417", Int64.Type))), #"Removed Columns" = Table.RemoveColumns(#"Changed Type",("Dept. Total", "Q1", "Q2", "Q3", "Q4")), #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Removed Columns", ("Category Description"), "Attribute", "Value"), #"Added Conditional Column" = Table.AddColumn(#"Unpivoted Other Columns", "Employee", each if Text.StartsWith((Attribute), "Employee") then (Attribute) else null), #"Filled Down" = Table.FillDown(#"Added Conditional Column",("Employee")), #"Filtered Rows" = Table.SelectRows(#"Filled Down", each Text.StartsWith((Attribute), "Q")), #"Extracted First Characters" = Table.TransformColumns(#"Filtered Rows", (("Attribute", each Text.Start(_, 2), type text))), #"Renamed Columns" = Table.RenameColumns(#"Extracted First Characters",(("Attribute", "Quarter"))), #"Pivoted Column" = Table.Pivot(#"Renamed Columns", List.Distinct(#"Renamed Columns"(Quarter)), "Quarter", "Value"), #"Changed Type1" = Table.TransformColumnTypes(#"Pivoted Column",(("Employee", type text))), #"Inserted Sum" = Table.AddColumn(#"Changed Type1", "Total", each List.Sum(((Q1), (Q2), (Q3), (Q4))), type number), #"Sorted Rows" = Table.Sort(#"Inserted Sum",(("Employee", Order.Ascending), ("Category Description", Order.Ascending))) in #"Sorted Rows"Atgriezieties uz Podcast 2316 izaicinājuma galveno lapu.
Izlasiet nākamo šīs sērijas rakstu: Power Query: kolonnas Kopā pievienošana.
