我如何修改查询以添加if statement
来检查源中是否实际包含文本?如果不是,我想输出诸如n/a
之类的特定文本吗?
let
Source = Csv.Document(File.Contents("C:\Users\ceusebio\OneDrive - Hypertec\RESULTS\HT.LogArnold.txt"),[Delimiter=",", Columns=2, Encoding=1252, QuoteStyle=QuoteStyle.None]),
#"Split Column by Delimiter" = Table.SplitColumn(Source, "Column1", Splitter.SplitTextByDelimiter("image at ", QuoteStyle.Csv), {"Column1.1", "Column1.2"}),
#"Split Column by Delimiter1" = Table.SplitColumn(#"Split Column by Delimiter", "Column1.1", Splitter.SplitTextByDelimiter("samples max ", QuoteStyle.Csv), {"Column1.1.1", "Column1.1.2"}),
#"Split Column by Delimiter2" = Table.SplitColumn(#"Split Column by Delimiter1", "Column1.1.1", Splitter.SplitTextByDelimiter("render done in ", QuoteStyle.Csv), {"Column1.1.1.1", "Column1.1.1.2", "Column1.1.1.3", "Column1.1.1.4"}),
#"Split Column by Delimiter3" = Table.SplitColumn(#"Split Column by Delimiter2", "Column1.2", Splitter.SplitTextByDelimiter(" x ", QuoteStyle.Csv), {"Column1.2.1", "Column1.2.2", "Column1.2.3"}),
#"Removed Other Columns" = Table.SelectColumns(#"Split Column by Delimiter3",{"Column1.1.1.2", "Column1.1.2", "Column1.2.1", "Column1.2.2", "Column2"})
in
#"Removed Other Columns"
预先感谢
答案 0 :(得分:0)
我假设您的意思是如果文本文件返回了任何行。
一种简单的方法是检查初始源中的行数,然后在最后一步中验证结果。
let
Source = Csv.Document(File.Contents("C:\temp\test.txt"),[Delimiter=",", Columns=2, Encoding=1252, QuoteStyle=QuoteStyle.None]),
RowCount = Table.RowCount(Source),
#"Split Column by Delimiter" = Table.SplitColumn(Source, "Column1", Splitter.SplitTextByDelimiter("image at ", QuoteStyle.Csv), {"Column1.1", "Column1.2"}),
#"Split Column by Delimiter1" = Table.SplitColumn(#"Split Column by Delimiter", "Column1.1", Splitter.SplitTextByDelimiter("samples max ", QuoteStyle.Csv), {"Column1.1.1", "Column1.1.2"}),
#"Split Column by Delimiter2" = Table.SplitColumn(#"Split Column by Delimiter1", "Column1.1.1", Splitter.SplitTextByDelimiter("render done in ", QuoteStyle.Csv), {"Column1.1.1.1", "Column1.1.1.2", "Column1.1.1.3", "Column1.1.1.4"}),
#"Split Column by Delimiter3" = Table.SplitColumn(#"Split Column by Delimiter2", "Column1.2", Splitter.SplitTextByDelimiter(" x ", QuoteStyle.Csv), {"Column1.2.1", "Column1.2.2", "Column1.2.3"}),
#"Removed Other Columns" = Table.SelectColumns(#"Split Column by Delimiter3",{"Column1.1.1.2", "Column1.1.2", "Column1.2.1", "Column1.2.2", "Column2"}),
Result = if RowCount = 0 then "n/a" else #"Removed Other Columns"
in
Result
让我知道这是否是您所期望的