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Krishanu
Helper I
Helper I

Power Query text parsing and splitting into records

Hi,

I have the following scenario - data looks like this as exmaple below :

IDQuery
1select * from emp
2select * from dept UNION
select * from hr
3select * from Purchase JOIN Expense
ON Purchase. key = Expense.key
JOIN Money ON Expense.key1 = Money.key1


required outcome:

IDTable
1emp
2dept
2hr
3Purchase
3

Expense

3

Money


tried with Text.BetweenDelimiters  and Table.SplitColumn , but not able to get this.
Please help.

1 ACCEPTED SOLUTION

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUSpOzUlNLlHQUkgrys9VSM0tUIrViVYywpBJSS0oUQj18/T3i8lDlckoAmsxxtASUFqUnJFYnKrg5e/pp+BaUZAK1BmT5+8Hl9FTyE6tVLCFyekBeTF5YNW++XlAGX8/ZClDoEqwOJijFBsLAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [SN = _t, Query = _t]),
    #"Extracted table" = Table.TransformColumns(Source, {"Query", each let l = List.Select(Text.SplitAny(_, " #(lf)"), each _<>""), pos = List.PositionOfAny(l, {"FROM", "JOIN"}, Occurrence.All, Comparer.OrdinalIgnoreCase) in List.Accumulate(pos, {}, (s,c) => s&{l{c+1}})}),
    #"Expanded Query" = Table.ExpandListColumn(#"Extracted table", "Query")
in
    #"Expanded Query"

Screenshot 2021-06-13 233033.png


Thanks to the great efforts by MS engineers to simplify syntax of DAX! Most beginners are SUCCESSFULLY MISLED to think that they could easily master DAX; but it turns out that the intricacy of the most frequently used RANKX() is still way beyond their comprehension!

DAX is simple, but NOT EASY!

View solution in original post

2 REPLIES 2
CNENFRNL
Community Champion
Community Champion

Resort to embedded R or Python with regular expression,

Screenshot 2021-06-13 112940.png


Thanks to the great efforts by MS engineers to simplify syntax of DAX! Most beginners are SUCCESSFULLY MISLED to think that they could easily master DAX; but it turns out that the intricacy of the most frequently used RANKX() is still way beyond their comprehension!

DAX is simple, but NOT EASY!

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUSpOzUlNLlHQUkgrys9VSM0tUIrViVYywpBJSS0oUQj18/T3i8lDlckoAmsxxtASUFqUnJFYnKrg5e/pp+BaUZAK1BmT5+8Hl9FTyE6tVLCFyekBeTF5YNW++XlAGX8/ZClDoEqwOJijFBsLAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [SN = _t, Query = _t]),
    #"Extracted table" = Table.TransformColumns(Source, {"Query", each let l = List.Select(Text.SplitAny(_, " #(lf)"), each _<>""), pos = List.PositionOfAny(l, {"FROM", "JOIN"}, Occurrence.All, Comparer.OrdinalIgnoreCase) in List.Accumulate(pos, {}, (s,c) => s&{l{c+1}})}),
    #"Expanded Query" = Table.ExpandListColumn(#"Extracted table", "Query")
in
    #"Expanded Query"

Screenshot 2021-06-13 233033.png


Thanks to the great efforts by MS engineers to simplify syntax of DAX! Most beginners are SUCCESSFULLY MISLED to think that they could easily master DAX; but it turns out that the intricacy of the most frequently used RANKX() is still way beyond their comprehension!

DAX is simple, but NOT EASY!

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