Forum Discussion
Creating new rows based on previous rows
I am not sure if this can be done in Power Query (I am using Power BI). I am looking to create some new rows based on the existing data. It's almost like doing a bit of an unpivot but to an existing column and appending some info. Here is the data I have:
| EntityId | FieldId | FieldValue | FieldDate |
| abc123 | 1234 | 1264207944 | 1/1/2010 |
| abc123 | 1666 | 4326.43 | 1/1/2010 |
| abc123 | 1235 | Low Risk | 1/1/2010 |
| abc123 | 98756 | 789 | 1/1/2010 |
| abc123 | 2456 | 2680 | 1/1/2010 |
Here is what I am trying to accomplish (in order to do some compares to the source system):
| EntityId | FieldId | FieldValue |
| abc123 | 1234 | 1264207944 |
| abc123 | 1234_FieldDate | 1/1/2010 |
| abc123 | 1666 | 4326.43 |
| abc123 | 1666_FieldDate | 1/1/2010 |
| abc123 | 1235 | Low Risk |
| abc123 | 1235_FieldDate | 1/1/2010 |
| abc123 | 98756 | 789 |
| abc123 | 98756_FieldDate | 1/1/2010 |
| abc123 | 2456 | 2680 |
| abc123 | 2456_FieldDate | 1/1/2010 |
Can this be done in Power Query?
Hello Anonymous
whenever you have a logic, there is a way to make it work in power query. What you think of using an Unpivoting-function on your last two colums? You can try this code
let Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WSkxKNjQyVtJRApImYMrMxMjA3NIEzNE31DcyMDRQitVBVmlmZgakTIyNzPRMjHErMzI2BVI++eUKQZnF2TjVWVqYm4LMM7ewxKnGyASsxMjMwgBFTSwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [EntityId = _t, FieldId = _t, FieldValue = _t, FieldDate = _t]), #"Changed Type" = Table.TransformColumnTypes(Source,{{"EntityId", type text}, {"FieldId", Int64.Type}, {"FieldValue", type text}, {"FieldDate", type date}}, "en-US"), #"Unpivoted Columns" = Table.UnpivotOtherColumns(#"Changed Type", {"EntityId", "FieldId"}, "Attribute", "Value") in #"Unpivoted Columns"Copy paste this code to the advanced editor in a new blank query to see how the solution works.
If this post helps or solves your problem, please mark it as solution (to help other users find useful content and to acknowledge the work of users that helped you)
Kudoes are nice too
Have fun
Jimmy
3 Replies
Hello Anonymous
whenever you have a logic, there is a way to make it work in power query. What you think of using an Unpivoting-function on your last two colums? You can try this code
let Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WSkxKNjQyVtJRApImYMrMxMjA3NIEzNE31DcyMDRQitVBVmlmZgakTIyNzPRMjHErMzI2BVI++eUKQZnF2TjVWVqYm4LMM7ewxKnGyASsxMjMwgBFTSwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [EntityId = _t, FieldId = _t, FieldValue = _t, FieldDate = _t]), #"Changed Type" = Table.TransformColumnTypes(Source,{{"EntityId", type text}, {"FieldId", Int64.Type}, {"FieldValue", type text}, {"FieldDate", type date}}, "en-US"), #"Unpivoted Columns" = Table.UnpivotOtherColumns(#"Changed Type", {"EntityId", "FieldId"}, "Attribute", "Value") in #"Unpivoted Columns"Copy paste this code to the advanced editor in a new blank query to see how the solution works.
If this post helps or solves your problem, please mark it as solution (to help other users find useful content and to acknowledge the work of users that helped you)
Kudoes are nice too
Have fun
JimmyHello
Exactly. The only thing you have to pay attention that you cannot concatenate numbers and text. Use text.from to get a text value from your numbers column.
All the best
Jimmy