PQ Easiest Way to Set Table2 Column Types equal to Table1?

[cr731]

I have two tables, Table1 and Table2, and I want to set all of the column types of Table2 the same as Table1. All columns will be the same. What's the easiest way to do this? I was thinking of something with Value.Type(Table1) but I'm not sure how to use that in Table2.

Thanks

 

[Ozeroth]

Hi,
Yes that's right, you should to use Value.Type to get the type of Table1.

The full syntax to replace the table type is:

= Value.ReplaceType( [B]Table2[/B], Value.Type( Table1 ) )

or replace Table2 by the name of the previous step if part of a query.

Regards
Owen

 

[cr731]

Hi,
Yes that's right, you should to use Value.Type to get the type of Table1.

The full syntax to replace the table type is:

= Value.ReplaceType( [B]Table2[/B], Value.Type( Table1 ) )

or replace Table2 by the name of the previous step if part of a query.

Regards
Owen

Thanks - Value.ReplaceType is what I was missing.

One thing though - if Table1 has a column with type date, that column in Table2 becomes type datetime, which isn't really what I would want when the data gets returned to Excel. Not a huge issue but if there were a way to ensure the types were identical it would be ideal.

 

[Ozeroth]

Hmm...I can see that using Value.ReplaceType may change the table's type, but the values in any given column do not automatically adjust to that type. Is that the problem you are seeing?
For example, a column of integers representing date serial numbers would not appear as dates even if I used Value.ReplaceType with a table type that had that column as a date column.

Maybe there's no getting around changing the types of the values in the columns...
You could use some combination of Value.Type, Type.TableColumn and Table.TransformColumnTypes.