I created a derived column to include a Fiscal Year in an ssis package. The package includes a DateDimension with a FiscalYear column. The data in the column is displayed as “SFY2018Q1”. The Column name is displayed as “[[$DATE_DIM].[FQUARTER]]
The expression I created should display only the year “2018” from the DateDimension. However, is not resolving “is red” in the derived column. Below is the expression I created.
LEFT(RIGHT([$Date_DimFQuarter],3),2)
I also attempted the expression by excluding the “$”, and by adding the Table name DateDim. Neither of those modifications work.
Any assistance on what I am doing wrong is greatly appreciated.
just double click derived column toolbox then drag and drop your column from columns tree, your expression must be LEFT(RIGHT([YourColumn],3),2).
so try not to write the column by your self, just drag and drop it.
Related
I created a Derived Column with a Expression
(dummy sample)
iif(columnX=='true',1,0)
This expression will be util in anothers Derived Columns, so I'd like create a Local with this Expression, but in the place of columnX I'll put a parameter for another column
Is it possible? How?
I tried creating a data flow parameter (param2) and added your expression to it using a different parameter (param1) instead of ColumnX.
But I was not able to change the parameter value in the expression later, it was only taking the default value. Also did not find any related documents to assign a column value to a parameter in the data flow.
The only way I could think of is, using the expression multiple times in different derived columns taking different columns in place of ColumnX.
Derived column1: Added expression to the new column (col1)
Preview of Derived column1: Evaluating expression against Sample1 column.
Derived column2: Reusing same column name Col1 to evaluate the expression against Sample2 column. If the previous value is needed, you can assign the previous value of Col1 to the new column (previous_col1) in derived column2 as shown in the below snip.
Preview of derived column2
I have two tables with similar columns
Apply append, all details were ok except for the date of the new table.
Old data dates are available, but the new one is missing and specified as "null"
I check their format, both are the same
Anyone once knows what is the issue.
Below screenshot for reference
enter image description here
It's look like new table has different column name for date.
I'm trying to convert eight digit yyyymmdd to date format with DAX function.
column = DATE(LEFT(TABLE[COLUMN],4),MID(TABLE[COLUMN],5,2),RIGHT(TABLE[COLUMN],2))
However, I've got an error because of the original column has some records with "00000000", so how can I make a default value with IF statement or are there any better solution?
Best regards
What I typically do is just make 2 distinct Power Query steps and this is handled automatically.
just make the yyyymmdd column a text column
make the text column from step 1 a date column (when prompted, be sure to select 'Add New Step')
replace errors with null
That's it. You can even Ctrl-Click to select multiple columns and combine them into the 1,2, and 3 steps with multiple columns.
Please check out "ferror" function IFERROR(value, value_if_error) for more information please visit Microsoft MSDN with link below
https://msdn.microsoft.com/en-us/library/ee634765.aspx
column = IFERROR( DATE(LEFT(TABLE[COLUMN],4),MID(TABLE[COLUMN],5,2),RIGHT(TABLE[COLUMN],2)), DATE(yyyy,mm,dd))
I'm using Tableau. So, instead of giving the [Column_name], Is it possible to give [Column_number] in column shelf?
- Hariharasudhan. R.
No -- for good reason.
Think of the data source as a template for a potential SQL (or MDX or TQL) query; specifying tables, joins, unions and possibly some where/having clauses for data source filters.
The actual SQL generated for any particular view will be an (optimized) query that only selects columns that are actually needed for that particular view, adds where/having clauses based on the filters being used etc.
So a column doesn't have a fixed number. The same column may be the first field selected in one situation, the last field in another situation, and left off completely in another.
If you want to change the name of column shelf:
Create a duplicate of variable and change original with duplicates and assign name as your wish by right-click on Edit Aliases and change as per your requirement.
Go to Data Source
On the middle right corner check on Show aliases
Go to column and right click on it. Go to Rename
I need an expression to take an existing column and recreate this column over and over before another column/s where the column name contains either "Monday" or the date of the column falls on Monday.
The reason I need this expression is to repeat a header column in a pivoted report that is pivoting start/enddate parameter. So if a user selects to run the report for this month, they should get 31 columns (for each date/day) and header repeating before every Monday.
Make sure your dataset contains all the dates in your date range. If not create a date table and cross join to it. Don't pivot the results, let SSRS do that bit. Once your dataset has all the dates, you can use a matrix in your report and drop the date colum into the column group. This will give you one column for each date in your dataset. I'm not at my PC at the moment but if you need any more help, show an example of your dataset and I'll put together a quick sample report.