Hunka.Junk Files

Filed under: Microsoft, Movies, Technology — Tags: , , , , , , — Developer42 @ 17:21

A few times, even with capacity planning in place, we’ve hit disk capacity limits.
When this occurs you search for content which can be deleted to free up some space to get you moving again.
Here’s my new quick fix for this: HunkaJunk files.
Create dummy files which take up space, but can be quickly & easily deleted without risk; giving you teh wiggle room you need to get moving again.

There are various ways this could be done, but a useful tool is FSUtil.
This allows you to create blank files which take up a defined number of bytes.
e.g. to create a 1GB file you could run the following code from the Windows command line.

fsutil file createnew c:\PurgeForDiskSpace\Hunka.Junk 1073741824

– c:\PurgeForDiskSpace\Hunka.Junk – is the filename of your junk file (you can call it anything; just make it obvious)
– 1073741824 – is the filesize in bytes. NB: 1GB = 1024MB = 1024 * 1024 KB = 1024 * 1024 * 1024 bytes = 1,073,741,824 bytes.


Microsoft Dynamics AX 2012 Chart of Accounts Advanced Validation Rules SQL

A follow up to an earlier article: Microsoft Dynamics AX 2012 Chart of Accounts Validation Rules SQL.

The Advanced Rules can be found in AX under: General Ledger > Setup > Chart of accounts > Configure account structures > select account structure > Advanced rule.
Here’s a small sample of our advanced rules from AX:

Advanced Rules in AX

Advanced Rules in AX

Here’s the same rule (results row 9), as produced by the below SQL:

AX Advanced Rules in SQL

AX Advanced Rules in SQL

Full SQL:

select AdvancedRule
, dr.description Name
, a.Name AccountStructure
, a.Description ASDescription
, case when dr.IsDraft =1 then 'Draft' else 'Active' end [Status] --seems to just duplicate the IsDraft info
, dr.IsDraft Draft
, drc.Filter
, dh.Name ARSAdvancedRuleStructure
from DimensionRule dr
inner join DimensionHierarchy a on a.recid = dr.AccountStructure and a.Partition = dr.Partition
inner join (
       select drcO.DimensionRule
       , drcO.Partition
       , stuff
                     select ' And ' + da.Name + ' '
                     + case
                           when coalesce(drcI.WildCardString,'') > ''
                                  then case
                                         when drcI.WildCardString like '\%%\%' escape '\' then 'contains '
                                         when drcI.WildCardString like '%\%' escape '\' then 'begins with '
                                         when drcI.WildCardString like '\%%' escape '\' then 'ends with '
                                         else 'equals '
                                  end + quotename(replace(drcI.WildCardString,'%',''),'''')
                           when drcI.IsFromOpen = drcI.IsToOpen then --if both are 0 or both are 1 (second scenario seems weird, but that's how the app behaves)
                                         when drcI.RangeFrom = drcI.RangeTo then 'Is ' + quotename(drcI.RangeFrom,'''')
                                         else 'Between ' + quotename(drcI.RangeFrom,'''') + ' through ' + quotename(drcI.RangeTo,'''')
                                            --in the below statements IsFromOpen and IsToOpen seem to behave backwards to what you'd expect; but again that's what the app does
                           when drcI.IsFromOpen=1 and drcI.IsToOpen=0 then 'Greater than or equal to ' + quotename(drcI.RangeFrom,'''')
                           when drcI.IsFromOpen=0 and drcI.IsToOpen=1 then 'Less than or equal to ' + quotename(drcI.RangeTo,'''')
                           else '-UNEXPECTED SCENARIO; SPEAK TO JB-' --this should nevere happen
                     FROM DimensionRuleCriteria drcI
                     inner join DimensionAttribute da on da.RecId = drcI.DimensionAttribute and da.Partition = drcI.Partition
                     where drcI.DimensionRule = drcO.DimensionRule and drcI.Partition = drcO.Partition
                     order by da.Name --drcI.RecId
                     for xml path(''), type
       ,1,4,'Where') Filter
       FROM DimensionRuleCriteria drcO
       group by drcO.Partition
       , drcO.DimensionRule
) drc on drc.DimensionRule = dr.RecId and drc.Partition = dr.Partition
inner join DimensionRuleAppliedHierarchy drah on drah.DimensionRule = dr.RecId and drah.Partition = dr.Partition
inner join DimensionHierarchy dh on dh.recid = drah.DimensionHierarchy and dh.Partition = drah.Partition
order by a.Name,, dh.Name, dr.IsDraft

NB: One anomaly you may notice is some rules appear twice; once as Draft and once as Active. This is where an existing rule is being edited; the existing rule remains active whilst its replacement is created in draft status. When you browse the rules you’ll see the draft rule; however the active rule is the one being applied in any validation.

PowerShell Script :: Combine-Paths

Filed under: Microsoft, Technology — Tags: , , , , , , , — Developer42 @ 18:34

When you wish to create paths based on various combinations of strings, the following accepts a root plus an array of arrays and returns all combinations:

function combine-paths([string]$root,[array]$paths)
    if(($paths -ne $null) -and ($paths.length -gt 0))
        [array]$roots = $paths | select -first 1
        [array]$tail = @($paths | select -skip 1) #@() used to prevent final array from becoming an array of strings instead of a single-element array containing an array of strings
        $roots | %{combine-paths -root (join-path $root $_) -paths $tail}

$x = ('PROD','UAT','SIT'),('SystemA','SystemB','SystemC'),'Interfaces',('In','Out')
combine-paths -root '\\myFileShare\' -paths $x

NB: If you had multiple roots you could do the following:

'c:\','\\somewhere' | %{combine-paths -root $_ -paths $x}

Or amend the function to become a cmdlet taking root from the pipeline to simplify the above further / or add logic to allow the root to be blank/unspecified and to just pass `$_` instead of `(join-path $root $_)` where root is blank/null.
I’ve not done that here in order to keep the code short & simple.

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