Active Directory – Okay to delete SQLServer2005 security groups?

Our office has three servers with WS2016 standard. We upgraded SBS 2011 a few years ago. Some things still exist from that time. I don't think the following security groups are related to the SBS installation, but I'm not sure. They have no members and are not members of other groups. We run a couple of SQL servers, but I don't think it's SQL 2005 either.

I'm pretty sure these can be deleted safely, but I'm not very familiar with SQL, so I wanted to be sure. The server starting with WIN was a failed installation and no longer exists.

ADUC screenshot

Add two sums with groups

((SELECT SUM (itemb.qty_invoiced * (IF IF cod.disc> 0 THEN itemb.price * (1-cod.disc / 100))
OTHER itemb.price END)) FROM itemb
INNER JOIN cod ON (itemb.co_num = cod.co_num)
GROUP BY cod.co_num
) + (SELECT SUM ((itemb.qty_invoiced * (IF IF cod.disc> 0 THEN itemb.price * (1-cod.disc / 100))
ELSE itemb.price END) * 0.12)) FROM itemb
INNER JOIN cod ON (itemb.co_num = cod.co_num)
GROUP BY cod.co_num)) AS TotValue

When we execute this instruction, this error is displayed

The data types text, ntext and image> can only be compared or sorted if the operator IS NULL or LIKE> is used

Representation theory of 3-stage nilpotent finite groups

I am interested in understanding the representation theory of certain finite nilpotent groups (via the complex numbers). The groups $ G $ of interest have the following properties:

1) G is $ 3 $step nilpotent finite group

2) G is a $ 2 $-Group

3) G is an extension of a 2-stage nilpotent group H by $ mathbb {Z} / 2 mathbb {Z} $,

I know that the irreducible representations of a finite nilpotent group are monomial, and there is a unified construction of these representations in the case of $ 2 $step nilpotent groups. For a $ 2 $step nilpotent group $ H $, any irreducible representation $ rho $ of $ H $ the dimension greater than $ 1 $ is induced from a character of a fixed maximum Abelian subgroup $ S $ of $ H $, Actually $ rho $ is determined by its central character.


What can be said about the representation theory of $ G $? Can we identify a minimal set of subgroups that can be used to construct each irreducible representation as a monomial representation? (For example for a $ 2 $step nilpotent group We need a maximum Abelian subgroup and the group itself.)

I would appreciate thoughts on this question and references to 1-3 above. That is, all references to the representation theory of $ 3 $-step nilpotent groups, $ 2 $-Groups or double extensions of $ 2 $step nilpotent group or any combination thereof.

Sincerely yours,


ab-Tests – Define cohorts, time frames and comparison groups for the success of features

Whenever you need to analyze the success of a particular feature, we always have to compare a cohort that used the new feature with a cohort that didn't use the new feature. The best way to do this is through A / B testing, but due to our small team, this has not been done. Therefore, all users were given access to the function.

But now faced with another problem to measure the success of this function – how do we compare it? What time frames do we use?

Get a list from Facebook for sales groups from all over the US, 38 million members




Link image:

Multiplication by an element of infinite order in Coxeter groups

To let $ left (W, S right) $ be an irreducible Coxeter group. To the $ v, w in W $ write $ v leq w $ if $ left | v ^ {- 1} w right | = left | w right | – left | v right | $ Where $ left | cdot right | $ denotes the word length. To let $ s_ {1}, s_ {2}, … in S $ Elements so that the expression $ s_ {1} … s_ {n} $ is reduced for everyone $ n in mathbb {N} $, Leave on $ h in W $ to be of infinite order.

question, Let's assume that for everyone $ m in mathbb {N} $ there are a few $ N in mathbb {N} $ With begin {eqnarray} alpha_ {m} leq h alpha_ {n} text {and} h alpha_ {m} leq alpha_ {n} text {for everyone} n geq N text {. } end {eqnarray} Does this mean that one of the following statements is true?

  • For each $ m ^ { prime} in mathbb {N} $ there are $ N ^ { prime} in mathbb {N} $ With $ h ^ {m ^ { prime}} leq s_ {1} … s_ {n ^ { prime}} $ for all $ n ^ { prime} geq N ^ { prime} $;;

  • For each $ m ^ { prime} in mathbb {N} $ there are $ N ^ { prime} in mathbb {N} $ With $ h ^ {- m ^ { prime}} leq s_ {1} … s_ {n ^ { prime}} $ for all $ n ^ { prime} geq N ^ { prime} $,

SQL Server – Group data with an interval, but with overlapping time range groups

I have currently created a query group that returns a list of time with an interval of 15 minutes and the list of counting units

Enter the image description here

    DATEADD(MINUTE, (DATEDIFF(MINUTE, '20000101', DATETIME_COLUMN) / 15)*15, '20000101')

However, this only groups them by 15 minutes. Is there any way to group them as shown in the picture? Data overlap is expected when the time range overlaps.

Applications – Is there an Android app to share selected contact lists (groups) with another Android user?

I have a small business with two team members (me and another colleague). I am looking for an app (preferably free of charge) with which I can share selected contact lists (or contact groups) with my colleague in real time. For example, when I receive a call from a potential customer and save their number with some notes (e.g. their requirements), my colleague should also be able to see them on his phone. Is there an app for this? If not, what would be a good way to achieve this. I don't want to share all my contacts with him, but only selected ones (let's say I save some of certain groups / lists). I know I can easily "send" the contact to him through messaging services, but I would prefer automatic sharing, which is updated in real time.

P.S. I hope the question is new to this group.

SharePoint permissions via Powershell for Active Directory groups

I have the following folder structure in a SharePoint Document Center library:

 - Site A
  - Site AManagement
 - Site B
  - Site BManagement
 - Site C
  - Site CManagement

With the following Active Directory groups:

 - Access Site A Staff
 - Access Site A Management
 - Access Site B Staff
 - Access Site B Management
 - Access Site C Staff
 - Access Site C Management

Employee groups should have permission to read, create, write, and delete subfolders and files for their site, but not a vision of the management folder.

Management groups should have permission to read, create, write, and delete subfolders and files for their location, including the management folder.

All folders already exist together with the Active Directory groups, but can be deleted / recreated since they are not currently in a production environment.

Repeat this for about 700 locations.