Select 更多行基于列条件 MSSQL

Question

I'm trying to retrieve a list of ResourceGroupName from my ResourceGroup Table. The tricky part to me is, GroupsId is subset of ResourceGroupId (Primary Key for Resource Group), which means I want to be able to select all the ResourceGroupName if my condition meets ResourceGroupName = 'A30_1RecourceGrp' because this resource group has 2 subsets which are GroupId = '0014e68000000192' and '0014e6800000001b' which is the 2 records below.

This is the table that I need to SELECT FROM

And the result I wanted to achieve is

MY MSSQL knowledge is very limited and I couldn't find a way to write it, I'm stucked at the SQL below and it only shows 1 result.

SELECT * from ResourceGroup rg
LEFT JOIN ResourceGroupGroups rgg ON rgg.ResourceGroupId = rg.ResourceGroupId
WHERE rg.ResourceGroupId = '0014e68000000002'

Any help is much appreciated. Thank you!

Update:

ResourceGroup Table

ResourceGroupGroups Table

Answer 1

You could try using distinct

SELECT distinct rrg.ResourceGroupName 
from ResourceGroup rg
LEFT JOIN ResourceGroupGroups rgg ON rgg.ResourceGroupId = rg.ResourceGroupId
WHERE rg.ResourceGroupId = '0014e68000000002'

Answer 2

There are some ways to do it(cause I don't know how is your structure of tables is):

1- Use the Distinct keyword like below

SELECT Distinct ResourceGroupName 
from ResourceGroup rg
LEFT JOIN ResourceGroupGroups rgg ON rgg.ResourceGroupId = rg.ResourceGroupId
WHERE rg.ResourceGroupId = '0014e68000000002'

or in this way:

select Distinct ResourceGroupName from ResourceGroupGroups rgg
where rgg.ResourceGroupId in (
   SELECT ResourceGroupId  
    from ResourceGroup rg
 WHERE rg.ResourceGroupId = '0014e68000000002'
)

2- use the Group by command to group your result by ResourceGroupName

3- use partition by and row_number windowing functions and select 1st records

Update:
Based on the ResourceGroup table structure in question, you can just query on this table and even don't need to join, like below:

select ResourceGroupName 
from ResourceGroup 
where ResourceGroupId = '0014e68000000002'