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How to find out hierchy of employee?

This is a discussion on How to find out hierchy of employee? within the pgsql Interfaces Pgadmin Support forums, part of the PostgreSQL category; --> Hai, I have proper knowledge in Oracle 9i as wel as PostgreSQL. I have written a query in Oracle-SQL ...


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  #1 (permalink)  
Old 04-17-2008, 07:28 PM
VivekanandaSwamy R.
 
Posts: n/a
Default How to find out hierchy of employee?


Hai,
I have proper knowledge in Oracle 9i as wel as PostgreSQL.
I have written a query in Oracle-SQL like the following...

select level,substr(lpad(' ',level*2)||ename,1,20) name from emp
start with ename='KING'
connect by prior empno=MGR;
/
LEVEL NAME
---------- -----------
1 KING
2 JONES
3 SCOTT
4 ADAMS
3 FORD
4 SMITH
2 BLAKE
3 ALLEN
3 WARD
3 MARTIN

Now, i need same result in PostgreSQL.Is there any possiblity to find
out the heirchy of employees?



Thanks & Regards

Vivekananda.R | Software Engineer

Infinite Computer Solutions | Exciting Times...Infinite Possibilities...


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  #2 (permalink)  
Old 04-17-2008, 07:28 PM
Derrick Betts
 
Posts: n/a
Default Re: How to find out hierchy of employee?

In looking at your result set, it appears that there is no way of determining which employee is responsible to which manager. This is how I've done it:
Every employee is assigned a StationID. For example a Sr. Manager or Administrator is assigned an ID of 'B01' (Business unit 01).
Then every manager under that Sr. Manager is assigned a StationID that ties them to the Sr. Manager. For Example 'B01A', or 'B01B' ... 'B01ZZ'.
Then every employee under that Manager is assigned a StationID that ties them to their specific Manager. For example 'B01A1' or 'B01A2'. Or for a different Manager 'B01ZZ1' or 'B01ZZ2'.

Now you can do a query to select all employees under a Sr. Manager, Manager, or etc. by performing this type of simple Query:
"SELECT employee_name WHERE stationid LIKE 'B01%';" This will return all the employees whose StationID matches that of the Sr. Manager. If you only want the employees under a Manager, just change the LIKE clause in the query to: LIKE 'B01ZZ%'

Hope this helps.
Derrick Betts
----- Original Message -----
From: VivekanandaSwamy R.
To: pgadmin-support@postgresql.org
Cc: pgadmin-support@postgresql.org
Sent: Thursday, June 22, 2006 3:06 AM
Subject: [pgadmin-support] How to find out hierchy of employee?


Hai,
I have proper knowledge in Oracle 9i as wel as PostgreSQL.
I have written a query in Oracle-SQL like the following...

select level,substr(lpad(' ',level*2)||ename,1,20) name from emp
start with ename='KING'
connect by prior empno=MGR;
/
LEVEL NAME
---------- -----------
1 KING
2 JONES
3 SCOTT
4 ADAMS
3 FORD
4 SMITH
2 BLAKE
3 ALLEN
3 WARD
3 MARTIN

Now, i need same result in PostgreSQL.Is there any possiblity to find out the heirchy of employees?



Thanks & Regards

Vivekananda.R | Software Engineer

Infinite Computer Solutions | Exciting Times.Infinite Possibilities...

SEI-CMMI level 5 | ISO 9001:2000

Tel +91-80-5193-0000| Fax +91-80-51930009 | Cell No +91-9986463365|www.infics.com


Information transmitted by this e-mail is proprietary to Infinite Computer Solutions and / or its Customers and is intended for use only by the individual or the entity to which it is addressed, and may contain information that is privileged, confidential or exempt from disclosure under applicable law. If you are not the intended recipient or it appears that this mail has been forwarded to you without proper authority, you are notified that any use or dissemination of this information in any manner is strictly prohibited. In such cases, please notify us immediately at info.in@infics.com and delete this email from your records.


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