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karthi_ind
Active User
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Joined: 24 Feb 2004
Posts: 131
Location: Chennai
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I have one table called Employee and detail would like below
EMP_TABLE
S.No Emp_Id EmP_Name Emp_Salary
1 123 John 100
5 123 Sunil 100
7 123 Raj 500
10 123 Joseph 101
When ever i do the update on the columns like Emp_Name or Emp_Salary a new record is inserted into the same table with new S.No
For Ex. Emp_Name "John" Changed to "Sunil" new record is inserted into the table with S.No"5".
Note:Emp_ID will remain same and it can't be changed/updated.
Now My requirement is "I should generate the report(using Cursors in SQL Stored procedure) for audit log" for the "employee_Id 123" The report should be like below
Changed Field Old Value New value
Employee Name John Sunil
Employee Name Sunil Raj
Employee Nmae Raj Joseph
Employee Salary 100 500
Employee Salary 500 101 |
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GuyC
Senior Member
Joined: 11 Aug 2009
Posts: 1281
Location: Belgium
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| well, good luck with that. It won't be easy. |
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sushanth bobby
Senior Member
Joined: 29 Jul 2008
Posts: 1020
Location: India
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Karthi,
You got to be kidding me !
| Quote: |
| a new record is inserted into the same table with new S.No |
Single table holding employee records & audit records as well. Did normalization went for a vacation or what ?
Sushanth |
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ashimer
Active Member
Joined: 13 Feb 2004
Posts: 551
Location: Bangalore
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| True - you should have been using another table for audit with a trigger on the base table. |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Hello,
I suspect this is the audit table. . . I may misunderstand, but i believe the requirement is to show all of the before/after values when there have been modifications.
Possibly Karthi will clarify. . . |
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karthi_ind
Active User
Joined: 24 Feb 2004
Posts: 131
Location: Chennai
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Hi all,
Thanks for your reply.
Basically what I want is the report kind of thing which tells about what are all the changes done in the table. Like empname has been changed to new name, salary has been changed to new one. This needs to be done using sql query in stored procedure.
Sushanth,
The table contains multiple records and I want only the changes done for name and salary. so I dont think normalization comes into picture on this.
Please clarify.
Thanks. |
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GuyC
Senior Member
Joined: 11 Aug 2009
Posts: 1281
Location: Belgium
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You could use this as starting point :
| Code: |
select old.id, old.no, old.name, old.sal, new.no,new.name, new.sal
from EMP_TABLE old
, EMP_TABLE new
where old.id = new.id
and ( old.Name = new.name
or old.sal = newt.Sal)
and new.no = (select min(no) from EMP_table nxt
where old.id = nxt.id
and nxt.no > old.no
) |
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GuyC
Senior Member
Joined: 11 Aug 2009
Posts: 1281
Location: Belgium
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in previous post, ofcourse it must be
(old.name <> new.name or old.sal <> new.sal) |
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