Looking for a best query for multiple IF Else statement in a single select

Question

Hi
I want to run multiple IF Else statements in a single select SQL, each statement is one SQL operating on the same table, what is the best way to write this select SQL query ?
If it is PL/SQL, when i get the result from the first IF statement I will skip the remaining execution, and so on... Can any one help me on this.
Thanks in advance !!

Answer 1

965818 wrote:
I Apologize, the information i have given might not be enough.
This is my scenario,
I am selecting set of rows from the table for the employee id. After selecting those records,
i need to go through the result list and check the condition 1, if it is met, i will return that employee record.
If that condition 1 is not met, then i need to go through the condition 2. If that is met, i will return that record.
Like wise, i have four conditions.
I am trying to achieve this in a single sql. If i am not clear, please let me know.Not fully clear yet, but the picture is better already. The thing with SQL is that you should stop thinking procedurally. Instead think in data sets.
For example if the task is:
Find all managers that work in sales.
Procedural thinking would work like this:
pseudo code
Loop over all employees that work in sales
   for each row
       check if it is a manager
           if manager
              then return record
           else
              do nothing
           end
end loopThinking in datasets will result in a different logic
pseudo code
select all employees
where department = SALES
and job = MANAGERThis advantage here is that all the "Do nothing" loops are not needed. Those are already eliminated by the database.
So what is needed to help you? Give the full picture. What is your task that you try to solve. From a business perspective.