How to conditionally write query ?

i have one use case -
on the basis of enter value i need to execute query .
for example
select * from employees em where em. empId=? and em.firstname=? and em.jobid=?
select * from employees em where em. empId=? and em.firstname=?
i need to the write one query which is internally used this both condition and return the records
select * from employees em where
if(em.jobid==null)
select * from employees em where em. empId=? and em.firstname=?
else
select * from employees em where em. empId=? and em.firstname=? and em.jobid=?
how could i write this problem in sql ?

Note the name of this forum is "SQL Developer *(Not for general SQL/PLSQL questions)*" - so only for issues with the SQL Developer tool. Please post these questions under the dedicated SQL And PL/SQL forum.
Regards,
K.

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Could someone help me out here?
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If a table can belong to many synonyms and a synonym can belong to many tables how would one write a query where I would like to know which tables belong to each synonym or on the other hand which synonym belongs to what tables?
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Actually, the relationship is not many to many. A table can have many synonyms, but a synonym within a namespace (i.e. a PUBLIC synonym, or a private synonym created by a user) can only point to one table. The xxx_synonmys tables already contain the information about the table_name and table_owner.
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How many conditions and exceptions can be defined in a query?

hi,
Can any one tell
How many conditions and exceptions can be defined in a query?
i.e
How many condtion can be defineon an keyf igure with respective to charecteristics?
Because if we define more conditions on one keyfigure with respective to different chars,there might be some overlap among the conditons andconditions might not work.
Am i coorect?
Similary for the exceptions also.
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Hi Naresh,
In Query we can no limit for creating Condition & Exception
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Try below solution, it is NOT best solution but might work:
Declare @Questions TABLE (QuestionID INT, QuestionText Varchar(100))
INSERT INTO @Questions
VALUES (1, 'Comment'), (2, 'Score')
DECLARE @Answers TABLE (authkey INT, QuestionID INT, questiontext VARCHAR(100), answertext VARCHAR(100))
INSERT INTO @Answers
VALUES (101, 1, 'comment', 'hi!!'), (101, 2, 'score', '4'), (102, 1, 'comment', 'excellent'), (102, 2, 'score', '5'), (103, 2, 'score', '6'), (104, 2, 'score', '8')
SELECT
A.AuthKey
,Q.QuestionID
,Q.QuestionText
,A.AnswerText
FROM
@Questions Q
INNER JOIN @Answers A ON Q.QuestionID = A.QuestionID
UNION
SELECT
A.AuthKey
,Q.QuestionID
,Q.QuestionText
,Null
FROM
@Questions Q
CROSS JOIN @Answers A
WHERE
NOT EXISTS (SELECT 1 FROM @Answers SubQry WHERE SubQry.AuthKey = A.AuthKey AND SubQry.QuestionID = Q.QuestionID)
Output
AuthKey | QuestionID
| QuestionText
| AnswerText
101 | 1 | Comment | hi!!
101 | 2 | Score | 4
102 | 1 | Comment | excellent
102 | 2 | Score | 5
103 | 1 | Comment | NULL
103 | 2 | Score | 6
104 | 1 | Comment | NULL
104 | 2 | Score | 8
Best Wishes, Arbi; Please vote if you find this posting was helpful or Mark it as answered.

How would I write this query

[USERNAME]
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Try this
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('User2','New Member'),
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401
402
403
404
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Spent one full day for this................

Thanks Don for the reply,sorry to bug you,but i need help.....
SELECT A.AGNCY_C,
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AND A.EFF_D >= B.MATURITY_D
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Gurus,
Please clarify this
Select ils.item,(nvl(sum(decode(tdh.loc_type,'S',decode(tdh.tran_code, 1,tdh.units,0),
'W',decode(tdh.tran_code,30,0,31,0,32, tdh.units,33, tdh.units,37,0,38, tdh.units,20,0,1,0))),0))"result"
from tran_data_history tdh, item_loc_soh ils
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between (*select first_date from (select item,min(trunc(first_received)) first_date From Item_loc_soh*
where item in('100002513','100002484') and first_received is not null
group by item ))
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Regards

Inner query
Select First_Date From (Select Item, Min(Trunc(First_Received)) First_Date
                                    From Item_Loc_Soh *
                                    Where Item In ('100002513', '100002484')
                                    And First_Received Is Not Null
                                    Group By Item)
this will return 2 rows for each of the item id 2513 and 2484 because you write query for this 2 rows
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which means
item id 2513 min date
item id 2482 min date
if you want to compare just a date to sysdate then do it directly,
Select Ils.Item,
       (Nvl(Sum(Decode(Tdh.Loc_Type,
                       'S',
                       Decode(Tdh.Tran_Code, 1, Tdh.Units, 0),
                       'W',
                       Decode(Tdh.Tran_Code,
                              30,
                              0,
                              31,
                              0,
                              32,
                              Tdh.Units,
                              33,
                              Tdh.Units,
                              37,
                              0,
                              38,
                              Tdh.Units,
                              20,
                              0,
                              1,
                              0))),
            0)) "result"
From Tran_Data_History Tdh, Item_Loc_Soh Ils
Where Tdh.Item = Ils.Item
   And Ils.Item In ('100002513', '100002484')
   And Trunc(First_Received) = Sysdate;
however i dont understand importance of Tdh.Tran_Date and which date you exactly want to compare
hope this helps,
if not plz clarify more on the questionsEdited by: Nicloei W on Sep 24, 2008 11:51 PM

How to conditionally write query ?

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