Answer / subhash

we can delete in 2 ways:
1) in TGT Oracle Stage,
select 'Write Mode' as 'DELETE'
and write the delete Query as
"DELETE FROM EMP_TGT
WHERE EID IN (SELECT EID FROM EMP_SRC)"

2)Select 'Write Mode' as 'UPDATE' and write some dummy update query(This statement will not execute as WHERE condition 1=2) as
"UPDATE EMP SER EID='1111' WHERE 1=2"
then write delete query in 'Run before SQL statemets' as
"DELETE FROM EMP_TGT
WHERE EID IN (SELECT EID FROM EMP_SRC)"

Answer / vaibhav

We can perform inner join between seq file & oracle stage and then in target oracle stage have write method as Delete where we can specify delete query using orchestrate incoming rows..

Answer / vinod upputuri

Simple job:

SEQ>>>ORACLE_STAGE.

in ORCL_STAGE: SPECIFY WRITE METHOD: DELETE ROWS

specify the matching column as key column in column definition.

Answer / shar

Vaibhav can u plz explain how an sql query is written b/t
seq file and oralce table in oracle stage delete query?

Answer / shilpasagarg

1)The approach is to load the seq file data into one
temporary table say EMP_TEMP. (SEQ -> ODBC Stage (Oracle
(EMP_TEMP table)
EMP_TEMP contains
eid
1
2
"
"
10

2)Then take the ODBC Stage to connect to Oracle DB (EMP
table).
EMP table contains
eid
1
2
"
"
100

Here use the below query to delete the matched EID's
permanantly from oracle DB

DELETE EMP
FROM EMP
INNER JOIN EMP_TEMP
ON EMP.EID=EMP_TEMP.EID

Which is the best institute in Hyderabad to learn OBIEE and DataStage?Please tell me faculty name also

0 Answers  

What are the job parameters?

0 Answers  

What r the existing server jobs in parallalism?

0 Answers   ITC Infotech,

in datastage interview qustion source target ------- ------- 12345 1 2 3 4 5

3 Answers   IBM, YCS,

Can we use target hash file as a lookup ?

0 Answers  

What is the Difference Between DataStage 7.5 version and 8.1 Version?

10 Answers   IBM,

I am getting input value like X = Iconv(“31 DEC 1967”,”D”)? What is the X value? How it is? At what situation we r used Iconv(),Oconv().

1 Answers   Amdocs, TCS,

1. How many People are part of your Team? 2. Explain how you create jobs or flow of project? 3. Join Stage vs Lookup vs Merge Stage 4. Summation scenario based question - How you find sum of salary for a specific employee (Explain stages and flow of job)? 5. Explain Remove duplicates stage ? Can you do sort in this stage? 6. SQL Questions - Joins - Types, Difference between Join and Union 7. Unix Questions - How you run the Job, How you list all jobs in project 8. Explain Environmental Variables? 9. SQL Scenario - If you have 3 Identical record in a Table, Ex: 1, Ram, Xyz; 1, Ram, Xyz; 1, Ram, Xyz; Delete only 2 of the records and keep only 1 using the Delete query. How you will you do this?

1 Answers  

1.what is stagearea?what is stage variable? 2.this is my source source:id, name target:id, name 100, murty 100,madan we have three duplicate records for the id column,how can we getthe source record? 100,madan 100,saran

1 Answers   HCL,

How will you move hashed file from one location to another location?

0 Answers   NTT Data,

3) Sequential file contains data like Empno ename sal 111 abc 2000 Trgt file: Trgt1----111 Trgt2----abc Trgt3---2000

2 Answers  

Define oconv () and iconv () functions in datastage?

0 Answers