Answer / sukanta

Lookup-

Let suppose you have empno in your source table but the
empno,address,name etc are stored in a lookup table and you
want all detail of employee will be go to target,then look
up is better option.

Lookup is passive transformation and support join on lookup
table basis of src.empno=lkp.empno(+).that means if in the
lookup table not have the source coming empno then it will
return null value for lookup empno.

so let suppose the lookup table is the target table in your
mapping,then you can find out the target table exists the
source record or not.

Joiner

If you want, the join condition satisfied,then the
satisfied all rows should go for next then join condition is
mandatory.Lookup can't do that.

Previous is posted by me.

Regards

Sukanta

Answer / guest

Lookup-

Let suppose you have empno in your source table but the
empno,address,name etc are stored in a lookup table and you
want all detail of employee will be go to target,then look
up is better option.

Lookup is passive transformation and support join on lookup
table basis of src.empno=lkp.empno(+).that means if in the
lookup table not have the source coming empno then it will
return null value for lookup empno.

so let suppose the lookup table is the target table in your
mapping,then you can find out the target table exists the
source record or not.

Joiner

If you want, the join condition satisfied,then the
satisfied all rows should go for next then join condition is
mandatory.Lookup can't do that.

i had a source containing business,sales,details column and i have to load it to a target but i have some bad records in it , but i have to load 70% of business records and 50% of sales and 95% of details records excluding bad records to achieve this what should be done and what all logic and tx should be used can anyone help? thanks in advance

0 Answers   CTS,

---

Differentiate between sessions and batches?

0 Answers  

---

rank() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid order by case when opt2.dm_market_flg in ('Y', 'U') then 1 else 2 end, lkp.contact_rank) as rank1, case opt2.contact_type when 'Buyer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, ship_to_flg desc , last_order_dt desc) when 'Decision Maker' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc , last_quote_dt desc , mailability_score desc , source_ranking desc) when 'Influencer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) when 'Payer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) --elu 05/28/2013 else row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) end rank2 row_number() over (partition by opt3.dim_plat_site_id, opt3.dim_site_opt_sid order by rank1,rank2) as "rank", case when "rank"<= opt3.maximum_value then 'Y' else 'N' end as include_flg

0 Answers  

---

I am hvaing SOURCE as 1000,null,null,null null,2000,null,null null,null,3000,null null,null,null,4000 Now i want the OUTPUT as 1000,2000,3000,4000 For more clarification i want to elimate nulls and want in a single line. Please help me out

5 Answers   IBM,

---

Differentiate between source qualifier and filter transformation?

0 Answers  

---

---

Can we update a target table (without primarykey) by using update strategy transformation?

4 Answers   TCS,

---

What is an aggregator transformation?

0 Answers  

---

In development project what is the process to follow for an etl developer from day1

0 Answers  

---

Converting Rows to columns I have Relational source like his. JAN FEB MAR APR 100 200 300 400 500 600 700 800 900 100 200 300 I need to convert these rows into columns to the targe. MONTH TOTAL JAN 1500 FEB 900 MAR 1200 APR 1500 Please experts help me

8 Answers   HP,

---

we have 20 records in source system, when we run for the 1st time, it should load only 10 records into the target, when you run for the second time it should load another 10 record which are not loaded. How do we do that? Can we write a SQL query in source qualifier to do it. This q' is asked in one f the interviews. Please let me know if anyone knows. Thanks

3 Answers   TCS,

---

write a query to retrieve the latest records from the table sorted by version(scd)

0 Answers   Informatica,

---

What is a taget load order?

2 Answers   IBM,

---