Hi,
I want to change date type char value integer value?
I tried alter table tab_name modify (newcolumn
newdatetype). But The columns have 10 million values(char
type) so I want to load now numeric data. How it is possible?
Old Values New Value(I want to load numeric data but
the old value should be there in the column)
Y 1
N 0
ERROR at line 1:
ORA-01439: column to be modified must be empty to change
datatype
Please help on this.
Thanks,
GM
- 1 Answers
- 3453 Views
- IBM, I also Faced
- E-Mail Answers
Answer / vas.chiky
take one copy of master table as table_copy.
add a new column say "numeric" to the existing master table.
truncate the master table.
In informatica designer,
1.table_copy as source and master table as target.
2.have one expression trasformation. add one field numeric
(integer datatype).
expression coundition: iff (old_value = 'Y',1,0)
provide the connections.
create new workflow and start. The data will be loaded to
| Is This Answer Correct ? | 4 Yes | 0 No |
how can i invoke pmcmd in command line prompt
Generally how many Fact Tables and Dimensions Table you have used in the Project? Which one is loaded first Fact Table or Dimensions Table into the warehouse? What is the size of the Fact Table and Dimension Table? what is the size of the table and warehouse
wt is the difference between truncate and delete in which situation u use delete and truncate in real time..
What is a command that used to run a batch?
what is the flat file partition and where have to specify it
How will you combine 3 different sources with a single source?
Want to know about Training Centres for Informatica, Cognos and ETL Softwares in Mumbai, India.
Why do we use DSS database for OLAP tools?
difference between informatica 8.6 and 9
3 Answers Atos Origin, BA Continnum Solutions, Core Logic,
how lookup transformation is made active in new versions... When to use connected and when to use unconnected lookup and why? which is good for session performance. How to make lookup persistent and how to remove stale data from that lookup. how commit works - when we stop or abort data. Explain in both cases. What is factless fact table and have you ever used it in real time scenarios.
what are challenges that you faced in testing? give solution to it?
Explain the types of lookup transformation?
Teradata 
