Check flat file column list and column types

Question

Hi guys!
Is there any "easy" way to check if the source flat file column names and column types correspond to target datastore column name and types ?
Regards,
PsmakR

Answer 1

Hi,
There is a way that I already used some time to validate if the data is the one expected into target.
Conditions:
1) The file source must have all columns as "String"
2) All mapping for the analysed columns must be done at "staging area"
How I do it: (oracle way)
1) create a database function (by ODI procedure) like:
create or replace function F$_DATATYPE (pData in varchar2, pDatatype in varchar2, pFormat in varchar2)
return varchar2 as
vDate date;
vNumber number;
BEGIN
if pDatatype = 'D' then /* Date */
vDate := to_date(pData, pFormat);
elsif pDatatype = 'N' then /* Number */
if pFormat is null then
vNumber := to_number(pData);
else
vNumber := to_number(pData, pFormat);
end if;
end if;
return 'OK';
EXCEPTION
When OTHERS then
return 'KO';
end F$_DATATYPE ;
3) Now you can create a constraint to each source column that you wish to validate data like:
'OK' = F$_DATATYPE(my_source_column, 'D', 'ddmmyyyy hh24:mi:ss' ) /* to a date column as example */
4) drag and drop the source datasource (table from model) into package and a E$ table with all errors will be created.
Does it help you?