sql - Converting a Date Format to YYYYMM in Cognos Report Studio -

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i have date column in format 12 may, 2014 want convert yyyymm/ 201405 format. tried multiple options 

extract(year, sys_date)*100 + extract(month, sys_date))*100 cast(extract( year, sys_date), varchar(4)) + cast(extract( month, sys_date), varchar(2))

this 1 works returns me in yyy,ymm format. 

cast(to_char(sys_date, 'yyyymm'), int )

for above two, gives error:

 error occurred while performing operation 'sqlopenresult' status='-28'

can 1 please guide. thank in advance.

i got looking for. did:

translate(cast(to_char(sys_date, 'yyyymm'), varchar(6) ), ',' , ' ')

i sure there better way result use sql gives me want :)


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