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sequence number using bteq

sequence number using bteq

sequence number using bteq

(OP)
Can you generate a sequence number using bteq?  I know you can with other databases such as oracle.

RE: sequence number using bteq

I'm not sure if this is what you are refering to but you can create an incrementing column in Teradata SQL if you are running V2R3 or higher.

This is possible using the CSUM function:-

Select '1' as sequence
      ,CSUM(sequence,??column??)
From Target_table
group by 1
;

??column?? can be practically any column from the target table.

If you use this SQL as a derived table you can then drop the
'sequence' column and use the CSUM column as your sequence number.

RE: sequence number using bteq

Each bteq logon establishes a unique session number from that logicalhostid, ie. MVS, ntwk, whatever, which can be tracked in DBC.logonoff, PMON and other means.  I don't know that this is what you meant, but I thought I would offer it.       Keith

RE: sequence number using bteq

Can you generate a substring 'YYYYMM'using bteq?  

like :

SUBSTRING ( EXTRACT ( YEAR from DATE) || EXTRACT ( MONTH from DATE 1 for 6 )

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