To explain pls refer to this for DB2
http://www-01.ibm.com/support/knowledgecenter/SSEPGG_9.7.0/com.ibm.db2.luw.apdv.cli.doc/doc/r0002329.html
Essentially in one single sql call, we can do
-- Add new rows
-- Update a set of rows where each row is identified by a bookmark
-- Delete a set of rows where each row is identified by a bookmark
-- Fetch a set of rows where each row is identified by a bookmark
This gives tremendous performance benefits as the network round trip is
avoided for each sql.
I am looking for an equivalent of this in PG and C language.
Thanks.
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