22 lines
569 B
Ruby
22 lines
569 B
Ruby
# -*- ruby -*-
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require 'pg'
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# An example of how to use SQL cursors. This is mostly a straight port of
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# the cursor portion of testlibpq.c from src/test/examples.
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$stderr.puts "Opening database connection ..."
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conn = PG.connect( :dbname => 'test' )
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#
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conn.transaction do
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conn.exec( "DECLARE myportal CURSOR FOR select * from pg_database" )
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res = conn.exec( "FETCH ALL IN myportal" )
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puts res.fields.collect {|fname| "%-15s" % [fname] }.join( '' )
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res.values.collect do |row|
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puts row.collect {|col| "%-15s" % [col] }.join( '' )
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end
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end
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