pg 0.15.1
Pg is the Ruby interface to the {PostgreSQL RDBMS}[http://www.postgresql.org/]. It works with {PostgreSQL 8.4 and later}[http://www.postgresql.org/support/versioning/]. A small example usage: #!/usr/bin/env ruby require 'pg' # Output a table of current connections to the DB conn = PG.connect( dbname: 'sales' ) conn.exec( "SELECT * FROM pg_stat_activity" ) do |result| puts " PID | User | Query" result.each do |row| puts " %7d | %-16s | %s " % row.values_at('procpid', 'usename', 'current_query') end end
          Gemfile:
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          安装:
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      Development 依赖 (6):
            hoe
            ~> 3.5
          
          
            hoe-deveiate
            ~> 0.2
          
          
            hoe-highline
            ~> 0.1.0
          
          
            hoe-mercurial
            ~> 1.4.0
          
          
            rake-compiler
            ~> 0.8
          
          
            rdoc
            ~> 3.10