Module: MonetDB::Connection::Query

Included in:
MonetDB::Connection
Defined in:
lib/monetdb/connection/query.rb,
lib/monetdb/connection/query/table.rb

Defined Under Namespace

Modules: Table

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/monetdb/connection/query.rb', line 7

def self.included(base)
  base.send :include, Table
end

Instance Method Details

#query(statement) ⇒ Object Also known as: select_rows

Raises:



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# File 'lib/monetdb/connection/query.rb', line 11

def query(statement)
  check_connectivity!
  raise ConnectionError, "Not connected to server" unless connected?

  start = Time.now

  write "s#{statement};"
  response = read.split("\n")

  log :info, "\n  SQL (#{((Time.now - start) * 1000).round(1)}ms)  #{statement}"
  parse_response response
end

#select_value(query) ⇒ Object 



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# File 'lib/monetdb/connection/query.rb', line 30

def select_value(query)
  row = select_rows(query)[0]
  row[0] if row
end

#select_values(query) ⇒ Object 



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# File 'lib/monetdb/connection/query.rb', line 26

def select_values(query)
  select_rows(query).collect{|x| x[0]}
end