Using Ruby and SQL SMO for Script Automation - ruby

Question

I need to create a script in ruby to get all the database objects (tables,views,sps, functions, etc) and be able to create files for each of the db objects.
I would like to be able to implement this solution in ruby and use some sort of Win32 class may be?.
I am using SQL Server 2008 R2. Not ruby on rails of course.

Answer 1

# == Name
# SQL Server Library
# == Author
# Maverick
# == Synopsis
# ADO SQL Server Library
# == Notes:
# Modify the following global variables in order to set up an execution environment
# sql_str: This is the SQL CMD command option and arguments -> Change the -U and -P arguments for -E to enable integrated security
# http://rubyonwindows.blogspot.com/2007/03/ruby-ado-and-sqlserver.html
Thread.abort_on_exception = true
require 'win32ole'
require 'win32api'
CoInitialize = Win32API.new('ole32', 'CoInitialize', 'P', 'L')
# This class manages database connection and queries
class SqlServer
attr_accessor :connection, :data, :fields
def initialize
#connection = nil
#data = nil
#cmd_time_out = 900
end
#opens a database connection using integrated security
def open(server,database)
connection_string = "Provider=SQLOLEDB.1;"
connection_string << "Persist Security Info=False;"
connection_string << "Integrated Security=SSPI;"
connection_string << "Initial Catalog=#{database};"
connection_string << "Data Source=#{server};"
connection_string << "Network Library=dbmssocn"
CoInitialize.call( 0 )
if server.eql?(nil) or database.eql?(nil) or server.eql?('') or database.eql?('') then
raise Exception, "Application Error: Server or Database parameters are missing"
end
begin
#connection = WIN32OLE.new('ADODB.Connection')
#connection.ConnectionString = connection_string
#connection.open
rescue Exception => e
#connection.Errors.Count.times { |x|
show_ado_error(#connection.Errors)
}
raise Exception, "Application Error: #{e.message} \n Can't open a connection with the server. Verify user credentials"
end
end
def get_connection
return #connection
end
#executes a query without returning any rows
def execute_non_query(query)
begin
command = WIN32OLE.new('ADODB.Command')
command.CommandType = 1
command.ActiveConnection = #connection
command.CommandText = query
command.CommandTimeOut = #cmd_time_out
result = command.Execute
if #connection.Errors.Count > 1 then
raise Exception,"ADODB Connection contains errors"
end
rescue Exception => e
show_ado_error(#connection.Errors)
raise Exception, "Application Error: #{e.message} \n Can't execute query. Verify sql syntax"
end
return result
end
#prints ado db errors using ado connection error property
def show_ado_error(obj)
obj.Count.times { |x|
puts "#{x}. ADODB Error Number: " + #connection.Errors(x).Number.to_s
puts "#{x}. ADODB Generated By: " + #connection.Errors(x).Source
puts "#{x}. ADODB SQL State: " + #connection.Errors(x).SQLState
puts "#{x}. ADODB Native Error: " + #connection.Errors(x).NativeError.to_s
puts "#{x}. ADODB Description: " + #connection.Errors(x).Description
}
end
#executes a query returning an array of rows
def execute_query(sql_query)
# Create an instance of an ADO Record set
begin
record_set = WIN32OLE.new('ADODB.Recordset')
# Open the record set, using an SQL statement and the
# existing ADO connection
record_set.open(sql_query, #connection)
# Create and populate an array of field names
#fields = []
record_set.fields.each do |field|
#fields << field.Name
end
begin
# Move to the first record/row, if any exist
record_set.movefirst
# Grab all records
#data = record_set.getrows
rescue
#data = []
end
record_set.close
# An ADO Recordset's GetRows method returns an array
# of columns, so we'll use the transpose method to
# convert it to an array of rows
#data = #data.transpose
rescue
raise Exception, "Application Error: Can't execute query. Verify SQL Query syntax"
end
end
def close
#connection.Close
end
end