sql-server - tiny_tds 在第二次执行时失败

Question

今天，tiny_tds 突然不接受多个execute 并返回:

C:\>ruby test_use.rb
one
two
C:/test_use.rb:15:in `execute': Attempt to initiate a new Adaptive Server operation with results pending (TinyTds::Error)
    from C:/test_use.rb:15

代码就是三个USE:

require 'rubygems'
require 'yaml'
require 'fastercsv'
require 'tiny_tds'
require 'iconv'

CONFIG = YAML.load_file("config.yml")

client = TinyTds::Client.new(:username => CONFIG["db"]["username"], :password => CONFIG["db"]["password"], 
  :host => CONFIG["db"]["server"], :database => CONFIG["db"]["database"])

puts "one"
client.execute("USE DATAFEED")
puts "two"
client.execute("USE DATAFEED")
puts "three"
client.execute("USE DATAFEED")

有什么问题吗？我已经尝试重新启动 Windows 机器。

Answer 1

这是我如何做的一个例子。

results = $regcenter_db.execute("select top 10 * from events")
event_ids = results.collect { |i| i["event_id"] }
results.do