Ruby 使用 ODBC 连接数据库
require "odbc"DSN= "Myodbc"
USER = "YourName"
PWD= "123"
ODBC.connect(DSN, USER, PWD) do |dbh|
dbh.autocommit = true
begin
dbh.do("DROP TABLE test")
rescue ODBC::Error; end
dbh.do("CREATE TABLE test (id INT, name VARCHAR(30))")
dbh.do("INSERT INTO test VALUES (?,?)", 1, 'Michael')
dbh.autocommit = false
dbh.prepare("INSERT INTO test VALUES(?,?)") do |sth|
name = "AAAAA"
99.times {|n| sth.execute(n+2, name.succ!) }
end
dbh.commit
dbh.run("SELECT COUNT(*) FROM test") do |sth|
p sth.fetch# => 100
end
sql = "SELECT name FROM test WHERE id BETWEEN ? AND ?"
sth = dbh.run(sql, 49, 50)
sth.ignorecase = true
sth.fetch_hash do |row|
p row['NAME'] # => "AAABW", "AAABX"
end
sth.drop
end
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