osql 工具允许输入T_SQL语句，系统过程和文本文件，osql 用ODBC与服务器通信
The osql utility allows you to enter Transact-SQL statements, system procedures, and script files. This utility uses ODBC to communicate with the server.
语法：
osql
[-?] |
[-L] |
[
{
{-U login_id [-P password]}
| E }
[-S server_name[\instance_name]] [-H wksta_name] [-d db_name]
[-l time_out] [-t time_out] [-h headers]
[-s col_separator] [-w column_width] [-a packet_size]
[-e] [-I] [-D data_source_name]
[-c cmd_end] [-q "query"] [-Q "query"]
[-n] [-m error_level] [-r {0 | 1}]
[-i input_file] [-o output_file] [-p]
[-b] [-u] [-R] [-O]
]