sybase - 如何 bcp 出几列而不是所有列？ (赛贝斯)

Question

如何从 Sybase (Adaptive Server Enterprise/15.7.0) 表中仅提取几列？以下是 Sybase bcp 帮助屏幕。它不接受 SQL 作为输入。我想 bcp 出许多表的唯一索引的所有列。或者有什么替代方法吗？

usage: bcp [[db_name.]owner.]table_name[:slice_num] [partition pname] {in | out}
 [filename]
        [-m maxerrors] [-f formatfile] [-e errfile] [-d discardfileprefix]
        [-F firstrow] [-L lastrow] [-b batchsize]
        [-n] [-c] [-t field_terminator] [-r row_terminator]
        [-U username] [-P password] [-I interfaces_file] [-S server]
        [-a display_charset] [-z language] [-v]
        [-i input_file] [-o output_file]
        [-A packet size] [-J client character set]
        [-T text or image size] [-E] [-g id_start_value] [-N] [-W] [-X]
        [-M LabelName LabelValue] [-labeled]
        [-K keytab_file] [-R remote_server_principal] [-C]
        [-V [security_options]] [-Z security_mechanism] [-Q] [-Y]
        [-y sybase directory] [-x trusted.txt_file]
        [--clienterr errfile] [--maxconn maximum_connections]
        [--show-fi] [--hide-vcc]
        [--colpasswd [[[db_name.[owner].]table_name.]column_name [password]]]
        [--keypasswd [[db_name.[owner].]key_name [password]]]
        [--initstring ASE initialization string] [--quoted-fname]

版本是 Adaptive Server Enterprise/15.7.0/EBF 20305 SMP ESD#01 Refresh#2/P/x86_64/Enterprise Linux//2927/64-bit/FBO/Fri Jun 22 09:38: 2012 年 01 月

Answer 1

如果您使用的是 15.5 之前的 Sybase ASE，那么最好的选择是 create views在与您希望提取的列相匹配的表上，然后您可以从这些 View 中bcp。

create view titles_view 
as select title, type, price, pubdate 
from titles

bcp mydatabase..titles_view out titles_view -Uusername -Sservername -n

如果您使用的是 SAP Sybase ASE 15.5 或更新版本，则可以使用 output 命令将 select 语句的结果输​​出到文件。

select *
from employee
go
output to employee.txt
format ASCII

output 的语法和选项可以在这里找到:Sybase ASE Reference Manual: Commands