How to solve this error: Error code "Undefined function 'select' for input arguments of type 'char'"?

I put my code as following:

>> select s_info_windcode 代码,trade_dt 日期,fs_info_membername 会员简称,

fs_info_type 类型,fs_info_positionsnum 持仓数量,fs_info_rank 名次

from CIndexFuturesPositions

where s_info_windcode like 'IF%'

AND trade_dt >'20140201' --参考日期

Here is the error:

Undefined function 'select' for input arguments of type 'char'. How to get rid of this?

Thanks

Answer 1

[David Young]

It looks as if you're typing SQL to the MATLAB prompt. You need to use an SQL interpreter, not MATLAB.