R语言通过ODBC连接Oracle数据库，sqlQuery时报错，

san <- sqlQuery(echo, 'select * from ifsapp&tbwJobTip')

san
[1] "HY000 933 [Oracle][ODBC][Ora]ORA-00933: SQL ÃüÁîδÕýÈ·½áÊø\n"

[2] "[RODBC] ERROR: Could not SQLExecDirect 'select * from ifsapp&tbwJobTip'"

ODBC数据源已配置成功，RODBC已加载，求教，谢谢