ORACLE检查字符是否为数字
select gid,gname from t_dw_fltelecomproduct_all
where regexp_like(substr(gid,1,1) ,'[0-9]')
group by gid,gname
-- 判断一个字符串是否为全数字
and translate(f_channel,'\1234567890','\') is null
select nvl2(translate('1224312321','\1234567890','\'),'is not number','is number') from dual;
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