我想在 select 语句中定义某些特定列的长度,并且想连接两列,sponsor id即sponsorSAS proc sql 中的“ABC-123”。请帮助这是代码
proc sql;
select
project_id,
sponsor_id,
empl_country,
region,
empl_dept_descr,
empl_bu_descr,
sponsor,
full_name,
mnth_name FROM Stage0;
quit;
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