Write pipe delimited column names in teradata

Question

I am using the below query to produce a pipe delimited file but I also want pipe delimited column name. Can you please help me with that.

select  cast (sample_dt||'|'||trim(trailing '.' from trim(leading ' ' from acct_id))||'|'||name1||'|'||ent_sub_lob||'|'||app_dt||'|'||home_phn_num||'|'||city_1_name||'|'||geo_st_cd||'|'||surveyid||'|'||study_type||'|'||ent_lob||'|'||channel||'|'||market_C||'|'||merchant_id as char(300))
from  ud.testing;

Answer 1

If i understand you correctly, you either need a table column name or your current derived column ie cast (sample_dt||'|'||trim(trailing '.' from..... name as | separated. In both cases, you just need double quotes "" around column name as below.

In Create Table:

create TABLE t1(
"x1 | y1" char(300)
);

You can check created table definition with show command.

show TABLE t1;

CREATE SET TABLE t1 ,NO FALLBACK ,
     NO BEFORE JOURNAL,
     NO AFTER JOURNAL,
     CHECKSUM = DEFAULT,
     DEFAULT MERGEBLOCKRATIO
     (
      "x1 | y1" CHAR(300) CHARACTER SET LATIN NOT CASESPECIFIC)
PRIMARY INDEX ( "x1 | y1" );

In derived column:

SELECT 'abc'||' | '|| 'zyc' as "Test | ABC";

Test | ABC
----------
abc | zyc

You current query will become.

SELECT CAST (sample_dt||'|'||trim(TRAILING '.'
                                  FROM trim(LEADING ' '
                                            FROM acct_id))||'|'||name1||'|'||ent_sub_lob||'|'||app_dt||'|'||home_phn_num||'|'||city_1_name||'|'||geo_st_cd||'|'||surveyid||'|'||study_type||'|'||ent_lob||'|'||channel||'|'||market_C||'|'||merchant_id AS char(300)) AS "Pipe | Seperated"
FROM ud.testing;

Hope it will help :-)