I have spooled a file to CSV using sqlplus. Everything works great but there is one issue. I have mobile numbers which start with 0, for example 04589 and 02586.

After the spooling is complete, 0s are truncated and the end results are 4589 and 2586.

I want the output to display in CSV as:

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    Not nearly enough information for a meaningful answer. What is the column data type? What does your query look like? When you view query results in SQL*Plus, how do the look? You're not opening the CSV file in Excel, are you? – mustaccio Jan 8 '19 at 16:27

It's not an Oracle issue. It's an Excel issue, unfortunately.
I've looked high and low for the answer myself with zero success. I have tried formatting the column in the spreadsheet, but at that point, the horse has left the barn so to speak.

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    In some circumstances Excel can be the issue when converting/opening CSV files, but without more information/details, it's hard to make that assumption. – John A Jan 8 '19 at 19:00
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    True. Opening the csv in a plain-text editor will yield the proper formatting. My personal experience shows that opening in MS Excel truncates the leading zero. – RAF Jan 8 '19 at 19:58
  • It's possible that writing the number out in double quotes (from Oracle to CSV) would make Excel load it as text. – RDFozz Jan 8 '19 at 21:58

String are written between "" in the CSV. So your datatype is not string type, or the tool you use for viewing the CSV automatically converts and trims it.

[oracle@o71 ~]$ sqlplus -S bp/bp
set markup csv on
set echo off
spool 1.csv
select '04589' as phone from dual
union all select '02586' from dual;


[oracle@o71 ~]$ cat 1.csv


[oracle@o71 ~]$

Simplest way to achieve this!!!

concatenate your coulumn which has leading zero with prefix CHR(28) and you are done.


spool file1.csv select numbercol from dual; select CHR(28)||numbercol from table; spool off;

CHR(28) is a invisible char representation of a ASCII value.

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