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Full Discussion: Sqlplus variable UNIX
Top Forums UNIX for Beginners Questions & Answers Sqlplus variable UNIX Post 303004855 by cero on Tuesday 10th of October 2017 07:52:14 AM
Old 10-10-2017
For a task like that the file descriptors shouldn't be a problem.
I do not see why a heredoc is needed, sqlplus can process a sql-commandfile if told so:
Code:
$ a=$(sqlplus -s /nolog @a.sql)
$ echo "$a"

10-OCT-17
$ cat a.sql
set heading off
connect / as sysdba;
select sysdate from dual;
exit

Using bash on Debian 9, Oracle XE.
 

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LEARN ABOUT DEBIAN

isql

isql(1) 							UnixODBC Reference							   isql(1)

NAME

       isql - utility to submit SQL queries to a data source.
       iusql - Unicode version of isql.

SYNOPSIS

       isql DSN [UID [PWD]] [options]

DESCRIPTION

       isql can be used to submit SQL to a data source and to format/output results.  It can be used in batch or interactive mode.

OPTIONS

       DSN    Name of the data source you want to connect to.

       UID    Your login to connect the DSN.

       PWD    Your password needed to login to the DSN.

       -b     Batch mode.  It will not do any prompting.

       -dx    Delimit columns with x.

       -x0xXX Delimit columns with XX, where XX is in hex.  For example -x0x09 will use a tab.

       -w     Wrap results in an HTML table

       -c     Print column names on first row.	This options only has effect in combination with the -d option.

       -mn    Limit column display width to n

       -v     Verbose output.

       --version
	      This prints the version.

EXAMPLES

       cat My.sql | isql WebDB MyID MyPWD -w
	      Each line in My.sql must contain exactly 1 SQL command except for the last line which must be blank.

AUTHOR

       This manual page was written by Kurt Roeckx <kurt@roeckx.be> for the Debian package of unixODBC.

UnixODBC							     Dec 2004								   isql(1)
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