Need to get select result into a shell variable.

Question

Hi,
I want to get below command output into a OS variable. Which will be used later in the shell script. Can you please advice how to go about it?
VAR v_tool_execution_id NUMBER;
EXEC :v_tool_execution_id := trcanlzr.trca$p.get_tool_execution_id;
SELECT TO_CHAR(:v_tool_execution_id) tool_execution_id FROM DUAL;
I can't do following
VAR1=`sqlplus -s $unpwd <<EOF
VAR v_tool_execution_id NUMBER;
EXEC :v_tool_execution_id := trcanlzr.trca$p.get_tool_execution_id;
SELECT TO_CHAR(:v_tool_execution_id) tool_execution_id FROM DUAL;
EOF`
Since tool execution is specific to session and exiting will not server my purpose since i need to run another command which generates a file name using tool execution id.
Thanks for your time.
Regards,
Nagendra Chillale

Answer 1

Actually the idea is the same. Instead of getting the variable into a shell script, call the shell script which use the variable from sqlplus. I attempted to include the line to call a shell script but had a mistake :P
The last line should be
SQL> host /path/to/second/part.sh &exec_idAnother way is to spool the variable into a file, then read the file into a variable in your shell script. You need to use head / tail command to extract the desired row, because Oracle adds blank lines, headers, etc in its spool output
In your SQL script
SQL> spool tool_execution_id.txt
SQL> SELECT TO_CHAR(:v_tool_execution_id) tool_execution_id into :vtemp FROM DUAL;
SQL> spool offIn your shell script (the desired line appeared in the second last line in my case)
tool_execution_id=`tail -2 tool_execution_id.txt|head -1`
echo $tool_execution_idEdited by: thtsang on Mar 30, 2010 11:43 AM