Can i use alter command in script

type1=`sqlplus -s scott/tiger@home <<EOF1
spool file1.sql
alter table $v_tabname add(col1 number(10));
but select * from $v_tabname; is working in side the unix script
spool off;
EOF1`
alter table $v_tabname add(col1 number(10)); command is not working
in my unix script
please give your suggestions

This appears to be a *NIX script.  If so, the dollar sign is used to display the contents of the variable.  In your case, that would be $v_tabname.  Have you defined that variable in your script?  If so, does the table actually exist in the scott schema?
Other than that, can you define "not working".
John

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