flags to suppress column output, # of rows selected in db2 sql in UNIX
Hello,
I am new to db2 SQL in unix so bear with me while I try to explain the situation. I have a text file that has the contents of the where condition that I am using for a db2 SQL in UNIX ksh.
Here is the snippet.
Code:
if [ -s /entH/temp/VALUE$$.out ];
then
echo "Begin processing VALUEs"
db2 connect to testdb2 user username using passwd
while read line
do
echo "Processing VALUE $line"
snrf=$(echo $line | awk -F "." '{print $1}')
db2 "select document_name, document_type, timestamp_date, loc_code, box_number_from from edv.evctr1 where transaction_id = ${VALUE}" >> /entH/temp/${VALUE}_control_data.$$
echo "EOF1" >> /entH/temp/${VALUE}_control_data.$$
db2 "select comments from edv.evcmt1 where transaction_id = ${VALUE}" >> /entH/temp/${VALUE}_control_data.$$
done < /entH/temp/VALUE$$.out
fi
When executed I get several output files for each record selected from the two tables. The general content of each of the output files include the following
The question: Is there any flags that can be set while using db2 sql commands from a script to suppress printing of the column names, number of records returned, fix the size of the output records written to the flat files and be able to set inidividual column size of for each column specified in the sql statement?
For instance in oracle you can use something like, set heading off, set feedback off, set linesize 200, COL column_name format format_specifier etc.
If there are flags that can be set, how can I incorporate it in a shell script or is there a ini file that needs to be used?
Any help provided is greatly appreciated. Many thanks.
Jerardfjay
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Discussion started by: Perlbaby
3 Replies
LEARN ABOUT REDHAT
mktemp
MKTEMP(1) BSD General Commands Manual MKTEMP(1)NAME
mktemp -- make temporary file name (unique)
SYNOPSIS
mktemp [-d] [-q] [-u] template
DESCRIPTION
The mktemp utility takes the given file name template and overwrites a portion of it to create a file name. This file name is unique and
suitable for use by the application. The template may be any file name with at least 6 of 'Xs' appended to it, for example /tmp/temp.XXXXXX.
The trailing 'Xs' are replaced with the current process number and/or a unique letter combination. The number of unique file names mktemp
can return depends on the number of 'Xs' provided; six 'Xs' will result in mktemp testing roughly 26 ** 6 combinations.
If mktemp can successfully generate a unique file name, the file is created with mode 0600 (unless the -u flag is given) and the filename is
printed to standard output.
OPTIONS
The available options are as follows:
-d Make a directory instead of a file.
-q Fail silently if an error occurs. This is useful if a script does not want error output to go to standard error.
-u Operate in ``unsafe'' mode. The temp file will be unlinked before mktemp exits. This is slightly better than mktemp(3) but still
introduces a race condition. Use of this option is not encouraged.
RETURN VALUES
The mktemp utility exits with a value of 0 on success, and 1 on failure.
EXAMPLES
The following sh(1) fragment illustrates a simple use of mktemp where the script should quit if it cannot get a safe temporary file.
TMPFILE=`mktemp /tmp/$0.XXXXXX` || exit 1
echo "program output" >> $TMPFILE
In this case, we want the script to catch the error itself.
TMPFILE=`mktemp -q /tmp/$0.XXXXXX`
if [ $? -ne 0 ]; then
echo "$0: Can't create temp file, exiting..."
exit 1
fi
Note that one can also check to see that $TMPFILE is zero length instead of checking $?. This would allow the check to be done later one in
the script (since $? would get clobbered by the next shell command).
SEE ALSO mkstemp(3), mktemp(3)HISTORY
The mktemp utility appeared in OpenBSD.
BSD November, 20, 1996 BSD
10-27-2005
