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Top Forums UNIX for Dummies Questions & Answers Assign SQL result in shell variable Post 302577007 by matt01 on Monday 28th of November 2011 02:00:23 AM
Old 11-28-2011
Java Assign SQL result in shell variable

Hi

im trying to assign the result of the db2 command to a variable inside a shell script...
: tab_cnt=`db2 "select count(*) from syscat.tables where tabname = 'ABC' and tabschema = 'MATT01'" |head -4|tail +4|cut -c 11`

: echo $tab_cnt

when i echo im getting a blank value.. im expecting value 0...

if i try the same command outside the script
: db2 "select count(*) from syscat.tables where tabname = 'ABC' and tabschema = 'MATT01'" |head -4|tail +4|cut -c 11
: 0 (i get 0... expectd)

I found that if i remove the " |head -4|tail +4|cut -c 11" from the db2 command im getting an output of
tab_cnt=
1
-----------
0

1 record(s) selected.


can smbdy explain why is this happening ..n what can be done for getting the query results in a variable...


thanks in advance...
 

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OCF_HEARTBEAT_DB2(7)						OCF resource agents					      OCF_HEARTBEAT_DB2(7)

NAME
ocf_heartbeat_db2 - Manages an IBM DB2 Universal Database instance SYNOPSIS
db2 [start | stop | status | monitor | validate-all | meta-data | methods] DESCRIPTION
Resource script for db2. It manages a DB2 Universal Database instance as an HA resource. SUPPORTED PARAMETERS
instance The instance of database. (required, string, no default) admin The admin user of the instance. (optional, string, no default) SUPPORTED ACTIONS
This resource agent supports the following actions (operations): start Starts the resource. Suggested minimum timeout: 120. stop Stops the resource. Suggested minimum timeout: 120. status Performs a status check. Suggested minimum timeout: 60. monitor Performs a detailed status check. Suggested minimum timeout: 60. Suggested interval: 10. validate-all Performs a validation of the resource configuration. Suggested minimum timeout: 5. meta-data Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5. methods Suggested minimum timeout: 5. EXAMPLE
The following is an example configuration for a db2 resource using the crm(8) shell: primitive example_db2 ocf:heartbeat:db2 params instance=string op monitor depth="0" timeout="60" interval="10" SEE ALSO
http://www.linux-ha.org/wiki/db2_(resource_agent) AUTHOR
Linux-HA contributors (see the resource agent source for information about individual authors) resource-agents 1.0.3 07/05/2010 OCF_HEARTBEAT_DB2(7)
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