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Full Discussion: Shell Script to execute Oracle query taking input from a file to form query
Top Forums Shell Programming and Scripting Shell Script to execute Oracle query taking input from a file to form query Post 302572482 by felipe.vinturin on Thursday 10th of November 2011 05:56:16 AM
Old 11-10-2011
Depending on how much users you have, then Shell_Life's solution will be better, but here is one:
Code:
#!/bin/ksh
############################################################################
buildDBSearchStr ()
{
	inFile="${1}"
	
	if [ ! -f "${inFile}" -o ! -r "${inFile}" ]
	then
		echo "Input file: [${inFile}] does not exist or is not readable."
		exit 1
	fi
	
	numUsers=0
	unset dbSearchStr
	
	while read dbUserName
	do
		dbUserName="${dbUserName:-NULL}"
		
		[ "${dbUserName}" == "NULL" ] && continue
		
		if [ ${numUsers} -eq 0 ]
		then
			dbSearchStr="'${dbUserName}'"
		else
			dbSearchStr="${dbSearchStr},'${dbUserName}'"
		fi
		numUsers=`expr ${numUsers} + 1`
	done < "${inFile}"

	if [ ${numUsers} -eq 0 ]
	then
		echo "No users added."
		exit 1
	fi
	
	echo "DB Search string: [${dbSearchStr}]"
}
############################################################################

############################################################################
# Main
############################################################################
if [ $# -ne 1 ]
then
	echo "Arguments required: [1] - [Users Input File]."
	exit 1
fi

dbOutputFile="./dbUsersData.txt"
dbLogFile="./dbUsersData.log"

buildDBSearchStr "${1}"

searchDBQuery="SELECT CITY FROM TableA WHERE USER IN (${dbSearchStr});"
dbSets="SET LINESIZE 600 PAGESIZE 0"
echo "${dbSets}\n${searchDBQuery}\nEXIT;" | sqlplus -S -L ${DBUSER}/${DBPASS}@${ORACLE_SID} 1> "${dbOutputFile}" 2> "${dbLogFile}"
retCode=${?}

if [ ${retCode} -ne 0 ]
then
	echo "Failed to execute query: [${retCode}]. Check log file: [${dbLogFile}]."
else
	echo "Query executed successfully!"
fi

############################################################################

The input file must be of form, otherwise you can change the code to suit your needs:
Code:
# cat searchUsers.txt
A
B
C
D
E
F

And must execute it as:
Code:
./searchUsersDB.sh searchUsers.txt

It is quite simple, but I hope it helps! Smilie
 

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LEARN ABOUT DEBIAN

dbix::searchbuilder::handle::oracle

DBIx::SearchBuilder::Handle::Oracle(3pm)		User Contributed Perl Documentation		  DBIx::SearchBuilder::Handle::Oracle(3pm)

NAME

	 DBIx::SearchBuilder::Handle::Oracle - An oracle specific Handle object

SYNOPSIS

DESCRIPTION

       This module provides a subclass of DBIx::SearchBuilder::Handle that compensates for some of the idiosyncrasies of Oracle.

METHODS

   Connect PARAMHASH: Driver, Database, Host, User, Password
       Takes a paramhash and connects to your DBI datasource.

   BuildDSN
       Customized version of "BuildDSN" in DBIx::SearchBuilder::Handle method.

       Takes additional argument SID. Database argument used unless SID provided.  Two forms of DSN are generated depending on whether Host
       defined or not:

	   dbi:Oracle:sid=<SID>;host=...[;port=...]
	   dbi:Oracle:<SID>

       Read details in documentation for DBD::Oracle module.

   Insert
       Takes a table name as the first argument and assumes that the rest of the arguments are an array of key-value pairs to be inserted.

   InsertFromSelect
       Customization of "InsertFromSelect" in DBIx::SearchBuilder::Handle.

       Unlike other DBs Oracle needs:

       o   id generated from sequences for every new record.

       o   query wrapping in parens.

       NOTE that on Oracle there is a limitation on the query. Every column in the result should have unique name or alias, for example the
       following query would generate "ORA-00918: column ambiguously defined" error:

	   SELECT g.id, u.id FROM ...

       Solve with aliases:

	   SELECT g.id AS group_id, u.id AS user_id FROM ...

   KnowsBLOBs
       Returns 1 if the current database supports inserts of BLOBs automatically.  Returns undef if the current database must be informed of BLOBs
       for inserts.

   BLOBParams FIELD_NAME FIELD_TYPE
       Returns a hash ref for the bind_param call to identify BLOB types used by the current database for a particular column type.  The current
       Oracle implementation only supports ORA_CLOB types(112).

   ApplyLimits STATEMENTREF ROWS_PER_PAGE FIRST_ROW
       takes an SQL SELECT statement and massages it to return ROWS_PER_PAGE starting with FIRST_ROW;

   DistinctQuery STATEMENTREF
       takes an incomplete SQL SELECT statement and massages it to return a DISTINCT result set.

   BinarySafeBLOBs
       Return undef, as Oracle doesn't support binary-safe CLOBS

   DatabaseVersion
       Returns value of ORA_OCI constant, see "Constants" in DBI.

   SimpleDateTimeFunctions
       Returns hash reference with specific date time functions of this database for "DateTimeFunction" in DBIx::SearchBuilder::Handle.

   ConvertTimezoneFunction
       Custom implementation of "ConvertTimezoneFunction" in DBIx::SearchBuilder::Handle.

       Use the following query to get list of timezones:

	   SELECT tzname FROM v$timezone_names;

       Read Oracle's docs about timezone files:

	   http://download.oracle.com/docs/cd/B14117_01/server.101/b10749/ch4datetime.htm#i1006667

AUTHOR

       Jesse Vincent, jesse@fsck.com

SEE ALSO

       perl(1), DBIx::SearchBuilder

perl v5.14.2							    2011-09-21				  DBIx::SearchBuilder::Handle::Oracle(3pm)
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