10-11-2017
CSV file name: interface.csv
HDFS - Hive - Hbase <<< CSV Header
/unix/win/filename1 - con_tag_incr - con_tag <<< row 1
/unix/win/filename2 - crm_tag_incr - crm_tag <<< row 2
/unix/win/filename3 - retail_tag_incr - retail_tag_incr <<< row 3
Please let me know, if you need more details and appreciate your help
---------- Post updated 10-11-17 at 06:32 AM ---------- Previous update was 10-10-17 at 09:19 AM ----------
#!/bin/bash
input="/home/username/interface.csv"
while IFS=',' read -r f1 f2 f3
do
echo "$f1 $f2 $f3"
hdfs dfs -rm -R /user/"$f1"/retail.csv
hive -f /home/username/droptable.sql
done < "$input"
Now I have to pass the DB_NAME and TABLE_NAME as parameters into the shell script.
DB_NAME's: CON, RETAIL, CRM
DROP TABLE IF EXISTS ${DB_NAME}.${TABLE_NAME};
Last edited by shivamayam; 10-11-2017 at 10:45 AM..
Reason: CSV file with rows and updated DB
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LEARN ABOUT DEBIAN
anydata::format::csv
AnyData::Format::CSV(3pm) User Contributed Perl Documentation AnyData::Format::CSV(3pm)
NAME
AnyData::Format::CSV - tiedhash & DBI/SQL access to CSV data
SYNOPSIS
use AnyData;
my $table = adTable( 'CSV', $filename,'r',$flags );
while (my $row = each %$table) {
print $row->{name},"
" if $row->{country} =~ /us|mx|ca/;
}
# ... other tied hash operations
OR
use DBI
my $dbh = DBI->connect('dbi:AnyData:');
$dbh->func('table1','CSV', $filename,$flags,'ad_catalog');
my $hits = $dbh->selectall_arrayref( qq{
SELECT name FROM table1 WHERE country = 'us'
});
# ... other DBI/SQL operations
DESCRIPTION
This is a plug-in format parser for the AnyData and DBD::AnyData modules. It will read column names from the first row of the file, or
accept names passed by the user. In addition to column names, the user may set other options as follows:
col_names : a comma separated list of column names
eol : the end of record mark,
by default
quote_char : the character used to quote fields " by default
escape_char : the character used to escape the quote char, " by default
If you are using this with DBD::AnyData, put ad_ in front of the flags, e.g. ad_eol.
Please refer to the documentation for AnyData.pm and DBD::AnyData.pm for further details.
AUTHOR & COPYRIGHT
copyright 2000, Jeff Zucker <jeff@vpservices.com> all rights reserved
perl v5.10.1 2004-08-17 AnyData::Format::CSV(3pm)