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Top Forums UNIX for Dummies Questions & Answers Reading multiple variables in a loop Post 302953334 by bakunin on Thursday 27th of August 2015 05:49:08 AM
Old 08-27-2015
Quote:
Originally Posted by shash
Thanks bakunin. The issue is the variable will be in the following format:
Why? If it is a variable you can define it in any way you want, no?

Or is it some external input you need to use? In this case: how did it get into this variable? Perhaps there is a better way to put it in more suitably formed variables. You might want to present the whole problem, not just an arbitrary part of it.

Quote:
Originally Posted by shash
Code:
table_name=table1,table2,table3
col_name=col1,col2,col3

In this case how to use the array please?
The following is not pretty and less readable than my original idea, but there you go:

Code:
#! /bin/ksh

table_name="table1,table2,table3"
col_name=col1,col2,col3
table=""
col=""

while [ "$table_name" != "" ] ; do
     table="${table_name%%,*}"
     col="${col_name%%,*}"

     echo "TABLE: $table    COL: $col"

     table_name="${table_name##${table}}"
     col_name="${col_name##${col}}"
     table_name="${table_name##,}"
     col_name="${col_name##,}"
done

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
 

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PG_COPY_FROM(3) 														   PG_COPY_FROM(3)

pg_copy_from - Insert records into a table from an array

SYNOPSIS
bool pg_copy_from (resource $connection, string $table_name, array $rows, [string $delimiter], [string $null_as]) DESCRIPTION
pg_copy_from(3) inserts records into a table from $rows. It issues a COPY FROM SQL command internally to insert records. PARAMETERS
o $connection - PostgreSQL database connection resource. o $table_name - Name of the table into which to copy the $rows. o $rows - An array of data to be copied into $table_name. Each value in $rows becomes a row in $table_name. Each value in $rows should be a delimited string of the values to insert into each field. Values should be linefeed terminated. o $delimiter - The token that separates values for each field in each element of $rows. Default is TAB. o $null_as - How SQL NULL values are represented in the $rows. Default is N ("\N"). RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 pg_copy_from(3) example <?php $db = pg_connect("dbname=publisher") or die("Could not connect"); $rows = pg_copy_to($db, $table_name); pg_query($db, "DELETE FROM $table_name"); pg_copy_from($db, $table_name, $rows); ?> SEE ALSO
pg_copy_to(3). PHP Documentation Group PG_COPY_FROM(3)
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