Sybase Interview Question:

How do I pipe the output of one isql to another?

Submitted by: Administrator

The following example queries sysdatabases and takes each database name and creates a string of the sort sp_helpdb dbname and sends the results to another isql. This is accomplished using bourne shell sh(1) and sed(1) to strip unwanted output:

#!/bin/sh

PASSWD=yuk
DSQUERY=GNARLY_HAIRBALL

echo "$PASSWD print "$PASSWD"
go
select 'sp_helpdb ' + name + char(10) + 'go'
from sysdatabases
go" | isql -U sa -S $DSQUERY -w 1000 |
sed -e '/affected/d' -e '/---/d' -e '/Password:/d' |
isql -U sa -S $DSQUERY -w 1000
Submitted by: Administrator