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count of a string within a variable

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# 1  
Old 08-27-2010
count of a string within a variable
I am writing ksh to check for duplicate records in two different set of tables on oracle database, to get this i am running two plsql qurries at a time through the ksh, so the output of the qurries will be stored in variable say "SQL_STRING". So now to say if duplicate records exists in table or not i have to write a script which checks the count of the word "no rows selected" in the SQL_STRING variable.
I tried to write a script but ended up writing a wrong one.

Code:
str=`${SQL_STRING} | grep -c 'no rows selected'
echo $str

its throwing me an error as
-bash: no rows selected: command not found

Any help is greatly appreciated.
Last edited by Scott; 08-27-2010 at 05:54 PM.. Reason: Please use code tags
# 2  
Old 08-27-2010
Code:
str=`echo ${SQL_STRING} | grep -c 'no rows selected'`
echo $str

# 3  
Old 08-27-2010
Thank you buddy it works Smilie
# 4  
Old 08-27-2010
Code:
case "$SQL_STRING" in
  *"no rows selected"* ) echo $str;;
esac

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