How to grep the where clause of a SQL?


 
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# 1  
Old 09-19-2010
How to grep the where clause of a SQL?

Hi UNIX Gurus,

I want to use extract the where clause of a SQL present in a file. Please suggest me how can I do it.

Select * from emp where emp_id>10;

cat <file_name> | grep -i "where" returns whole SQL.

how can I extract only "where emp_id>10;"

Thanks in advance
# 2  
Old 09-19-2010
Don't use grep... use sed.

sed -n '/where emp_id>10;/p'
# 3  
Old 09-19-2010
thanks for the suggestion....

the SQL is not fix as the condition mentioned in the where clause may change.....
condition keeps on changing everytime, so we cannot use "where emp_id>10;" in script...

I need to use a logic which will extract the entire where clause.
# 4  
Old 09-19-2010
Code:
cat infile
Select * from emp where emp_id>10;

sed 's/.*\(where .*$\)/\1/' infile

# 5  
Old 09-19-2010
wow....
it worked...thanks a lot.....
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