Conditional SQL query

Hi,

how can I insert a record after checking whether one of the fields has a
certain value or not? eg:

if table(col1)='value' insert into table values (x,x,x)

I am using perl interface. Is there any way to define a function to take
table name as an argument? (eg: select * from $table) I tried but this
gave an error (so I'm using perl to pass the real tablename for each
query)

Any help will be great,
Indraneel

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# Indraneel Majumdar ¡ E-mail: indraneel(at)123india(dot)com #
# Bioinformatics Unit (EMBNET node), ¡ URL: http://scorpius.iwarp.com #
# Centre for DNA Fingerprinting and Diagnostics, #
# Hyderabad, India - 500076 #
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