Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?

Re: Fishing for constraint => SQL designs

by nferraz (Monk)
on May 23, 2007 at 10:32 UTC ( #616969=note: print w/ replies, xml ) Need Help??

Help for this page

Select Code to Download

  1. or download this
        <table name="foo">
            <field name="a" required="1"/>
            <field name="b" validate="\d+\.\d+\.\d+"/>
            <field name="c" required="if a"/>
  2. or download this
        package Model::Validate::Foo;
                die "c is required if a" if $value_of{a};
  3. or download this
        <table name="foo">
            <constraint name="avg_a" value="average(a) > 100"/>
  4. or download this
        sub avg_a {
            # called on insert, update of table foo
            # check if average(a) > 100

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://616969]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (8)
As of 2015-11-30 13:20 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (770 votes), past polls