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comp.lang.ruby

Inserting data from an array into an ms access 2000 table

Cooper Deford

7/20/2008 9:00:00 PM

Good Afternoon,

I am trying to figure out how to get data from an array into an access
table.

On the rubyonwindows site I found the following code:

db = AccessDb.new('c:\Baseball\lahman54.mdb')
db.opendb.query("SELECT * FROM AllStar WHERE playerID =
'conceda01';")field_names = db.fields
rows = db.data
db.execute("INSERT INTO HallOfFame VALUES ('Dave', 'Concepcion');")
db.close

This code works fine if I break the array up into seperate elements but
I think there must be a simpler way.

this is how the array is built:

class <<Array
def multi(n, *args, &block)
if args.empty?
Array.new(n, &block)
else
Array.new(n) do
Array.multi(*args, &block)
end
end
end
end
card=Array.multi(24,24)


so the question is; How do i get the data loaded into this array into my
access table called wps in a database wps.mdb?

I have been trying to do something like this:

db.execute("INSERT INTO wps_test VALUES('card [$h]');"

Any help would be greatly appreciated.
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2 Answers

David Mullet

7/22/2008 2:19:00 AM

0

Cooper Deford wrote:
> Good Afternoon,
>
> I am trying to figure out how to get data from an array into an access
> table.
>
> On the rubyonwindows site I found the following code:
>
> db = AccessDb.new('c:\Baseball\lahman54.mdb')
> db.opendb.query("SELECT * FROM AllStar WHERE playerID =
> 'conceda01';")field_names = db.fields
> rows = db.data
> db.execute("INSERT INTO HallOfFame VALUES ('Dave', 'Concepcion');")
> db.close
>
> This code works fine if I break the array up into seperate elements but
> I think there must be a simpler way.
>
> this is how the array is built:
>
> class <<Array
> def multi(n, *args, &block)
> if args.empty?
> Array.new(n, &block)
> else
> Array.new(n) do
> Array.multi(*args, &block)
> end
> end
> end
> end
> card=Array.multi(24,24)
>
>
> so the question is; How do i get the data loaded into this array into my
> access table called wps in a database wps.mdb?
>
> I have been trying to do something like this:
>
> db.execute("INSERT INTO wps_test VALUES('card [$h]');"
>
> Any help would be greatly appreciated.

Assuming you are working with something like the AccessDb class defined
here...

http://rubyonwindows.bl.../2007/06/using-ruby-ado-to-work-with-ms-a...

...you could iterate over your array and generate/execute an SQL insert
statement, like this:

my_array.each do |a|
b = a.collect{|x| x = "'" + x + "'"}
c = b.join(",")
sql = "INSERT INTO MyTable VALUES (#{c});"
db.execute(sql)
end

The above code can certainly be improved upon, but hopefully gives you
an idea.

David

http://rubyonwindows.bl...
--
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Cooper Deford

7/22/2008 2:52:00 AM

0

David,

Thanks very much for your response. This works just fine as is. I fooled
around quite a bit with join as part of the sql= statement but never
thought to iterate through the array. This is great.

Thanks again,

Cooper

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