mysql: troubles with insert

Trevor DeVore lists at mangomultimedia.com
Fri Jul 20 08:27:46 CDT 2007


On Jul 20, 2007, at 4:18 AM, Henk van der Velden wrote:

> I think something is wrong in the way Rev creates a query out of my  
> array.
> If I force Rev to put the right value in the query by doing this:
>     put "INSERT INTO g2_Entity() VALUES('"&vars[1]&"',: 
> 2,:3,:4,:2,:3,:5,:4)" into tsql
> the record is inserted with the correct id.
> But the standard way:
>     put "INSERT INTO g2_Entity() VALUES(:1,:2,:3,:4,:2,:3,:5,:4)"  
> into tsql
> inserts it with the wrong id.
>
> I have double checked the values of my array vars[] - it is OK.
>
> I was wondering if this might have something to do with the way Rev  
> handles arrays. Rev 'does' only associative arrays, not numeric  
> arrays, isn' t it? I was a bit surprised to find out that I had to  
> use numeric arrays in order to build queries.

Hi Henk,

I've seen a bug in the MySQL driver that is probably the same one you  
are seeing. I don't know the exact recipe but I came across it when I  
was:

1) Using binding with RevDB calls.
2) Inserting values into a table with only integer columns.

I think what happened in my case is that one of the binding variables  
(:1 for example) would get the value of another binding variable. If  
I remember correctly (and this was a long time ago) I was able to fix  
this by either altering my table structure so the table included a  
string value or not using binding.

-- 
Trevor DeVore
Blue Mango Learning Systems
www.bluemangolearning.com    -    www.screensteps.com
trevor at bluemangolearning.com





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