Converting (too big)Raw into Hex

Hi there,

Here at my work(in Germany) i have a big problem:

Once a week there is a sqlscript, which should run and store data to a txt file.

There is a tablle in which imagedata is stored in RAW format(that one with small boxes, Qmarks and dots...).

Now i want to export it to the txtfile as HEX, so i can decode it by php further.

With the thumbnail, also stores there everything is fine, the SQL looks that way:

SELECt hex(thumbnail) FROM picTable where id_pic=54985

The Data is then displayed as HEX. But the standart picture is to big. When i use the statement:
SELECt hex(bigpic) FROM picTable where id_pic=54985

i got the error message:

An error occurred while running the query.

The data type, length, or value of argument 1 of HEX is invalid.

(SQL code = -171, SQL state = 42815)

After some research i found that the maximum lenght is 16 336 bytes for the HEX-operation. The picture is nearly 30 000 bytes... :shocked:
Have anyone an idea how to fix that?
I am not able here to accsess to the database direct...

I have been working for days on it.Uahh, wrong forum. Can anyone move this to SQL?|||the SQL forum is for standard SQL

i'm guessing you want this moved to the SQL Server forum

:)|||Still not solved...|||What is this "hex" function you are referring to? I could not find any reference to it in BOL (though it certainly would be a handy one to have!).

Regardless, assuming that there actually IS such an animal, can you consider breaking up the input data by sub-sections under your maximum size in the hex() function?

Such as using SUBSTRING ( expression , start , length )?

And then loop until the whole RAW data block is processed completely in bite-size chunks?