Displaying 1 result from an estimated 1 matches for "pngfilecontents".
2010 Feb 10
0
RODBC Update image file into a MS-SQL database table
Hi,
I am creating some graphs which I want to update into a database table.
The procedure I am following is:
1. create the graphs as a png/jpeg file.
2. Read that file as a binary vector
3. sqlUpdate
My code:
pngfile <- file(<filename>, "rb")
N <- 1e6
repeat{
pngfilecontents <- readBin(pngfile, what="raw", n=N)
if(length(pngfilecontents) == N) N <- 5 * N else break
}
close(pngfile)
#There is a table df_DemandPatternMaster in the database with primary
key DemandPatternID, with appropriate record in place with NULL value in
pngFile field....