C S <[EMAIL PROTECTED]> wrote: > thanks for the tip on the hex. now i can see my > entry of the blob. my original loop to fill the > dynamic array with unsigned shorts was this: > > imageArray = new unsigned short[10]; > > for(int i = 0; i < 10; i++) > imageArray[i] = i; > > so now if i run the program then do a: > > select imageID, hex(imageData) from Images; > > i get the result: > > 1|0000010002000300040005000600070008000900 > > i am not sure where the first 2 leading zeros are > coming from
The first value (the one at index 0) in imageArray is zero, represented by two zero bytes. > now i need to be able to extract the data back out of > the blob with sqlite3_column_blob and > sqlite3_column_bytes so that i can repopulate an > unsigned short array. > > if i have multiple blobs in the table Images how would > i go about retrieving back all this information? You prepare a select statement, e.g. select imageID, imageData from Images; Then you loop over all rows in the resultset with sqlite3_step call (each call advances to the next row), and for each row call sqlite3_column_* once for each column you are interested in. Igor Tandetnik _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
