Michael Flora wrote: > Hello all, I posted this question yesterday but received no feedback > so I decided to ask again. > > I am new to MySQL and I am trying to access binary data stored in a > MySQL table using a C program. The table looks like this: > > > date date > double firstfield > double secondfield > double thirdfield > > My C code looks like this: > > double first; > double second; > . > . > . > row = mysql_fetch_row(result); > first = *row[1]; > . > . > . > Since a row is supposed to be returned as an array of pointers I > should be able to dereference to get the field value, right? However > I get nothing but junk. What am I doing wrong? > > Thanks for any suggestions, > Michael Flora
Please see http://www.mysql.com/doc/C/_/C_API_datatypes.html mysql_fetch_row() returns type MYSQL_ROW, which is an array of byte-strings. You will need to use the C library function atod() to change it into a double. -Mark --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
