mysql_hex_string() c-api

2005-08-16 Thread Danny Stolle

Hello all,

can somebody explain to me the c-api mysql_hex_string().
when i debug my example in DDD i get the full sql-dml (insert) as a 
hex-value; which this function returns. putting a 0x in front of the hex 
and use it in a mysql_real_query() returns an error.


or am i doing it wrong! should i use the values which are used in the 
insert-string and convert them into hex using this function?


the example provided in the documentation is not realy helpfull though.

hopefully i am clear, otherwise please let me know.

Thank you.

Danny Stolle
Netherlands.

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Re: mysql_hex_string() c-api

2005-08-16 Thread Paul DuBois

At 19:43 +0200 8/16/05, Danny Stolle wrote:

Hello all,

can somebody explain to me the c-api mysql_hex_string().
when i debug my example in DDD i get the full sql-dml (insert) as a 
hex-value; which this function returns. putting a 0x in front of the 
hex and use it in a mysql_real_query() returns an error.


or am i doing it wrong! should i use the values which are used in 
the insert-string and convert them into hex using this function?


the example provided in the documentation is not realy helpfull though.

hopefully i am clear, otherwise please let me know.


It take an argument string such as abc and returns it as a string
representing the hex digits for the characters in the string.

Input: abc
Output: 616263

You should take that result and insert it into a SQL statement where a
data value is allowable, preceded by 0x.  It's not intended that you
pass mysql_hex_string() a complete SQL statement.

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Paul DuBois, MySQL Documentation Team
Madison, Wisconsin, USA
MySQL AB, www.mysql.com

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Re: mysql_hex_string() c-api

2005-08-16 Thread Danny Stolle
I thought it was something like that ... I just found it strange 
allready. I'll give it a try, thanx.


Danny

Paul DuBois wrote:

At 19:43 +0200 8/16/05, Danny Stolle wrote:


Hello all,

can somebody explain to me the c-api mysql_hex_string().
when i debug my example in DDD i get the full sql-dml (insert) as a 
hex-value; which this function returns. putting a 0x in front of the 
hex and use it in a mysql_real_query() returns an error.


or am i doing it wrong! should i use the values which are used in the 
insert-string and convert them into hex using this function?


the example provided in the documentation is not realy helpfull though.

hopefully i am clear, otherwise please let me know.



It take an argument string such as abc and returns it as a string
representing the hex digits for the characters in the string.

Input: abc
Output: 616263

You should take that result and insert it into a SQL statement where a
data value is allowable, preceded by 0x.  It's not intended that you
pass mysql_hex_string() a complete SQL statement.



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