Hi everyone --

I'm a MySQL noob. I have MySQL queries in my C code and I was surprised to find 
I'm getting a success return from:

  mysql_query(pmysql, "select * from usrs where(usr=\"illegal name\"");

In this table called "usrs," "usr" is the primary key and the engine is myisam. 
I expected an error return from this query on "illegal name," which is not in 
the table.

An error is not returned until I call:

  prow = mysql_fetch_row(pmysqlres));

which returns NULL, which is great. 

If I run that same select from the command line, I see:

  mysql> select * from usrs where (usr="illegal name");
  Empty set (0.00 sec)

My question, finally: Is this response to my program call expected and normal 
for MySQL? I suppose it is, but I just want to make sure that the behavior is 
OK, that indeed the program call to mysql_query(select ...) must always in 
these circumstances return success.

Thanks!

-- Pete Wilson


      

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