tags:

views:

98

answers:

0
Q: 

How to convert a PGresult to custom data type with libpq (PostgreSQL)

Hi everyone!

I'm using the libpq library in C to accessing my PostgreSQL database. So, when I do res = PQexec(conn, "SELECT point FROM test_point3d"); I don't know how to convert the PGresult I got to my custom data type.

I know I can use the PQgetValue function, but again I don't know how to convert the returning string to my custom data type.

Any suggestion?

Thanks in advice.

related questions

any good tool for makefile generation?
How do you pass a function as a parameter in C?
Where should a veteran C programmer start in order to master Java ?
Any good book on best practice and guidelines in developing a SDK in C?
How do you determine the size of a file in C?
Decoding printf statements in C (Printf Primer)
Shift operator in C
How to avoid redefining VERSION, PACKAGE, etc.
Alpha blending sprites in Nintendo DS Homebrew
When should I use type abstraction in embedded systems
How to implement continuations?
What are the barriers to understanding pointers and what can be done to overcome them?
Anyone have experience creating a shared library in MATLAB?
String.indexOf function in C
Passing multidimensional arrays as function arguments in C
C/C++ library for reading MIDI signals from a USB MIDI device
Choosing a static code analysis tool
How do you printf an unsigned long long int?
Good STL-like library for C.
Rockbox audio format
Why am I getting a malloc: double free error with realloc()?
Should I learn C?
GTK implementation of MessageBox
Is gettimeofday() guaranteed to be of microsecond resolution?
How to use the C socket API in C++ on z/OS