Connect Linux C to the PostgreSQL database

# Include <stdio. h> # Include <Stdlib. h> # Include <Libpq-fe.h> # Include < String . H> Int  Main () {pgconn * Conn;  Const   Char * Conninfo = "  Host = localhost dbname = cloud user = cloud Password = cloud  "  ; //  Char conninfo [100];  //  Sprintf (conninfo, "dbname = % s user = % s Password = % s", "Cloud "); Conn = Pqconnectdb (conninfo );  If (Pqstatus (conn) = Connection_bad) {fprintf (stderr,  "  Connection to % s failed  "  , Conninfo); pqerrormessage (conn );}  Else Printf ( " Connection OK  "  ); Pqfinish (conn );  Return   0  ;} 

Compilation problem: http://www.cnblogs.com/xfiver/archive/2012/02/17/2355642.html

GCC Compilation: gcc-I/usr/include/PostgreSQL. C-o pgsql-lpq

 

 

Yum install postgresql-devel

If there are no include and Lib directories ...... It indicates that you have not installed and developed the devel package. The RedHat should have its Development Kit