Program with embedded sql gives compilation error - sql

Question

#include<stdio.h>
#include<error.h>
#include<sys/shm.h>
#include "/opt/PostgreSQL/9.1/include/libpq-fe.h"
int main()
{
PGconn *conn;
int buf_ptr=0;
int i;
{
fprintf(stderr,"connection to database failed:%s",PQerrorMessage(conn));
exit(0);
}
else
{
printf("connection to database successful \n");
}
printf("Do you want to create a table enter 1 \n ");
scanf("%d",&i);
if(i==1)
{
EXEC SQl CREATE TABLE EMPOYE(
ENO INT,
ENAME VARCHAR(10));
}
return 0;
}
hello i am a newbie i am learning embedded c
i want to create a simple code where a table is created in c
when i am compiling the above program i am getting error like
embc.c:25: error: âEXECâ undeclared (first use in this function)
embc.c:25: error: (Each undeclared identifier is reported only once
embc.c:25: error: for each function it appears in.)
embc.c:25: error: expected â;â before âSQlâ
please help

Answer 1

First, the connection to database is missing, you should have something like :
int i=0;
EXEC SQL CONNECT TO target [AS connection-name] [USER user-name];
Or
PGconn *conn;
int buf_ptr=0;
int i=0;
conn = PQconnectdbParams(const char **keywords, const char **values, int expand_dbname);
then save your source file as prog.pgc and run :
ecpg prog.pgc
this will create a file called prog.c which can be compiled as a standard C file.