test/odbc/Connect/odbcconnect1.c

   1 //       connect to the DATA SOURCE.
   2 //       disconnect from the data source
   3
   4 //       Author : Jitendra Lenka
   5
   6 #include<stdio.h>
   7 #include<stdlib.h>
   8 #include<sql.h>
   9 #include<sqlext.h>
  10 #include<string.h>
  11
  12
  13
  14 //*************************************************************************
  15
  16 inline void checkrc(int rc,int line)
  17 {
  18    if(rc)
  19    {
  20        printf("ERROR %d at line %d\n",rc,line);
  21        exit(1);
  22    }
  23 }
  24
  25 //*************************************************************************
  26 int main()
  27 {
  28   SQLHENV env;
  29   SQLHDBC dbc;
  30   SQLHSTMT stmt;
  31   SQLRETURN ret;
  32   SQLCHAR outstr[1024];
  33   SQLSMALLINT outstrlen;
  34
  35   // Aloocate an environment handle
  36   ret=SQLAllocHandle(SQL_HANDLE_ENV,SQL_NULL_HANDLE,&env);
  37   checkrc(ret,__LINE__);
  38
  39    //we need odbc3 support
  40    SQLSetEnvAttr(env,SQL_ATTR_ODBC_VERSION,(void*)SQL_OV_ODBC3,0);
  41
  42   //ALLOCATE A Connection handle
  43   ret = SQLAllocHandle(SQL_HANDLE_DBC,env,&dbc);
  44   checkrc(ret,__LINE__);
  45
  46   // connect to the DSN data source
  47   ret = SQLConnect (dbc,
  48                    (SQLCHAR *) "test", (SQLSMALLINT) strlen ("test"),
  49                    (SQLCHAR *) "root",
  50                    (SQLSMALLINT) strlen ("root"),
  51                    (SQLCHAR *) "manager",
  52                    (SQLSMALLINT) strlen (""));
  53
  54   if(SQL_SUCCEEDED(ret))
  55   {
  56      printf("\nConnected to the Data Source successfully..\n");
  57
  58   }
  59    else
  60   {
  61         printf("error in connection\n");
  62
  63         ret = SQLFreeHandle(SQL_HANDLE_DBC,dbc);
  64         checkrc(ret,__LINE__);
  65
  66         ret = SQLFreeHandle(SQL_HANDLE_ENV,env);
  67         checkrc(ret,__LINE__);
  68
  69         return 2;
  70    }
  71
  72    ret = SQLDisconnect(dbc);
  73    checkrc(ret,__LINE__);
  74    printf("Disconnected from the Datasource\n");
  75
  76
  77    ret = SQLFreeHandle(SQL_HANDLE_DBC,dbc);
  78    checkrc(ret,__LINE__);
  79
  80    ret = SQLFreeHandle(SQL_HANDLE_ENV,env);
  81    checkrc(ret,__LINE__);
  82    return 0;
  83 }