database.c
changeset 3 820ed7fb9314
child 8 96d16dfe787a
new file mode 100644
--- /dev/null
+++ b/database.c
@@ -0,0 +1,59 @@
+/**
+ * $Id: main.c,v 1.1.1.1 2008-04-28 17:32:52 mbroeker Exp $
+ * $Source: /development/c/database/main.c,v $
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <libpq-fe.h>
+
+int main (int argc, char **argv)
+{
+    char *conninfo;
+    PGconn *conn;
+    PGresult *res;
+    int nFields;
+    int i;
+    int j;
+
+    conninfo = "dbname=lightintron";
+
+    conn = PQconnectdb (conninfo);
+    if (conn == NULL)
+        printf ("ERROR\n");
+    else
+        printf ("SUCCESS\n");
+
+    if (argc != 2)
+        res = PQexec (conn, "select \"MNr\", \"Name\", \"Vorname\", \"Bemerkungen\" from \"Mitarbeiter\"");
+    else
+        res = PQexec (conn, argv[1]);
+
+    /*
+     * first, print out the attribute names
+     */
+    nFields = PQnfields (res);
+    for (i = 0; i < nFields; i++)
+        printf ("%-15s", PQfname (res, i));
+    printf ("\n\n");
+
+    /*
+     * next, print out the rows
+     */
+
+    for (i = 0; i < PQntuples (res); i++) {
+        for (j = 0; j < nFields; j++) {
+            if (!strcmp (PQfname (res, j), "message"))
+                printf ("\n");
+            printf ("%-15s", PQgetvalue (res, i, j));
+        }
+        printf ("\n");
+    }
+
+    PQclear (res);
+
+    PQfinish (conn);
+
+    return 0;
+}