Initial commit

2019-11-15 12:59:38 +01:00
parent 40a414d210
commit b880c3ccde
6814 changed files with 379441 additions and 0 deletions
@@ -0,0 +1,158 @@
+This program connects to an ODBC data source called "db97".
+It then executes a SQL statement SELECT Model
+
+Code :
+
+
+#include <windows.h>
+
+#include <sqlext.h>
+
+#include <stdio.h>
+
+
+
+int main(void)
+
+{
+
+                HENV                      hEnv = NULL;
+// Env Handle from SQLAllocEnv()
+
+                HDBC                      hDBC = NULL;
+// Connection handle
+
+                HSTMT                   hStmt = NULL;
+// Statement handle
+
+                UCHAR                   szDSN[SQL_MAX_DSN_LENGTH] =
+"db97";                // Data Source Name buffer
+UCHAR*                  szUID = NULL;
+// User ID buffer
+
+                UCHAR*                  szPasswd = NULL;
+// Password buffer
+
+                UCHAR                   szModel[128];
+// Model buffer
+
+                SDWORD             cbModel;
+// Model buffer bytes recieved
+
+                UCHAR                   szSqlStr[] = "Select Model From
+Makes Where Make='Vauxhall'";                // SQL string
+
+                RETCODE              retcode;
+// Return code
+
+
+
+                // Allocate memory for ODBC Environment handle
+
+                SQLAllocEnv (&hEnv);
+
+
+
+                // Allocate memory for the connection handle
+
+                SQLAllocConnect (hEnv, &hDBC);
+
+
+
+                // Connect to the data source "db97" using userid and
+password.
+
+                retcode = SQLConnect (hDBC, szDSN, SQL_NTS, szUID,
+SQL_NTS, szPasswd, SQL_NTS);
+
+
+
+                if (retcode == SQL_SUCCESS || retcode ==
+SQL_SUCCESS_WITH_INFO)
+
+                {
+
+                                // Allocate memory for the statement
+handle
+
+                                retcode = SQLAllocStmt (hDBC, &hStmt);
+
+
+
+                                // Prepare the SQL statement by 
+assigning
+it to the statement handle
+
+                                retcode = SQLPrepare (hStmt, szSqlStr,
+sizeof (szSqlStr));
+
+
+
+                                // Execute the SQL statement handle
+
+                                retcode = SQLExecute (hStmt);
+
+
+
+                                // Project only column 1 which is the
+models
+
+                                SQLBindCol (hStmt, 1, SQL_C_CHAR, 
+szModel,
+sizeof(szModel), &cbModel);
+
+
+
+                                // Get row of data from the result set
+defined above in the statement
+
+                                retcode = SQLFetch (hStmt);
+
+
+
+                                while (retcode == SQL_SUCCESS || 
+retcode
+== SQL_SUCCESS_WITH_INFO)
+
+                                {
+
+                                                printf ("	%s
+",
+szModel);                                                // Print row
+(model)
+
+                                                retcode = SQLFetch
+(hStmt);                                 // Fetch next row from result 
+set
+
+                                }
+
+
+
+                                // Free the allocated statement handle
+
+                                SQLFreeStmt (hStmt, SQL_DROP);
+
+
+
+                                // Disconnect from datasource
+
+                                SQLDisconnect (hDBC);
+
+                }
+
+
+
+                // Free the allocated connection handle
+
+                SQLFreeConnect (hDBC);
+
+
+
+                // Free the allocated ODBC environment handle
+
+                SQLFreeEnv (hEnv);
+
+                return 0;
+
+}