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2. Connecting to Microsoft SQL
Server
Presented By
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3. Introduction
 We are going to discuss establishing an
connection to a SQL Server Database.
 You will learn that there is an easy way and a
hard way.

4. Agenda
 Overview – What do you have to know…
 Security Modes
 Database Interfaces
 Connecting to a SQL Server Data Source

5. Overview – What do you have to know…
1. Server Name
2. Security Information
3. Database name
4. Data Interface / API to use
5. Steps to connect…

6. Security Modes
There are two types of modes:
 Standard Mode (default)
 Integrated Mode
CLIENT SQL SERVER
Standard and
Integrated Security
DATABASE
Database Security
Users, Groups,
Permissions

7. Database Interfaces
OLE DB DB-ODBC
Library
Data
Object
Interfaces
Application
Programming
Interfaces
ADO RDO VBSQL DAO
JET
Relational
Databases
Other Data
Sources

8. Connecting to a SQL Server Data Source
 Connecting with Data Control
 Connecting with ADO Data Control (ADO)
 Connecting with ADO Data Control (DSN)
 Connecting with ADO Data Control (UDL)
 Connecting with ADO (Programmatically)

9. Connecting with Data Control
 Natively it can’t be done…
 It uses DAO.
 However…
 If a Jet Database has already connected to a SQL
Server database, then we can connect to that.
 Downside
 We’re indirectly connecting (through JET)
 Probably not the most efficient way.
 DEMO

10. Connecting with ADO Data Control
(ADO)
 Natively it connects fine
 It’s ADO
 Set the Connection string property
 Set the RecordSource property
 DEMO

11. Connecting with ADO Data Control
(DSN)
 Natively it connects fine
 It’s ODBC
 Set the Connection string property
 Set the RecordSource property

12. Data Source Name (DSN)
A DSN is a registry entry (Machine DSN) or text file
(File DSN) that contains information about a database
and the SQL Server it resides on.
Control Panel ->
Administrative Tools -> Data
Sources (ODBC)
Start Menu -> Administrative
Tools -> Data Sources
(ODBC)

13. Demo – Setting up a Data Source Name

14. Example of a File DSN (Standard)
[ODBC]
DRIVER=SQL Server
UID=sa
DATABASE=StateU
WSID=DALGOODWIN3
APP=Microsoft® Access
SERVER=dalgoodwin3

15. Example of a File DSN (Integrated)
[ODBC]
DRIVER=SQL Server
UID=tgoodwin
Trusted_Connection=Yes
DATABASE=pubs
WSID=DALGOODWIN3
APP=Microsoft Open Database Connectivity
SERVER=DALGOODWIN3DALGOODWIN32000

16. DEMO – ADO Control with DSN

17. Connecting with ADO Data Control
(UDL)
 Natively it connects fine
 It’s ADO
 Set the Connection string property
 Set the RecordSource property

18. Creating a UDL
 Create a file with a .UDL extention.
 Double-click on the icon.

19. Set the Provider

20. Set the Connection and Test

21. Examine the UDL
[oledb]
; Everything after this line is an OLE DB initstring
Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist
Security Info=False;User ID=sa;Initial Catalog=pubs;Data
Source=dalgoodwin3dalgoodwin32000
Look familiar?
Can you say “Connection string”

22. DEMO – ADO Control with UDL

23. Connecting with ADO (Programmatically)
 Declare an ADO connection object
 Set the Connection String
 Open the Connection
 Instantiate the recordset etc….

24. DEMO – Connect with ADO

25. Other ways
 RDO – Similar to ADO. Use DSN or DSN-less
connection strings
 ODBCDirect – Too much for this lesson
 ODBC – lots of API calls. Better off with the
ADO abstraction.

26. Summary
 We discussed establishing an connection to a
SQL Server Database.
 We learned that there is an easy way and a
hard way
 Questions?