Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 525
  • Last Modified:

RDO Connection problem

Hi All,

I am very new to VB and now I have started coding in VB. I have to write an application using SQL server as a backend and RDO connection. I am having difficulty in writing the code for RDO. Can anyone help me and can give me the code for establishing the connection and executing the query with RDO thru VB. I need it urgently.

Kirti
0
kirtirani
Asked:
kirtirani
1 Solution
 
Ryan ChongCommented:
Hi kirtirani,

This class demo maybe can help you:

Demonstrates the creation of Master/Detail form using an RDO connection, also helps understand the object oriented programming concepts in VB.

http://www.vbcode.com/code/MDForm.zip

Anyway, you can use the RDO Control in component, follow the wizard provided, it is much easier stuff.

Basically, RDO is perform as well as the ADO.

'Hope will help.
0
 
kirtiraniAuthor Commented:
Hi ryancys,
thanx for ur program but the thing is I don't want to use the RDO control. and i can use ADO also its upto me. so please suggest which one is better and provide some more useful stuff.
kirti
0
 
MatdoneCommented:
Here is the code I use. It is in ADO. This will retrive the information from the table. You can use a DSNless connection or one that uses a DSN.

Sub GetSql()
Dim RSSQL As ADODB.Recordset

'This is the dsnless connection
ConnectStrSQL = "Provider=SQLOLEDB.1; Network Library=dbmssocn;Password=Password;User ID=UserName;Initial Catalog=DatabaseName;Data Source=ServerName;"

'This is the DSN connection string. this is the easiest method
ConnectStrSQL = "DSN=Pubs;UID=sa;PWD=pwd;"

'Open Sql Database for updating
Set RSSQL = New ADODB.Recordset
RSSQL.ActiveConnection = ConnectStrSQL
RSSQL.CursorType = adOpenKeyset
RSSQL.LockType = adLockOptimistic
RSSQL.Open "Select * from table"

Hope this helps. Read up on ADO at msdn.microsoft.com/vbasic/technical/articles/ado20/default.asp

Matt
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
jrspanoCommented:
if you have the choice definately use ado instead of rdo.  MS as quit releasing new rdo stuff and don't really support it anymore.
0
 
jrspanoCommented:
also the above way shown is slow as you have to reconnect to the db every time you want the recordset you should use a connection object if you have to get a bunch of recordsets

ex

dim cn as adodb.connection
dim rs1 as adodb.recordset
dim rs2 as adodb.recordset

set cn = new adodb.connection
set rs1 = new adodb.connection
set rs2 = new adodb.connection

cn.connectionstring = "DSN=mydsn" 'or use a dsn less one
cn.open

dim sql as string
dim sql2 as string
sql = "sql query"
sql2 = "sql2 query"

rs1.open sql, cn, adopenstatic, adlockreadonly
rs2.open sql2, cn, adopenstatic, adlockreadonly

do stuff with rs's

rs1.close
rs2.close
cn.close

set rs1 = nohting
set rs2 = nothing
set cn = nothing
0
 
Ryan ChongCommented:
Hi kirtirani,

This might be useful: http://www.able-consulting.com/tech.htm
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Tackle projects and never again get stuck behind a technical roadblock.
Join Now