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SQL to VB object

Posted on 2004-08-23
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Last Modified: 2010-08-05
Hello,

I have a schema SQL (DDL).  It will likely change a lot (i.e. entities and relationships will be added and removed).  I am going to use the schema for a file structure definition and I would like to have a VB object/s created for interfacing the file.  Do you know of any quick ways to generate VB objects from a SQL definition?

E.g. SQL input:

CREATE TABLE A
 (ID NUMBER
 ,DATA VARCHAR2(4000)
 )

VB object output (A.cls file):

Private ID As Integer 'local copy
Private DATA As String 'local copy
Public Property Let time(ByVal _ID As integer)
    ID = _ID
End Property

Public Property Get ID() As Integer
    ID = ID
End Property

...
0
Comment
Question by:rmundkowsky
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9 Comments
 
LVL 29

Expert Comment

by:leonstryker
ID: 11892714
If you are using SQL Server you can do this with DTS.  What is your database?

Leon
0
 

Author Comment

by:rmundkowsky
ID: 11923353
Actually, there is no database.  The data design was just done in a ER modeling tool.
0
 
LVL 29

Expert Comment

by:leonstryker
ID: 11926957
The only way soemthing like this is possible is by launching another tool/process or something else, which is database specific.  So for example you may be able to execute xp_command_shell (or a similar system store proc) in Sybase or MS SQL Server, or you can utilize Perl/Java/VBScript ot whatever the database may support.  However, there is no direct way to "generate VB objects from a SQL".

Leon
0
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Author Comment

by:rmundkowsky
ID: 11933352
Maybe I need to rephrase the question:

I want to create VB classes (source code), not objects (instants of classes) from SQL.
0
 
LVL 29

Expert Comment

by:leonstryker
ID: 11933937
Give me an example of what it would look like if it waqs possible?  I am having a hard time visualizing this.

Leon
0
 

Author Comment

by:rmundkowsky
ID: 11934093
SQL INPUT:

         CREATE TABLE A (ID NUMBER ,DATA VARCHAR2(4000) )

VB CLASS OUTPUT:

         Private ID As Integer 'local copy
         Private DATA As String 'local copy

         Public Property Let time(ByVal _ID As integer)
             ID = _ID
         End Property

         Public Property Get ID() As Integer
             ID = ID
         End Property

         ....
0
 
LVL 29

Expert Comment

by:leonstryker
ID: 11934251
Well, I guess you can create SQL code which will generate VB code and retrieve the result into a text file, but it will not be simple.

It seems to me that it would be easier to start in VB and have your code create a table in SQL Server and then create your class.

Leon
0
 

Author Comment

by:rmundkowsky
ID: 11934763
Yeah,

I think my current approach (below) is better.  

Have a Perl script to convert SQL to VB code.

Just thought someone might know of a tool that already does this.
0
 
LVL 29

Accepted Solution

by:
leonstryker earned 1050 total points
ID: 11935748
Well, you are using the same method as i suggested above, just that you are starting from Perl instead of VB.  I am pretty sure that no such tool exists.

Leon
0

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