Problem with OleDbCommand

[Beringer]

Hello,

I am trying to make a query against an Access Database File using OleDb part
of the framework.
I created an SQL Query string using Access and it will execute the query
successfully in example SQL statement below:

SELECT * FROM myTable WHERE column1 Like "mytext*";

Now when I take that command and place it in an OleDbCommand as follows:

command.Command Text = "SELECT * FROM myTable WHERE column1 Like 'mytext*'";

And then execute a datareader with that command, the result is an empty set.
I've tried removing the single quotes " ' " from around the wildcard (i.e.
command.Command Text = "SELECT * FROM myTable WHERE column1 Like mytext*";)
and that generates an exception at run time.

Any ideas?

I have done similar queries using the SQL part of the framework and that
works ok for instance:
command.Command Text = "SELECT * FROM myTable WHERE column1 Like 'mytext%'";
works when the command is a SqlCommand.

Thank you in advance,
Eric

[JuLiE Dxer]

Can't you just use the % for your wildcard character??
SELECT *
FROM myTable
WHERE column1 LIKE 'mytext%';

Of interest, if you swap the % in for the * when inside MS Access it
should return an empty table. Perhaps, that's exactly what's happening
with your situation. I always use % for wildcard with OleDb here.

On Sun, 10 Oct 2004 00:23:24 -0700, "Beringer"
<bo*********@in valid.com> wrote:

Hello,

I am trying to make a query against an Access Database File using OleDb part
of the framework.
I created an SQL Query string using Access and it will execute the query
successfully in example SQL statement below:

SELECT * FROM myTable WHERE column1 Like "mytext*";

Now when I take that command and place it in an OleDbCommand as follows:

command.Comman dText = "SELECT * FROM myTable WHERE column1 Like 'mytext*'";

And then execute a datareader with that command, the result is an empty set.
I've tried removing the single quotes " ' " from around the wildcard (i.e.
command.Comman dText = "SELECT * FROM myTable WHERE column1 Like mytext*";)
and that generates an exception at run time.

Any ideas?

I have done similar queries using the SQL part of the framework and that
works ok for instance:
command.Comman dText = "SELECT * FROM myTable WHERE column1 Like 'mytext%'";
works when the command is a SqlCommand.

Thank you in advance,
Eric

[Morten Wennevik]

Hi Eric,

Have you tried

"SELECT * FROM myTable WHERE column1 Like \"mytext*\""

--
Happy Coding!
Morten Wennevik [C# MVP]

[Beringer]

It is interesting I tried both ideas.
Placing literal " around the wildcard didn't work.
However, replacing the * with a % did. Now I thought % was SQL Server
specific and * was used in Access. Guess not.
Thanks for the input.
Eric

"Beringer" <bo*********@in valid.com> wrote in message
news:Gr5ad.4595 $kz3.4211@fed1r ead02...

Hello,

I am trying to make a query against an Access Database File using OleDb
part of the framework.
I created an SQL Query string using Access and it will execute the query
successfully in example SQL statement below:

SELECT * FROM myTable WHERE column1 Like "mytext*";

Now when I take that command and place it in an OleDbCommand as follows:

command.Command Text = "SELECT * FROM myTable WHERE column1 Like
'mytext*'";

And then execute a datareader with that command, the result is an empty
set.
I've tried removing the single quotes " ' " from around the wildcard (i.e.
command.Command Text = "SELECT * FROM myTable WHERE column1 Like mytext*";)
and that generates an exception at run time.

Any ideas?

I have done similar queries using the SQL part of the framework and that
works ok for instance:
command.Command Text = "SELECT * FROM myTable WHERE column1 Like
'mytext%'";
works when the command is a SqlCommand.

Thank you in advance,
Eric

[ambshah]

you are right * is used in access , but here you are using oledb , i had a
similar problem when i used odbc and access , * worked in access but did not
work when i connected through odbc
fyi
"Beringer" <bo*********@in valid.com> wrote in message
news:Rwfad.4676 $kz3.721@fed1re ad02...

It is interesting I tried both ideas.
Placing literal " around the wildcard didn't work.
However, replacing the * with a % did. Now I thought % was SQL Server
specific and * was used in Access. Guess not.
Thanks for the input.
Eric

"Beringer" <bo*********@in valid.com> wrote in message
news:Gr5ad.4595 $kz3.4211@fed1r ead02...

Hello,

I am trying to make a query against an Access Database File using OleDb
part of the framework.
I created an SQL Query string using Access and it will execute the query
successfully in example SQL statement below:

SELECT * FROM myTable WHERE column1 Like "mytext*";

Now when I take that command and place it in an OleDbCommand as follows:

command.Command Text = "SELECT * FROM myTable WHERE column1 Like
'mytext*'";

And then execute a datareader with that command, the result is an empty
set.
I've tried removing the single quotes " ' " from around the wildcard
(i.e. command.Command Text = "SELECT * FROM myTable WHERE column1 Like
mytext*";)
and that generates an exception at run time.

Any ideas?

I have done similar queries using the SQL part of the framework and that
works ok for instance:
command.Command Text = "SELECT * FROM myTable WHERE column1 Like
'mytext%'";
works when the command is a SqlCommand.

Thank you in advance,
Eric