ODBC and MSDE

[Audrius]

Hello,

I'm not sure if it is right group for this question, but I hope that
I'll get help here...

I'm using MSDE to store data for my application. And I'm having such
problem. I'm creating a table in DB for string connection information:

CREATE TABLE sql (
action_id int NOT NULL default '0',
database_name varchar(20) NOT NULL default '',
username varchar(15) NOT NULL default '',
password varchar(15) NOT NULL default '',
PRIMARY KEY (action_id)
);

Field 'database_name' stands for the DB name used by ODBC (In my Java
application I'm using ODBC, to connect to particular DB). So when I'm
adding a record to this table, for instance:
1, "MySQL", "root", "password"
ODBC || MSDE || JDBC changes the values by adding free space to fill
all the field's spaces (Instead of "MySQL" it adds "MySQL
"). It seems like some component doesn't understand that I'm using
varchar(20), not char.

For instance, when I'm using MySQL DB server, such problem doesn't
introduce itself... Does anyone know how to manage this?

Thank you,
Audrius

[Audrius]

When I tried to insert data into MSDE table using console, everything
worked fine. The data occupies exactly as it should ("MySQL" - 5
symbols). But when I do this using ODBC from my application, it doesn't
work right. Can anyone suggest me a solution?

[Erland Sommarskog]

Audrius (au**************@gmail.com) writes:

I'm not sure if it is right group for this question, but I hope that
I'll get help here...

I'm using MSDE to store data for my application. And I'm having such
problem. I'm creating a table in DB for string connection information:

CREATE TABLE sql (
action_id int NOT NULL default '0',
database_name varchar(20) NOT NULL default '',
username varchar(15) NOT NULL default '',
password varchar(15) NOT NULL default '',
PRIMARY KEY (action_id)
);

Field 'database_name' stands for the DB name used by ODBC (In my Java
application I'm using ODBC, to connect to particular DB). So when I'm
adding a record to this table, for instance:
1, "MySQL", "root", "password"
ODBC || MSDE || JDBC changes the values by adding free space to fill
all the field's spaces (Instead of "MySQL" it adds "MySQL
"). It seems like some component doesn't understand that I'm using
varchar(20), not char.

It appears that your app passes "MySQL ". In such case,
SQL Server will store the trailing spaces when the ANSI_PADDING
option is in effect, which it is by default when you use ODBC. You
need to trim the trailing spaces somewhere on the line.

There are a few more possibilities, but I can't really speculate
about them, as you did not provide any code.
--
Erland Sommarskog, SQL Server MVP, es****@sommarskog.se

Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techinf...2000/books.asp

[Audrius]

Yes, it solved the problem. ODBC was set to use ANSI padding by
default. Your reply saved me a lot of time, thank you.

Audrius

[Erland Sommarskog]

Audrius (au**************@gmail.com) writes:

Yes, it solved the problem. ODBC was set to use ANSI padding by
default. Your reply saved me a lot of time, thank you.

While turning of ANSI_PADDING may solve the problem, be aware of
that there are features in SQL Server that require ANSI_PADDING to
be on. In SQL 2000 that is indexed views and indexes on computed
columns. I believe there are more features in SQL 2005.
--
Erland Sommarskog, SQL Server MVP, es****@sommarskog.se

Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techinf...2000/books.asp