Security on MySQL tables for MyISAM

Hello friends,
Question 1 :
I have installed MySQL version 4.0.3 beta on Windows 2000 machine with PIV, 128 MB RD RAM.
I've created two databases say A and B and then created Tables a1,a2,a3 in database A and b1,b2,b3,b4,b5 in database B (All these table types are of MyISAM).... Now if simply i copy all the files residing in database A to database B removing ... i can easily see all the tables that were in A.
HOw to prevent this?? if u know any of the solution.. do write me at the earliest...??
Question 2:
Is it possible with mysql to have a user which is allowed to start Only the Server (NO Other Permissions ..i.e. read, write user tables etc)... i'll create other users for accessing the database ....??
Thanx in advance,
Ketan
\\|||//
( o o )
\ 0 /
-----------------o00o--------o00o----------------------
There are 10 kinds of people in the World, One Who
understands binary, Other Who don't...
- from a Forum Post
---------------------o00o--------o00o------------------

>
HOw to prevent this?? if u know any of the
e solution.. do write me at the earliest...??
Not sure if I understand the question. But if I do, the answer has nothing to do with java.
The database you are using allows you to create users with rights to do things. You create the users such they can not do things that they shouldn't.
"How" you do this is explained in SQL Server documentation.
There is absolutely no way to prevent this if the user has all access rights - such as a DBA. Then it is not a programming issue, it is a management issue.
>
Question 2:
Is it possible with mysql to have a user which is
s allowed to start Only the Server (NO Other
Permissions ..i.e. read, write user tables etc)...
i'll create other users for accessing the database
....??No. And Yes.
If you set the server up to validate using Windows users rather than SQL Server users then you assign permissions based on the windows user. So only those users with rights in database can do anything.
However, setting up SQL Server to do users via Windows is seldom, if ever, a good idea. The two are simply two different domains.
It is common practice to have sys admins start and stop production databases. But only the DBAs have access to the database itself. Just like sys admins can usually log in to any (or most) computers, but they don't log in as the user of the computer, but rather as an adminstrator or as themselves.
The above is not really part of SQL Server. It is part of the management practice for running a business (and the knowledge of how to set rights for users in databases and operating systems.)

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Hello,
I have set up an HS to a MySql 3.51 dabatabe using an ODBC DNS. My Oracle box has version 10.2.0.1 running in Windows 2003 R2. MySQL version is 4.1.22 running on a different machine with the same OS.
I completed the connection through a database link, which works fine in SQLPLUS when selecting small MySQL Tables. However, I keep getting an out of memory error when selecting certain large table from the MySQL database. Previously, I had tested the DNS and ran the same SELECT in Access and it doesn't give any error. This is the error thrown by SQLPLUS:
SQL> select * from progressnotes@mysql_rmg where "encounterID" = 224720;
select * from progressnotes@mysql_rmg where "encounterID" = 224720
ERROR at line 1:
ORA-00942: table or view does not exist
[Generic Connectivity Using ODBC][MySQL][ODBC 3.51
Driver][mysqld-4.1.22-community-nt]Lost connection to MySQL server during query
(SQL State: S1T00; SQL Code: 2013)
ORA-02063: preceding 2 lines from MYSQL_RMG
I traced the HS connection and here is the result from the .trc file:
Oracle Corporation --- THURSDAY JUN 12 2008 11:19:51.809
Heterogeneous Agent Release
10.2.0.1.0
(0) [Generic Connectivity Using ODBC] version: 4.6.1.0.0070
(0) connect string is: defTdpName=MYSQL_RMG;SYNTAX=(ORACLE8_HOA, BASED_ON=ORACLE8,
(0) IDENTIFIER_QUOTE_CHAR="",
(0) CASE_SENSITIVE=CASE_SENSITIVE_QUOTE);BINDING=<navobj><binding><datasources><da-
(0) tasource name='MYSQL_RMG' type='ODBC'
(0) connect='MYSQL_RMG'><driverProperties/></datasource></datasources><remoteMachi-
(0) nes/><environment><optimizer noFlattener='true'/><misc year2000Policy='-1'
(0) consumerApi='1' sessionBehavior='4'/><queryProcessor parserDepth='2000'
(0) tokenSize='1000' noInsertParameterization='true'
noThreadedReadAhead='true'
(0) noCommandReuse='true'/></environment></binding></navobj>
(0) ORACLE GENERIC GATEWAY Log File Started at 2008-06-12T11:19:51
(0) hoadtab(26); Entered.
(0) Table 1 - PROGRESSNOTES
(0) [MySQL][ODBC 3.51 Driver][mysqld-4.1.22-community-nt]MySQL client ran out of
(0) memory (SQL State: S1T00; SQL Code: 2008)
(0) (Last message occurred 2 times)
(0)
(0) hoapars(15); Entered.
(0) Sql Text is:
(0) SELECT * FROM "PROGRESSNOTES"
(0) [MySQL][ODBC 3.51 Driver][mysqld-4.1.22-community-nt]Lost connection to MySQL
(0) server during query (SQL State: S1T00; SQL Code: 2013)
(0) (Last message occurred 2 times)
(0)
(0) [A00D] Failed to open table MYSQL_RMG:PROGRESSNOTES
(0)
(0) [MySQL][ODBC 3.51 Driver]MySQL server has gone away (SQL State: S1T00; SQL
(0) Code: 2006)
(0) (Last message occurred 2 times)
(0)
(0) [MySQL][ODBC 3.51 Driver]MySQL server has gone away (SQL State: S1T00; SQL
(0) Code: 2006)
(0) (Last message occurred 2 times)
(0)
(0) [S1000] [9013]General error in nvITrans_Commit - rc = -1. Please refer to the
(0) log file for details.
(0) [MySQL][ODBC 3.51 Driver]MySQL server has gone away (SQL State: S1T00; SQL
(0) Code: 2006)
(0) (Last message occurred 2 times)
(0)
(0) [S1000] [9013]General error in nvITrans_Rollback - rc = -1. Please refer to
(0) the log file for details.
(0) Closing log file at THU JUN 12 11:20:38 2008.
I have read the MySQL documentation and apparently there's a "Don't Cache Result (forward only cursors)" parameter in the ODBC DNS that needs to be checked in order to cache the results in the MySQL server side instead of the Driver side, but checking that parameter doesn't work for the HS connection. Instead, the SQLPLUS session throws the following message when selecting the same large table:
SQL> select * from progressnotes@mysql_rmg where "encounterID" = 224720;
select * from progressnotes@mysql_rmg where "encounterID" = 224720
ERROR at line 1:
ORA-02068: following severe error from MYSQL_RMG
ORA-28511: lost RPC connection to heterogeneous remote agent using
SID=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.0.0.120)(PORT=1521))(CONNECT_DATA=(SID=MYSQL_RMG)))
Curiously enough, after checking the parameter, the Access connection through the DNS ODBS seems to improve!
Is there an aditional parameter that needs to be set up in the inithsodbc.ora perhaps? These are current HS paramters:
# HS init parameters
HS_FDS_CONNECT_INFO = MYSQL_RMG
HS_FDS_TRACE_LEVEL = ON
My SID_LIST_LISTENER entry is:
(SID_DESC =
(PROGRAM = HSODBC)
(SID_NAME = MYSQL_RMG)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
Finally, here is my TNSNAMES.ORA entry for the HS connection:
MYSQL_RMG =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.0.0.120)(PORT = 1521))
(CONNECT_DATA =
(SID = MYSQL_RMG)
(HS = OK)
Your advice will be greatly appeciated,
Thanks,
Luis
Message was edited by:
lmconsite

First of all please be aware HSODBC V10 has been desupported and DG4ODBC should be used instead.
The root cause the problem you describe could be related to a timeout of the ODBC driver (especially while taking care of the comment: it happens only for larger tables):
(0) [MySQL][ODBC 3.51 Driver]MySQL server has gone away (SQL State: S1T00; SQL
(0) Code: 2006)
indicates the Driver or the DB abends the connection due to a timeout.
Check out the wait_timeout mysql variable on the server and increase it.

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hi,
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I'm going to assume that you have had experience with doing this in jsp. Watch for my comments by the **** asterisks *****. My skill level is best described as intermediate, so you'll probably want to heed replies from the more accomplished members of the community to improve upon this advice.
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<%@ page language="java" %>
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<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@ taglib uri="http://myfaces.apache.org/extensions" prefix="x" %>
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 to a method named getAll (in bean style) that returns a java.sql.Result.
 ***** You can see below how the columns are laid out with the h:column tags and how the header for
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 ***** The dataTable iterates over each value in the outputText tags contained in the column tags.
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 ***** Scroll down to see the MemberList bean code.
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<f:facet name="header">
<h:outputText value="Name"/>
</f:facet>
<h:outputText value="#{foo.name}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="bar Number"/>
</f:facet>
<h:outputText value="#{foo.ANET_NUM}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Group"/>
</f:facet>
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</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Classification"/>
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<h:outputText value="#{foo.CLASSIFICATION}"/>
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<h:column>
<f:facet name="header">
<h:outputText value="Sector"/>
</f:facet>
<h:outputText value="#{foo.SECTOR}"/>
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<h:column>
<f:facet name="header">
<h:outputText value="Address"/>
</f:facet>
<h:outputText value="#{foo.ADDRESS1}"/><f:verbatim> </f:verbatim>
<h:outputText escape="false" value="#{MemberList.ADDRESS2} "
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<h:outputText value="#{foo.CITY}"/><f:verbatim>, </f:verbatim>
<h:outputText value="#{foo.STATE}"/><f:verbatim>, </f:verbatim>
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<h:outputText value="Purchasing Contact"/>
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<f:facet name="header">
<h:outputText value="Purchasing Phone"/>
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<h:outputText value="#{foo.WORK}"/>
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</h:dataTable>
</h:panelGrid>
</h:form>
</body>
</html>
</f:view>
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package bar.vendor;
import bar.dbConnectionInfo;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.naming.NamingException;
import javax.servlet.http.HttpSession;
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import javax.servlet.jsp.jstl.sql.ResultSupport;
import java.sql.*;
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System.out.println(e.getMessage());
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conn.close();
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jimmyoneshot wrote:
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if ($Use_Title == 1)
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print "\n";
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<?php /*_____________________END___OF___THE___CODE______________________
get more code from http://www.fundisom.com/phparadise/
___________________________________________________________________*/ ?>

Never mind. The web hosting support people people told me I had my parameters wrong. It works fine now.

Fields missing from MYSQL table in Database Expert

I have just updgraded from Crystal XI to 2011 and I am still having issues with joining a mysql table to any other table.
Fields show up in field explorer but when I try to uise Database expert the only filed in the MYSQL table is the ID field.
Am I missing something here. Same problem with both versions. When I runa report using just the mysql table evrything works fine.

Typically if the field doesn't show up the CR can't figure out what type it is which means when we query the DB for the field type the client/server returns the wrong type or some type that CR doesn't support.
How is the field defined on the server?
Thank you
Don

How to insert data into the mysql table by giving as a text file

Hi,
Any one know's how to insert data into the mysql table by giving as a text file as the input in JSP.Please respond ASAP.
Thanks:)

At least you can try StringTokenizer to parse your text files. Or download a text JDBC driver to parse your files, for instance, HXTT Text(www.hxtt.net) or StelsCSV(www.csv-jdbc.com).

How to upload MYSQL tables to Linux server

I have been testing a PHP/MYSQL site on my own local apache
server, now am ready to upload to internet. My hosting company is
Papazilla.com which is an exact clone of GoDaddy.com.
I used the GoDaddy/Papazilla interface to create 3 tables
that my site needs.
Now I need to import records into the tables.
My tables were created on my computer using PHPmyAdmin. The
tables appear on my computer at this path:
C:\xampp\mysql\data\megazilladb
Each table has 3 files as listed here:
addurl.frm
addurl.myd
addurl.myi
cats.frm
cats.myd
cats.myi
sites.frm
sites.myd
sites.myi
I think the myd extension has the data, but I'm not sure.
GoDaddy/Papazilla says I can't just upload my complete
tables, I first have to create empty tables on their site, then
upload the data later.
I went to the GoDaddy/Papazilla interface and created 3 empty
tables named:
cats
sites
addurl
Then I went to the database management screen, selected the
IMPORT tab, and clicked the BROWSE button.
I browsed for the file "sites.myd"
Then I clicked GO
This brought up an error message:
#1064- You have an error in your SQL syntax, check the manual
that corresponds to your MySQL server version for the right syntax
to use near ||x|||www.classicboat.com|antique Boats For Sale? etc,
etc.
The data after the ||x||| above is the info in the first
field of the first record in the table.
The error message goes on to list the rest of the fields in
the record.
When I called Papazilla to get help, they said I can only use
the BROWSE button to upload files that end with the .SQL extension.
Why don't my files have that extension?
What can I try next to get the records uploaded into my
tables?
Thank you for your help

.oO(lazybones2)
>I have been testing a PHP/MYSQL site on my own local
apache server, now am
>ready to upload to internet. My hosting company is
Papazilla.com which is an
>exact clone of GoDaddy.com.
>
> I used the GoDaddy/Papazilla interface to create 3
tables that my site needs.
>
> Now I need to import records into the tables.
>
> My tables were created on my computer using PHPmyAdmin.
The tables appear on
>my computer at this path:
> C:\xampp\mysql\data\megazilladb
In addition to David's reply - you should never touch the
data directory
of the DB directly. It's completely under the control of the
server. You
don't really know which data is stored where and how (it gets
even more
complicated with InnoDB tables for example) and actually you
don't have
to know that, because these directories are not meant for
user access.
So better think of the SQL server as a black box, keep your
hands off
its data directories and use SQL commands for all actions.
Micha

Making a jtable auto updates itself from a mysql table

Pretty much what the title says. How can i auto update the jtable for every time my mysql table is updated in anyway? i am implementing this auto update function in my admin program which displays a list of users who are online etc. from the moment a user is offline/online or changes other details displayed in my jtable, i want it to auto update the jtable as soon as the actual mysql table has been updated with new data...
I was thinking of re doing the whole jtable i made and create a thread for that table that has a infinite while loop that keeps repainting the jtable with the new updated data from a mysql table query eg select * from table and store the data into a resultset which then gets transferred into a vector. Load the vector into the jtbale and their ya go�.
what you think of this approach? Is their a better way to do this?
at the moment, as soon as my application opens, the jtable views all the data from my sql table, however if it doesnt auto updates itself, cheers

i am implementing this auto update
function in my admin program which displays a list of
users who are online etc. from the moment a user is
offline/online or changes other details displayed in
my jtable, i want it to auto update the jtable as
soon as the actual mysql table has been updated with
new data...Well you can make some changes to make implementation easy
Ex: Create a table to keep a log of the changes in the system the dmin program read the log and replicate the changes as specified in the log on the table model.
When reading the log the admin program keep track of the sequence no of the last read log entry and it reads ony the entries which has larger seq numbers than the last read seq no
I dont think that it is critical to make this to be cloase to real time. An Update once a 1 or 2 secs should be sufficient.

CREATE TABLE for another OWNER/SCHEMA and in another TABLESPACE?

I am logged in a SYSTEM user. Now I want to create a table aaa. The owner of this table should not be SYSTEM but user KARL. and the TABLESPACE should not be SYSTEM but the (existing) TABLESPACE tttt.
As far as I know I can achieve this by issuing the following command:
CREATE TABLE KARL.aaa ( a INTEGER, .......) TABLESPACE tttt;
Regarding the TABLESPACE parameter I am not sure. Is it possible to allocate a TABLE for User Karl in a TABLESPACE which is not assigned to him?
Furthermore I have an additional problem.
I have a script with hundreds of CREATE TABLE + ALTER TABLE + CREATE INDEX DDL statements.
All of them are not prepended with Schema/Owner and an TABLESPACE clause.
Can I put somehow one single instruction at the top of the script which telles Oracle
to use
- OWNER Karl as Schema/Owner for all subsequent DDL stements
- TABLESPACE tttt as TABLESPACE for all subsequent DDL stements
In MYsql there is a "use <database>" statement. Is there soemthing similar for Oracle?
Thank you
Peter

Yes... you can do that. Take for example a user A who has a secret password that you don't wish to give out... like an application schema. User B needs to make tables/objects in schema A and you want to track what user B is doing. First setup Oracles Fine Grained Auditing and then grant "connect through" from user A to user B as follows:
SQL> create user b identified by abc123
2 quota unlimited on users;
User created.
SQL> grant create session to b;
SQL> create user a identified by abc123
2 quota unlimited on users;
User created.
SQL> grant create table
2 , create session
3 to a;
Grant succeeded.
SQL> alter user a grant connect through b;
User altered.
SQL> connect b[a]/abc123@a486
Connected.
SQL> show user
USER is "A"
SQL> create table a.my_proxy_table
2 ( c1 number
3 , c2 varchar2(50)
4 , c3 date
5 );
Table created.-----
See that I connected using the "username[proxyuser]" syntax. Also notice that user B is by proxy user A, illustrated by my "show user" command. The connect through can be granted/revoked as needed without divulging A's password to B. In addition, your audit tables or xml logs will track the fact that user B created table a.my_proxy_table.
Hope this helps,
John

Security on MySQL tables for MyISAM

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