MySQL ODBC configuration - mysql

I have managed to make my Access work as a frontend for MySQL.
I have managed to make it work through connection string but because some specifics in code i would like to save DSN configuration as user DSN.
I have ran into one specific problem. I need to use option=3 inside my connection string because without option=3 i get error: The Microsoft Jet database engine stopped the process because you and another user are attempting to change the same data at the same time.
If i include option=3 in my connection string everything works well. The thing is, in Mysql Connector/ODBC data source configuration i do not know which checkbox/option represents option=3

The doc about this is here : Connector/ODBC Connection Parameters
option=3 looks deprecated as specified in this answer :
Option=3; corresponded to FLAG_FIELD_LENGTH (1) +
FLAG_FOUND_ROWS (2)
It looks indeed deprecated as in the doc I can't find any reference to FLAG_FIELD_LENGTH
We can thus assume that the flag you really need is FLAG_FOUND_ROWS
According to the doc, the GUI option for this flag is
Return matched rows instead of affected rows

Related

Unable to resolve valid table in PhpStorm

I'm getting unable to resolve table errors appear in php files containing SQL querying valid tables.
If I Ctrl + Enter over the query, then I get expected results in the DB console, and if I expand the database in the DB explorer tab then I can see the tables.
It's not affecting code execution, but it's annoying because it catches my eye when writing code, and it masks real SQL errors.
I've tried refreshing the database connection, and I've verified that the php tab is connecting to the correct database.
In 2017.2 I had to go to
Settings > Languages & Frameworks > SQL Resolution Scopes
and add my project and database link in there to get it right again.
Try re-creating DB connection from scratch (delete existing one and create it again).
Thinking of possible reasons ... I can think of this scenario:
working with project in current stable version (currently 2016.1.x);
trying EAP build for next version (2016.2 at this moment) on this project and make some DB-related changes there (even simple syncing DB);
going back to stable version (2016.1.x) .. and because new version uses newer file format/versioning for DB-related data (cached DB structure etc) IDE may start ignoring "unknown/newer" format for such data and instead of throwing appropriate warning it just "silently" throwing "unresolved table" message.
No other ideas.
I was getting what OP was getting, and the problem was my DB Server was MariaDB and i had MySQL selected as the SQL Dialect.
See File > Settings: Languages & Frameworks > SQL Dialects.
Faulty error pollution DRIVES ME NUTS TOO!
If I start having SQL resolution issues, I will check my resolution scopes (settings -> Languages & Frameworks -> SQL Resolution Scopes).
Generally I have the most issues when my project mapping is set to 'All Data Sources' by default.
The following steps always fixes it for me:
Click the Project Mapping Dropdown
Uncheck the global 'All Data Sources' setting (required to make other selection available)
Click the drop down arrow for your Database connection
Check 'All Schemas' (Or Specific Tables)
Click OK to close the settings window
Your false resolution errors should disappear after the next parse cycle.
You aren't limited to applying the above steps to just one DB connection, you can do it for all connections in your project.
Sometimes adding a custom resolution scope will work as well, but it is hit or miss for me.
Click the plus sign (top right)
Select the file you are working on and hit 'OK'
Select the 'Resolution Scope' column
Deselect 'all data sources'
Select the specific DB resources you want
Reconnecting to the DB never works for me.
Specifying the table works well... but it can become very cumbersome as the project grows.
I have also run into an additional situation where PHPStorm would only resolve some of my queries, no matter what scope resolution settings I used. However, after I attached a console to my file, they resolved just fine.
(Search for 'Attach Console' in Help | Find Action. You can also add it to a 'Quick List' or Keymap it.)
Although this answer is specifically for phpstorm, I had this same issue in IntelliJ and none of the above fixes worked for me. I had my scope added, everything was active. I could query the database in the console window perfectly fine, and I was totally stumped.
Eventually, I noticed some text in the database panel that said 0 of 4 in tiny text. It looked like this:
Upon clicking on the 0 of 4 text, I discovered there were no schemas added to the connection, even though a default database was set upon making the connection originally. Going to that page allows you to add schemas. Be sure to either select "All schemas", "Current schema", or the specific database that you want to use with your connection.
Changed dialect to MariaDB on global and project level.
OR
To dismiss this error in PHPStorm versions before 2017 which have no SQL Resolution Scopes option:
Go to File
Go to Settings...
Go to Editor and then Inspections
In SQL chapter uncheck Unresolved reference
Click Apply and then OK
Adding database name before the table name worked in my case.
For instance, instead of writing SELECT * FROM Client, put SELECT * FROM database.Client.
I will add another answer, because for me, it was a completely different (embarrassing) cause:
I somehow forgot to add the database name in the data sources general settings (where you also set the host, user and password).
In my case, I have clicked the right button in the SQLScript and change the Dialect to "Generic SQL". It worked for me.
I solved this problem as follows:
CTRL + SHIFT + F10
new query console
Write a selection query to the database, for example:
SELECT * FROM user WHERE user_email='$email' AND user_password='$password'
Enter your code page and click on the table name in the query
ALT + ENTER
run query in console
Select the console you created
First, you need to check the Schemas tab, and make sure you've added the database.
If the unable to resolve table error stills appears, there're two options to fix this:
1.You can edit the properties of the Data Source and add the name of Database, then you can see that select * from table works well.
2.On the other hand, you can also use sql like this select * from database.table. It works for me.
By the way, in many situations, autocomplete can be very useful.
[PHPSTORM]I solved this problem by setting
Languages&Features
SQL Dialect
adding your current file into path and modify its SQL Dialect as a server you are using.
NOTICE!!!!! mine is MySQL but it is exactly MySQL causing problems, after switching into [generic SQL] PROBLEM SOLVED!!!

ssis oledb source, as400 parameter not found

I'm using ssis 2008 and I'm trying to get data from an as400 database.
I have a Data Flow Task, and inside it, I have an Oledb Source and in there, I have Data access mode to Sql Command, and I have a query:
select *
from table1
where name = ?
Then i click on the Parameters button and set "name1" for the name of my parameter.
When i ran the ssis, i got error:
Error: The SQL command requires a parameter named ""00001"", which is
not found in the parameter mapping.
So I changed the parameter name to ""00001"" and the ssis worked fine.
Now, the problem is that this same ssis needed to be ran on another as400 server, and older one, and when it ran it showed error:
Error: The SQL command requires a parameter named "", which is
not found in the parameter mapping.
So, now the other server requires a different parameter name.
Is there another way of doing this process using something different than Oledb Source in order to avoid the problem?
What can I do?
We are using sql 2012 and a as400 system and we use a ODBC source for the as400. For our setup it seems to be working. So try the ODBC.
Well, this seems to be an as400 bug, as seen here : [link]http://social.msdn.microsoft.com/Forums/en-US/sqlintegrationservices/thread/5d6ef4f9-1a67-45d1-8a49-eb08becf1408/
On that thread a user says: "This bug is directly related to IBMDA400 from IBM Client Access Tools. There is a bug with the driver passing a parameter to the AS/400. I have proved this out using a third party driver from HiT Software. Passing 00001 is correct using their drivers."
So as I see, it wont matter the method you use, what's need to be done in order to get it working is to pass the parameter with name that AS400 requires. If the parameter with the correct name is passed then the query will work correctly.

Local Load Testing: The load test results database could not be opened

I am creating some Load tests using VS2012. I can run the tests using a StorageType of "None", but when I change this to a StorageType of "Database" I get the dreaded error
The load test results database could not be opened. Check that the
load test results database specified by the connect string for your
test controller (or local machine) specifies a database that contains
the load test schema and that is currently available. For more
information, see the Visual Studio help topic 'About the Load Test
Results Store'. The connection error was: An error occurred while
attempting to create the load test results repository schema: To
create the database 'LoadTest2010' your user account must have the
either the SQL Server 'sysadmin' role or both the 'serveradmin' and
'dbcreator' roles
I have created a database on a non local copy of SQL called LoadTest. When I test the connection from the SQL Tracing Connect String dialog I get a success.
I have created a SQL user that has the Server Roles of dbcreator, public, serveradmin and sysadmin. The user has a User Mapping to the LoadTest2010 database that was created from the loadtestresultsrepository.sql in the VS2012 IDE directory. On the database the user has the Database role memberships db_accessadmin, db_datareader, db_datawriter, db_owner.
In the Owned Schemas i ticked on the db_datareader, db_datawriter, db_owner and db_securityadmin howver these have now gone to a blue square instead of a tick when displayed.
So what's going on? Is Visual studio trying to create the database or is something else the issue?
I am not using TestControllers or TestAgents I am simply using a local run.
The answer was simple. I was setting up the connection string in the "SQL Tracing Connect String" instead of clicking the little "Manage Test Controller" icon at the top of my load test window and setting up the connection string from there.
Now I'm off to remove some of those superfluous permissions I created on that SQL user :)
Edit:
The SQL Connection String is NOT stored in the loadtest files. The setting seems to be PC specific so I had to change it on the build server - in one loadtest file (address.loadtest) as shown, then all the other loadtests adopt the same connection string.
I am using Visual Studio 2013 and had this error as well, but for a different reason. It's not entirely clear when setting up a load test for the first time that it will attempt to save the results to a database by default. I didn't realize it was trying to save results to a database until I got the error on my first run attempt. Furthermore, in the load test wizard, there is no screen to configure the database settings or create the database schema for that matter.
I found this article on MSDN which helped me solve the problem.
How to: Create a Load Test Results Repository Using SQL
https://msdn.microsoft.com/en-us/library/ms182600%28v=vs.120%29.aspx?f=255&MSPPError=-2147217396
Basically, it explains that you first need to run a script to create the load test repository schema. Once this is in place on your SQL instance is (it could be anywhere you like), then you can point your load test to this database and save your results there.
For me after I had set database connections and all the test results was still not writing to the database.
I forgot to change my storage type in the properties section of the runsettings.
The property is called 'Storage Type'
Storage Type : change it from None to Database

LINQ to SQL Connection String

I've used LINQ to SQL in a unit testing project to mock some test data. I've changed the database name today and consequently the LINQ to SQL code doesn't work any more. I get the following error 'System.Data.SqlClient.SqlException: Cannot open database "XXX" requested by the login. The login failed'. I've tried changing the Connection property on the DataContext in the designer but this doesn't work. I've tried changing the connection string in app.config as well but this doesn't work as well. Is there anything I missing here?
I managed to solve this problem: In opened up the .dbml file in the XML editor (rather than the designer) and found a Database element with the old database name referenced. Once I changed this then everything was OK.

textboxes in Datarepeater dynamically 'databound'

I need to know if it is possible to dynamically bind a textbox residing within a datarepeater to a 'dynamically' created BindingSource. I am using VB.net. The database I am using is a MySQL database.
I have to use the connection dynamically due to the fact that the database my not permanently reside on the same server.
[edit]
ok, so it seams that I am a dolt when asking questions. The app that I am making is not web based. it is a simple (I hope) app that connects to a MySQL database, accesses a table so I can edit/view it. Current setup is using the Add DataSource wizard. I have successfully connected to the dbase dynamically using the mysql connector dll but without the textboxes set at design time to a datasource, I am unsure on how to 'link' them via the datarepeater.
Your connection string should be defined in your Web.Config, and if you move your database to a different server, it's just a matter of modifying the web.config entry. As long as you keep the connection string name the same, the BindingSource object will pick up the new value from the config.edit
In truth, the same concept should apply here as it does in the web app answer listed above.
All of your data objects should be hard-coded, and it's just the connection string (which you'll have to either ask the user for, or push out as update when the DB moves) which will get modified.
For example, create a App.Config file in your project. Have one of your configuration values be the connection string. This config value will be where you go to get the connection string whenever you need it. Then your wizard will be there to allow users to easily modify the connection.
then look in app.config
the conenction string should be there.
If it is not then you should put it in here as you can change this file at any time and not have to recompile your app.