I'm starting to use Visual Studio 2012 with integrated SQL Server Data Tools and although I watched 2 of microsoft's video's on getting started with SQL Database Projects I'm still having trouble understanding how to work with them especially since I'm new to db development.
Some questions:
What is the difference between Importing a database or adding a reference to the database?
What is the difference between Server Explorer and SQL Server Object Explorer tabs? In one I can browse the database through localhost\SQLEXPRESS.dbname and the other goes through localdb\Projects. At what point are these synchronized?
How do I change the Target Database Name under the Project's properties?
1) Importing a data base creates a project that includes all of the databases artifacts. Adding a database as a reference allows a project to access the database. So if you have a SSDT project and a c# project that uses the db, the c# project gets the reference. You could choose to create the SSDT project by importing an existing db.
2) SQL Server Object Explorer is part of SSDT and allows you do perform online SQL development including creating new artifacts, adding data to tables, and executing scripts.
3) To change the target database name for debugging purposed (where the database goes when you build/debug) change the target connection string in the debug tab of the properties menu of the project.
I've found this link to be quite helpful.
There are many differences between SQL Server Object Explorer (SSOX) and Server Explorer. Here's a couple:
SSOX allows you to launch refactoring operations
SSOX provides a logical view of your source code in Solution Explorer
In short, SSOX targets database development whereas Server Explorer is (I think) a generic hierarchical viewer for many server types.
Regards
Jamiet
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Just created a simple ASP.NET MvC project, to list blood pressure measurements. I opted to use SQLite as a database as it is (supposedly) embedded into the project, therefore eliminating the need for an external database. Which is expensive, and the reason why I chose to go with SQLite. That way I would only need to host the web app, which is free, if I chose the free tier, F1.
Publishing through VS2022 is successful, and the app shows correctly, except it shows none of the measurements. Which renders the app ((no) pun intended) useless, at least as a cloud app. I have done some research, and changed the publishingsettings a couple of times, but this is how they look right now.
Configuration: Release
Target Framework: net6.0
Deployment Mode: Self-contained
Target Runtime: win-x86
File Publish Options: None of the options chosen
Databases: Default Connection - Use this connection string at runtime:
=> Data source=bloodpressuremeasurements.db
Entity Framework Migrations: BloodPressureContext (name of the DbContext)
- Apply this migration on publish: NOT chosen, since it gave me an exception and publish failed
Site Extension Options: Install ASP.NET Core Logging Integration Site Extension
- NOT chosen
I also tried changing the option for the db file to Copy To Output Directory: Copy always.
That didn't change a thing. What am I missing?
The website works now as intended, with all the data shown. It looks like the problem stems from scaffolding read and write methods, which made Visual Studio 2022 pull in EntityFrameworkCore.SqlServer. Which is not what I wanted, since I'm using SQLite.
That in turn created some service dependencies under Connected Services, one of them being SQL Server something. It also appeared under the Publish menu, and seems to have caused the compilator to view the connection string as an SQL Server database connection.
I created a new app, and copied the code from the first one. I was careful not to scaffold, as I only need a Get method, to show all measurements. I need none of the other methods in CRUD, neither Post, Delete, nor Update. I will add new measurements by running the app again locally, and read the measurements from a CSV file (did that in the beginning). Then I will publish the app anew, with the updated SQLite database.
Im using Talend Open Studio fro Data Integration Version 7.1.1. I need to Connect Azure Database to data extract and data upload from Talend to our SQL databases. I have gone through below link to connect to Azure cosmos dbs.
https://help.talend.com/r/OgamG5JTIU2aMhx2HjGp8g/L1KG9WTDgOCS8RO9RzqIQw
But in my Talend DB Connection I can find the any CosmosDBconnection type or component. Even I tried to search in packages but didnt find. Could someone tell me how install or enable CosmosDBConnection or how to connect to Cosmos database using Talend.
As per Talend documentation -
tCosmosDBConnection
Creates a connection to a CosmosDB database and reuse that connection in other components.
tCosmosDBConnection Standard properties
These properties are used to configure tCosmosDBConnection running in the Standard Job framework.
The Standard tCosmosDBConnection component belongs to the Cloud and
the Databases families.
The component in this framework is available in all Talend products
with Big Data.
As you are using Talend Open Studio for Data Integration Version 7.1.1, you are not able to see these specific components in your palette.
Also, you might want to check out Project Settings -> Designer -> Palette settings and check out the components that are available and selected for your studio.
I have collected a bunch of data using my locally developed website. Now I need to analyze the data, but it seems like I cannot locate the .mdf file for the LocalDB database my website uses.
Looking at the data connection, it says myusername\localdb#abunchofnonsense.mydomainname.Models.UserDBContext.dbo. And the the connection string is data source=(localdb)\v11.0; initial catalog=mydomain.models.userdbcontext; integrated security=true.
Also, I'm using ASP.NET MVC, Visual Studio 2013, and Entity Framework if it helps.
It's probably quite confusing what I'm trying to do here. I collected some data and need to run logistic regression with it. Now the question is how can I connect Excel to this LocalDB so I can export the data I have collected?
You can import your LocalDB tables and data directly into Excel by the option Get External Data > From Other Sources under the Data tab in Microsoft Excel (2013 to be precise) - as the following screenshot shows:
A bit late, but perhaps someone can use the answer as I found this thread when running into a similar problem:
The problem is, that the localdb uses a different provider than the "normal" SQL-Connection. You need to use the "SQL Server Native Client" (in your case version 11) to connect. The provider should be installed with the localdb - if not you can find it here
To use in Excel, just choose
"From Other Sources"
- "From Data Connection Wizard"
- "Other Advanced"
- Choose your provider
- Enter the rest of your connection details
(not tested, but I see no reason why it shouldn't work): For existing connections you can edit the connection string and add/change "Provider=SQLNCLI11.1" (of course considering your installed version)
Source: I had the same problem in Installshield where you have to change the provider manually, so I just tried in Excel.
I am using the MS Entity Framework and Visual Studio 2012 in combination with the SQL Server Express. Now I want to use the EF in combination with an SQL Server Compact Edition database.
The design process will be model first.
I created an SQL CE database file in VS and started the design with a database model. I can create the .slqce file, containing the database schema definitions without any problems.
Actually my Problem is, that I can't find out how to execute this file on the database.
To test another approach, I created the database tables, columns... in the Server Explorer and used this to create an entity model. This worked well, but again, I don't know how to update the DB with changes, made inside the model.
What am I missing here?
You can use my SQL Server Compact Toolbox addin to create the database file and execute the script. You may need a modified template, as I describe here http://erikej.blogspot.dk/2013/02/fixing-entity-framework-designer.html
The web applications I am installing can run against either a SQL Server or Oracle database. I need to be able to determine which database the user has (client is suggesting a property file) and then dynamically tell InstallShield whichSQL script to run, I know I can figure out how to determine which database is installed. My question is how do I configure the Feature/Component and tell InstallShield which script to use.
I don't have any Oracle servers available to me nor do I have the Oracle Instant Client. If I did, it seems I'd use a Basic MSI project included in InstallShield to build an Oracle Instant Client MSI and add it to my installer as a setup prerequisite. Kind of odd but I guess they couldn't get IBM / Oracle to play nicely.
So let's say I had all of that. I'd create a Sql connection that supported both MS and ORA SQL and build it. I'd run the installer with logging on and use the SQLLogin dialog to browse to a SQL instance and an Oracle Instance.
Then I'd look at that logfile and see if there's any evidence of the built-in InstallShield SQL custom actions setting a property that indicates the type and/or version of database server that it connected to. Hopefully something will surface because I didn't find anything in the documentation.
Once I figured that out, I'd use the property in a conditional expression so that the SQL scripts only ran on the type of database server they were intended.