All Questions
2,133
questions
0
votes
2
answers
62
views
Why do I need to model a join table class?
I have two classes in C#:
public class Student
{
public string Name {get; set;}
public string Email {get; set;}
public List<Course> Courses {get; set;}
}
public class Course
{
...
- 9
0
votes
0
answers
29
views
Error "To change the IDENTITY property of a column, the column needs to be dropped and recreated."
I'm a beginner and i am having this error when i use the update-data base, after the migration:
"To change the IDENTITY property of a column, the column needs to be dropped and recreated."
...
0
votes
0
answers
33
views
switch from current encoding to specified encoding is not supported
enter image description here
import.sql((((
``
use `[D:\DBSD.CW2.14714.13786.12928\DBSD.CW2.14714.13786.12928\DBSD.CW2.14714.13786.12928\APPDATA\CAMBRIDGE.MDF]
--generating sample XML
select top 2 ...
0
votes
1
answer
110
views
Syntax error in FROM clause C# and MSAccess
I have a program that fetch data from database. I have two different databases (MSAccess and Oracle). I kept receiving "Syntax error in FROM clause" if I set the connection to MSAccess but ...
- 43
0
votes
0
answers
46
views
Is there a way to return data from a database call as an general object rather than a specified type, without creating a new class
I have a function that is trying to return a list of all transactions from the database. To do this it needs to retrieve all the data from TransactionItems, and then join that to the data retrieved ...
- 1
-2
votes
1
answer
30
views
Error when takling a user input and seeing if it is in an Sql Database [closed]
I'm trying to develop a simple Clock-in/out system where the user inputs their details and it will check if they are in the database before proceeding with the next functions.
this is the code i have ...
0
votes
1
answer
53
views
how to generate .bak file from my ips .net core project?
I have created a project using .NET core and now I want to generate a database .Bak file using, and I just don't know how or if it's even possible or not.
I just want some other opinions and insights.
0
votes
1
answer
95
views
I got this error in my code. How should I clear this?
This is my code:
public MyResponse InsertTeam(MyRow Row)
{
try
{
var connection = SqlConnections.NewByKey("Cred");
/* Getting Insert to LogBook table */
...
- 1
0
votes
1
answer
51
views
EF 6 Update query and Where clause with list of integers comparison
In EF 6.0 I want to update some records based on a WHERE filter. Records which I recognize from a list of integers of ids. The problem is it sees the id list as an nvarchar "61, 62, 63" and ...
- 415
0
votes
2
answers
465
views
Deletion and Archiving of old data in Microservice system
I am preparing to implement delete and archive the old data in the current system.
More information about our system.
Architecture: We apply Microservice architecture, Framework: .Net, and Database: ...
- 35
0
votes
0
answers
152
views
Clear Tables in DB for unit Tests
I am using EFCore and xUnit for my unit tests. I've set up a DB with mock data. However, I want to check in a test if an insert in an empty DB also passes. For that I need to delete/truncate the db in ...
- 458
0
votes
1
answer
524
views
Get more than 1000 rows from a SQL Server SELECT statement
I want to select more than 1000 rows with a SELECT statement. There are about 2000 rows and I want them in one SELECT. But I only get 1000 rows.
This is my code:
string connection_sql = String.Concat(&...
- 519
-1
votes
1
answer
70
views
Cancel sale and remove from sale history
I have a post sale application using sql dbase, it is running fluently my issue with canceling sale and remove entry from sale history and database. the following code suppose to do that but it does ...
- 1
0
votes
2
answers
63
views
Separating SQL database record insertion and program logic
Suppose I have the following code:
private class DataAccess
{
private static string connectionString = ConfigurationManager.ConnectionStrings["DatabaseServerInstance"]....
- 110
1
vote
1
answer
389
views
How Do I use C# System.Data.Common.DbBatch?
I feel like I'm missing something completely elementary here. How do I use the C# DbBatch class? I'm working on optimizing a client's SQL commands and they use both Oracle and SQL Server. This ...
- 175