I want to build a console application with ado.net where I get a table from the database and convert it to a string output in a file. I want to do this with stringbuilder. But before I fetch the data …
Tag: ado.net
Member’s books in possession in Library System
Hello I am currently working into a library system and I do want to view how many books are in possession of a specific member. I want to add a copies to student whenever I issue a book to them. I have tried: but it doesn’t insert into members row, instead it shows I have also tried: But doesn’t work
Firebird with .net driver – drop table if exists
I’m new to Firebird and I’m testing a few things to check out the differences between Fb and SQlite (and the .net driver). I am trying to do a drop table if exists followed by the creation of a table. In Sqlite I am able to do this by: However in Firebird the same query fails. I’ve read that this
Create SQL Server table from user-defined class [closed]
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed last month. Improve this question I am creating a mini-ORM to learn reflection better in C#. Also I want to use Native & Pure C# and do
System.Data.SqlClient.SqlException (0x80131904): Invalid column name
I am getting this error while trying to execute the attached code. Please help. I am getting values as list array in controller method successfully but when I try to read data from sql database I am getting error. Controller method: Execption:- Answer Since you are using inline SQL, every value within dogCSV string that’s comma separated needs a single
Missing AddWithValue from DbCommand.Parameters
I am building an sqlwrapper to handle both MSsql and Sqlite, I have no issues using the generic dbconnection, dataset and dataadapter so far, but with dbcommand parameters.add is the only option. I’d like to use parameter.addwithvalue like sqlcommand and sqlitecommand have, but I am unsure how to implement it. For example here is my sqlitefactory: Here is my implementation:
SQL server Nvarchar parameters
I Have created an SP to search against many tables in the db based on string sent form ado the Vb code and the SQL SP is : As you can see I have declared argument in VB as Nvarchr and SQL parameter @SearchKey as Nvarchar also if I send english data in @SearchKey search returns correct data, but if
How to fill Dataset with multiple tables?
I’m trying to fill DataSet which contains 2 tables with one to many relationship. I’m using DataReader to achieve this : But I’ve got only one table filled up. How do I achieve my goal – fill both tables? I would like to use DataReader instead DataAdapter, if it possible. Answer If you are issuing a single command with several
Add WHERE clauses to SQL dynamically / programmatically
How can I add search condition to SQL Stored Procedure programmatically? In my application(C#) I’m using stored procedure (SQL Server 2008R2) ALTER PROCEDURE [dbo].[PROC001] @userID varchar(20), @…
How to get Database Name from Connection String using SqlConnectionStringBuilder
I do not want to split connection strings using string manipulation functions to get Server, Database, Username, and Password. I read the following link and read the accepted answer, I found that is the best way to get username and password out from connection string, but what about Database Name? Right way to get username and password from connection string?