How to display message the record already exists

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SQL

create proc data
@product varchar(50)

as begin
if exists(select product from Tablename where product=@product)
select '1' as status

else
insert into tablename(product) values(@product)
select '2' as status

end

i wrote procedure like......how to write c# code for displaying message "record already exixts"......

Posted 21-May-15 0:27am

vemsoft

Updated 21-May-15 1:35am

Frankie-C

v2

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Comments

Arun Kumar_Tech 21-May-15 6:36am

use cmd.ExecuteScalar(); to get the output from SQL, use if loop and check if it's 1 "Already Exists" else and so on....

Andy Lanng 21-May-15 7:42am

I use Raiserror (yes it is one 'e') in my sql and catch the exception in code. I control my transaction scope in code so this might not be your best option

jaket-cp 21-May-15 7:51am

Can you show the c# code you have tried.
Also does the product field have a unique constraint put on it?

Abhipal Singh 21-May-15 7:58am

Instead of '1' or '2' you can write your string 'Record already Exist' or 'Record Inserted' in your select statement if you just want to display it on UI.

create proc data
@product varchar(50)

as begin
if exists(select product from Tablename where product=@product)
select 'Record Already Exist' as status

else
insert into tablename(product) values(@product)
select 'Record Inserted' as status

end

However, if you want to use that status in your code then I would suggest, try to define a proper enumeration in C# code and map your SP outputs in the enum.

F-ES Sitecore 21-May-15 8:06am

We don't know how you're calling the SP so your question is impossible to answer.

vemsoft 22-May-15 0:59am

i am using three architecture and getting thar status in data datble........
please help me how to compare tha status and display message "record already exist..."

F-ES Sitecore 22-May-15 3:33am

Are you using ado.net? Entity Framework? LinqToSql? nHibernate? Something else? The answer to your question depends on what you are using to call the SP.

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Lucifier Rocks · Answer 1 · 2015-05-21T02:10:00

Solution 1

You can use an output parameter and set value for the same

Posted 21-May-15 2:10am

Lucifier Rocks