I am using SQL server and stored procedures and I want to do a simple SELECT.
In my table I have a DATE format, which shows correctly in the database as yy-mm-dd.
When I call the stored procedure in my C# app, I also get a time value for every row (11/14/1987 12:00:00 AM).
How can I remove the time format?
Here is my select stored procedure:
ALTER procedure [dbo].[Employee_GetAllEmployees]
AS
BEGIN
SELECT * FROM
dbo.Employee
END
If you want only date then use convert() :
SELECT emp.*, CONVERT(DATE, date_col) AS New_date
FROM dbo.Employee emp;
The SQL Server date data type maps to .NET DateTime, which includes a time component. For formatting purposes in your application, use ToString according to your desired display format.
var formattedDateString = dateTypeField.ToString("yyyy-MM-dd");
Although you can format the value in T-SQL and return a string instead, burdening the database server for presentation formatting limits performance and scalability and is not considered a best practice.
Related
I am working on a website in asp.net. I am getting a date from a web page and then depending on the user input I want to get results from SQL Server database (using stored procedures).
Problem is that I am getting date only from UI in this format 2016-10-08 which is of type string. But in the database, I have a column which is of type datetime in this format 2016-10-08 17:38:00.000.
I am using this query to search but it does not work.
select *
from table
where acceptedDate like #sDate+ '%';
where sDate is input parameter for stored procedure. Please help. thanks
Don't pass dates as strings. Pass them as DateTime.
The .Net DateTime maps directly to SQL Server's DateTime. All you have to do is parse the string to a DateTime struct in your .Net code and pass it as a parameter to your stored procedure.
To search for a specific date and ignore the Time portion of the DateTime, better use >= and < in your sql:
select *
from table
where acceptedDate >= #Date
AND acceptedDate < DATEADD(DAY, 1, #Date);
If you only want compare with day level and ignoring the hours part, you can use DateDiff function.
Pass d or DAY to interval parameter of DateDiff
For example:
DECLARE #sDate VARCHAR(100)='2016-10-08'
IF ISDATE(#sDate)=1
BEGIN
select *
from table
where datediff(d,acceptedDate,#sDate)=0 --same day
END
ELSE
PRINT 'Invalid date format!'
I have a stored procedure which input is from the type datetime. i.e. I transfer the input
2014-01-13T16:55:03.370 ,while running the stored procedure from the sql server.
Now I want to execute a stored procedure from the application.So I tried to use parameter having System.DateTime type.Looks like it is not corresponds to sql datetime.
Which type should I use for that?
UPD.
I didn`t get the answer for my question. So I`ll try to make my question more clear.
In SQL SErver database tables the values of the type datetime are saved.I am writing a stored procedure which looks for this values .I mean I need to get a parameter from the user of the for yyyy-mm-ddThh:mm:ss:.mmmm
from MSDN:
GetDate() is a inbuilt function in sql, for c# you can use follwing:
DateTime CurrentDate;
CurrentDate = Convert.ToDateTime(DateTime.Now.ToString("dd-MMM-yyyy"));
I guess you can pass this variable through to the procedure call parameters?
or, search the site again and read: Function that creates a timestamp in c#
Here you can find samples on data time conversions between SQL and C#, depending
on the date data types you use
I am doing a project in school, I have to create a website tool for salesmen to fill what they have done during the day, i.e. amount of quotes, quote sum, orders, order sum etc. I am using Visual Studio 2010, ASP.NET with C# with a SQL database.
I have to create a table with different columns, that I know how. But what I need is to have a column called Date and it has the datatype date. I need it to be filled automatically without having to input it manually. The same date that the new information was added. I have searched for solution in google and other places but I think I am searching with the wrong keywords, hopefully you can help me.
The format I wish for the date to be is DD-MM-YYYY
When you look for SQL default date on Google, the second result you get is this one.
In there, you have a default date example:
CREATE TABLE Orders
(
O_Id int NOT NULL,
OrderNo int NOT NULL,
P_Id int,
OrderDate date DEFAULT GETDATE()
)
using the DEFAULT keyword.
Create a sql datetime column in the database, and specify a default value of GetDate() or GetUtcDate() depending on which you want. Format is irrelevant on the input side; you will have to use a formatter on the select side (or in your c# code).
You can set the default value for the column as current date time..
create table tblname (
fieldname datetime default getdate()
)
Also see this question
Add default value of datetime field in SQL Server to a timestamp
You can use one of this to insert in the table instead.
String s = System.DateTime.Now.ToString("dd.MM.yyyy");
DateTime now = System.DateTime.Now;
The second one would be your choice because the type specified in yur table is Date.
If don't want to be setting it from the app, specify which database you are using to get a specific answer.
I need your help in small problem, I have a column (data type timestamp) in SQL Server 2008.
Now I want to show this timestamp value in ASP.Net C# app as string. Is there any way to do that?
I tried it using regular data fetching in ASP.Net but it produced System.byte[] as output rather than actual value. In SQL Server Management Studio values are represented as 0x000000000000B3C0.
One option is to change it to the Date, while getting from the database. Like:
SELECT timestamp = DATEDIFF(s, '19700101', yourTimestampColumn)
FROM yourTable
I don't know if i catch you, but in sql you can cast timestamp value to datetime then to varchar like this:
declare #val timestamp = 0x0000AAE200B29565
select cast(cast(#val as datetime) as varchar(max))
I am using Entity framework and have 1 field in database AddedDate that is DateTime and not null, so I need to pass DateTime value.
But the problem is I have to pass DB Server datetime. How can I manage in this sceario or how can I get DB Server datatime to pass this.
I need to some unique solution, because I am this on many forms.
Edit: I need DB server Datetime upon insertion/updation in my application so that I can pass to entity framework object.
Thanks
Since you are using entity framework, you can do something like this:
var dateQuery = yourDbContext.CreateQuery<DateTime>("CurrentDateTime() ");
DateTime dateFromSql = dateQuery .AsEnumerable().First();
In general, if you use the entity framework and you use DateTime in a field, it will automatically do the back/forth conversion for you, just the same way it does so for integers, doubles etc.
Unless you mean something special, i.e., a char[40] field that must be filled with a DateTime value of a particular format.
You can get database server date and time by running SELECT GETDATE()) script.
Consider you have a table with 4 colums - the first 3 being strings and the last datetime, You can solve your issue by issueing INSERT SQL like this:
INSERT INTO myTable VALUES ('x', 'y', 'z', SELECT GETDATE())
Can't you use a stored procedure so you can get DB server Datetime very easily.
Just use getdate() in your query. For example:
INSERT INTO your_table (AddedDate, ...other columns) VALUES (getdate(), ...other values)
This basically asks the server to insert its own current date into the field; there's no need for you to retrieve it locally.