Date time query SQL SERVER - sql

Question

I have Date Column Order_Date In date Time format Isdat
14/05/2018 13:13:06 This is format) , I need To Extract Today's Order before 14:00 P:M 'O' Clock and in Second Column I want to extract order after 15:00 P:M i.e Time from 15:00 P:M till 23:00 P:M in SQL SERVER,
Date Is in 24:00 Hor Format.
In output Order_date Should be 'yyyy-MM-dd hh:mm:ss ' Format

Answer 1

Like the others have said, the first thing you need to do is fix your data; storing a date as a varchar is a bad design choice. Always use a data type that is representative of you data; stores dates as a date, numbers as an int/decimal, etc.
According to the [documentation] there is no style code for dd/MM/yyyy hh:mm:ss, however, a quick SQL as below told me that style code 103 does work:
DECLARE #date varchar(50) = '31/05/2017 19:12:56';
WITH N AS (
SELECT 1 AS i
UNION ALL
SELECT i + 1
FROM N
WHERE I + 1 <= 150)
SELECT I, TRY_CONVERT(datetime2(0),#Date,I) AS Conversion
FROM N
OPTION (MAXRECURSION 150);
So, firstly, let's fix that data of yours. So, let's add the new column in and drop your old one.
ALTER TABLE YourTable ADD OrderDate datetime2(0);
UPDATE YourTable
SET OrderDate = CONVERT(datetime2(0),YourDateColumn,103);
GO
ALTER TABLE YourTable DROP COLUMN YourDateColumn;
EXEC sp_rename 'dbo.YourTable.OrderDate','YourDateColumn','COLUMN';
Ok, now we've got rid of your awful datatype, and got your new column. Good.
Now, you want to specifically query time here; if you're doing that, ideally you want to separate the value of the time and date out. Using something like WHERE CONVERT(time, YourDateColumn) BETWEEN '14:00' AND '15:00' makes the query non-SARGHable. Thus let's use a couple of computed columns for that:
ALTER TABLE YourTable ADD OrderDate AS CONVERT(date, YourDateColumn);
ALTER TABLE YourTable ADD OrderTime AS CONVERT(time, YourDateColumn);
Now, to your question at hand: "I need To Extract Today's Order before 14:00 P:M 'O' Clock and in Second Column I want to extract order after 15:00 P:M i.e Time from 15:00 P:M till 23:00 P:M in SQL SERVER". honestly, this is non-sensical; putting different orders based on time in different columns? I have no idea what you mean here, I'm afraid, and I have no sample data or expected results to work with. Thus, instead, i'll show you how to return orders after 14:00 but before '15:00` on a specific date:
SELECT *
FROM YourTable YT
WHERE OrderDate = '20170515'
AND OrderTime >= '14:00'
AND OrderTime < '15:00';
If you need more detail than that, you have a lot of comments asking you for more detail; I suggest you have a look at those. :)