Get current month record using LIKE key word - sql-server

Question

I try to get selected the current month data by using SQL Server LIKE but it not get the any result. My when I run same code in my SQL it get the original result. What is error of my query? This query I want to run in SQL Server.
SELECT EnrolledID, Date, Time
FROM dbo.view_attendance
WHERE Date LIKE '2019-08%'
ORDER BY Date,Time;
Date in the SQL Server database date is something like that 2019-08-14 00:00:00.000.

Answer 1

Even though you have asked for a LIKE, I would recommend using the following format:
SELECT [EnrolledID]
, [Date]
, [Time]
FROM dbo.view_attendance
WHERE [Date] >= '20190801' and [Date] < '20190901'
ORDER BY [Date], [Time];
Although there is no syntax error in the case of using LIKE over DATETIME columns, I would recommend using LIKE only when trying to parse STRING values, in search for a certain pattern.
LIKE will not work with DATETIME columns and will not return results. If your column is of type DATETIME then I recommend using the above method.

Answer 2

MySql does implicit conversions between data types in expressions like your case:
Date LIKE '2019-08%'
so MySql converts Date to varchar and the expression returns a valid result because both operands are treated as varchars.
You can find more here: https://dev.mysql.com/doc/refman/8.0/en/type-conversion.html
SQL Server does not do this, so you must explicitly do the conversion or use a function like:
WHERE FORMAT(Date, 'yyyy-MM') = '2019-08'

Answer 3

if [Date] column is DateTime Type, try this :
declare #currentMonth int = datepart(MONTH,GETDATE())
declare #currentYear int = datepart(YEAR,GETDATE())
SELECT [EnrolledID]
, [Date]
, [Time]
FROM dbo.view_attendance
WHERE DATEPART(year,[Date]) = #currentYear And DATEPART(MONTH,[Date]) = #currentMonth
ORDER BY [Date], [Time];
or this:
SELECT [EnrolledID]
, [Date]
, [Time]
FROM dbo.view_attendance
WHERE DATEPART(year,[Date]) = datepart(YEAR,GETDATE()) And DATEPART(MONTH,[Date]) = datepart(MONTH,GETDATE())
ORDER BY [Date], [Time];