I am trying to grant and revoke server roles for user id picked from a table.
I am using the following query to insert a row from master table to another table whenever the expiry date approaches, however the command is not inserting any rows into the slave table.
Insert into tbl2(userid, role, startdate, expirydate)
Select userid, role, startdate, expirydate
from tbl1
where expirydate = Dateadd(day,0, getdate())
If I use <= or >= the above query is working but that is not helpful when we have multiple rows in tbl1.
It's because GETDATE() returns a DATETIME value, and you're likely comparing it to a DATE, so you're effectively comparing values like this:
SELECT GETDATE() AS DateTimeValue,
CAST(GETDATE() AS DATE) DateValue;
Output:
DateTimeValue DateValue
2017-10-04 10:34:35.023 2017-10-04
By default, a DATE will have a time set to midnight if comparing to a DATETIME, like: 2017-10-04 00:00:00.000.
These values aren't going to be equal with a time included, so use CAST or CONVERT to get a DATE without the time:
where expirydate = Dateadd(day,0, CAST(GETDATE() AS DATE))
Although, it looks like you don't need that Dateadd on the WHERE clause, so remove it unless this is edited / sample code. So maybe edit it to this:
where expirydate = CAST(GETDATE() AS DATE)
Reference
GETDATE (Transact-SQL)
Returns the current database system timestamp as a datetime value without the database time zone offset. This value is derived from the operating system of the computer on which the instance of SQL Server is running.
Related
I have 2 dates column, one is current date and the one is user define date, I have to display the specific row when the user define date is 2days greater than current date.
In the below code I try to display the row, when both dates are equal. But I don't know how display the row in sql.
I have following Columns,
Rid
DateTime (User define date and time)
Reminder
Description
CRDateTime (current date and time)
I have to set 3 condition.
if both dates are equal means that should be display,
if DateTime is 2 days before CRDate means I have to display that row,
if DateTime is 1 day before the CRdate means I have to display that row.
declare DateTime as datetime1;
select RId if CAST (DateTime as date) =CAST (#CRDateTime as date)
The IF...ELSE statement is a control-flow statement that allows you to execute or skip a statement block based on a specified condition.
For example:
IF Boolean_expression
BEGIN
-- Statement block executes when the Boolean expression is TRUE
END
ELSE
BEGIN
-- Statement block executes when the Boolean expression is FALSE
END
If you want to check something in your SQL Statements you should use the where clause.
It could be looking like:
SELECT * FROM `[YOUR_TABLE_NAME]` WHERE `DateTime` = `CRDateTime`
If you want to check the date in a 2 Day decade you can use the SQL DATEADD Function.
It lookse like:
SELECT DATEADD(day, +1, '2017/08/25') AS DateAdd;
Resault of this code is 2017/08/26
In your case it looks like this:
SELECT RId where DATEADD(day, +2, DateTime) = CRDateTime
--- EDIT SECTION: ---
EDIT 1:
All in one you can use this code here:
SELECT RId WHERE
`DateTime` = `CRDateTime` OR
DATEADD(day, +1, DateTime) = CRDateTime OR
DATEADD(day, +2, DateTime) = CRDateTime
As I understand you basically want to show all the records with in range of 2 days.
SELECT RId, DateTime, Reminder, Description, CRDateTime
WHERE CRDateTime BETWEEN DATETIME AND DATEADD(day, +2, DateTime)
Or you may try this
SELECT RId, DateTime, Reminder, Description, CRDateTime
WHERE DateTime BETWEEN DATEADD(day, -2, CRDateTime) AND CRDateTime
The question isn't clear. I assume the actual question is how to filter a table's rows between two dates.
Filtering in SQL (in any product) is the job of the WHERE clause, not IF. You can use the BETWEEN clause to select values in a range.
If both the table field and the query parameter are date variables, the query is easy :
CREATE TABLE table1
(
RId int PRIMARY KEY,
DateField date,
INDEX IX_Table1_Date (DateField)
)
declare #dateParam date='20190801';
SELECT RId
FROM table1
WHERE DateField BETWEEN dateadd(day,-2,#dateParam) AND #DateParam
This query will take advantage of the IX_Table1_Date index to speed up the search. Typically, applying any kind of function on a table field prevents the query engine from using any index that includes that field simply because the values stored in the index have no relation to the function's result.
If you use the date parameter to be the current date, just assign GETDATE() to it.
declare #dateParam date=GETDATE();
If the field isn't a date, you can cast it to date and still get a fast range query, because the query engine is fast enough to convert the cast to a range query.
SELECT RId
FROM table1
WHERE cast(DateField as date) BETWEEN dateadd(day,-2,#dateParam) AND #DateParam
If DateField is not a date-related type, eg it's a varchar, a) that's a serious bug and b) the server won't be able to use any indexes.
Casting the parameter values won't affect performance as they actual values are calculated before the query starts executing. The query becomes quite noisy though :
declare #dateParam datetime='20190801'
SELECT RId
FROM table1
WHERE cast(DateField as date)
BETWEEN dateadd(day,-2,cast(#dateParam as date)) AND cast(#DateParam as date)
That's why it's better to use the correct type for parameters
I have a table which has list of some events with dates. I am trying to write a stored procedure that will return only the upcoming events.
I have written the following query in the stored procedure:
SELECT *
FROM Events
WHERE tDate >= (select CAST(GETDATE() as DATE))
But this is not returning correct result. This is also showing results that have dates less than current date. How to write a query that will return all the events that have date equal or greater than today's date.
Edit: Dates that have been entered on the table have the format yyyy/dd/mm and getdate() returns date in the format yyyy/mm/dd. I think this is causing the problem. Dates that have been entered into the table has been taken using jquery date picker. Any solution to this problem?
Not sure why you have an additional select
SELECT *
FROM Events
WHERE tDate >= CAST(GETDATE() as DATE)
your DATE data is incorrectly stored within Sql Server. When your application passes the string '2015-09-04' and you save that your date column, it is saved as 4th Sept 2015 and not 9th April 2015. Hence your query returns such rows as they are greater than GETDATE().
Example
DECLARE #D VARCHAR(10) = '2015-09-04'
SELECT CONVERT(VARCHAR(20),CONVERT(DATE,#D),109)
you need to fix your data and then use a CONVERT with style when saving dates in your table from application, using something like this. CONVERT(DATE, '20150409',112)
DECLARE #D VARCHAR(10) = '20150409'
SELECT CONVERT(VARCHAR(20),CONVERT(DATE,#D,112),109)
Refer these threads for more info:
Impossible to store certain datetime formats in SQL Server
Cast and Convert
I am unable to get all the rows created today. I have used multiple functions like getdate(), Cast, Convert, etc. but all in vain.
This is my basic query:
SELECT timeId
FROM table_roaster_time_table
WHERE (user_id = #user_id) AND (DATEDIFF(d, date, GETDATE()) = 0)
I want to get the timeId from the table table_roaster_time_table where userid will be provided and the date is today.
How do I do this?
In order to keep any chance of using an index on the [date] column (even if one doesn't exist today, it may in the future), try:
AND [date] >= DATEADD(DAY, 0, DATEDIFF(DAY, 0, CURRENT_TIMESTAMP))
AND [date] < DATEADD(DAY, 1, DATEDIFF(DAY, 0, CURRENT_TIMESTAMP));
If you're using SQL Server 2008 or better, you can do something like this to shorten the code but still make use of an index on [date] if one exists:
AND CONVERT(DATE, [date]) = CONVERT(DATE, CURRENT_TIMESTAMP);
EDIT
Since you seem to be confused why 3/6/2012 is March 6th and not June 3rd, I might also suggest that instead of manually inserting ambiguous date literals like '3/6/2012' into the database, you make the column a default such as:
ALTER TABLE dbo.table_roaster_time_table
ALTER COLUMN [date] DATETIME NOT NULL;
ALTER TABLE dbo.table_roaster_time_table
ADD CONSTRAINT df_date DEFAULT (CURRENT_TIMESTAMP)
FOR [date];
If you're going to insert date literals then at least use a safe and unambiguous format, such as YYYYMMDD:
INSERT dbo.table_roaster_time_table([date]) VALUES('20120603');
Now there is no confusion.
I am facing a problem selecting the date in SQL Server 2005. The table name is Softskill and the column name is insertdate. The data is stored as 2011-09-22 08:50:28.000 in this format.
To select, I am passing values from the front end as '2011-09-22', I mean the date only.
I tried to use
SELECT INSERTDATE FROM SOFTSKILL WHERE INSERTDATE = '2011-09-22'.
But it is not showing the record. May I know which format the column is following and is there any way to retrieve data by using only date?
You want to search for a range of times that encompass the day. Something like:
SELECT INSERTDATE
FROM SOFTSKILL
WHERE INSERTDATE >= '2011-09-22 00:00:00'
AND INSERTDATE < '2011-09-23 00:00:00'
You could also apply functions to INSERTDATE to extract just the date portion, but that will make the query nonsargable.
SELECT *
FROM SOFTSKILL
WHERE DATEADD(dd, 0, DATEDIFF(dd, 0, InsertDate)) = '2011-09-22'
This will do what you need
SELECT INSERTDATE
FROM SOFTSKILL
WHERE CAST(FLOOR(CAST(INSERTDATE AS FLOAT)) AS DATETIME) = '2011-09-30'
You need to truncate INSERTDATE so its time part is 00:00:00.000; then, it will be equal to '2011-09-30' assuming INSERTDATE is '2011-09-30 XX:XX:XX.xxx'.
I have a datetime field in my table. I want to delete records based on a date but I am not interested in the time element. How would I write the SQL for this ? I am using MS SQL 2008.
For best use of indexes, I'd go for this kind of approach:
To delete all records for 1st December:
DECLARE #DateToDelete DATETIME
SET #DateToDelete = '20091201'
DELETE FROM MyTable
WHERE MyDateField >= #DateToDelete AND MyDateField < DATEADD(dd, 1, #DateToDelete)
The alternatives include:
DELETE FROM MyTable
WHERE CAST(CONVERT(VARCHAR(10), MyDateField, 120) AS DATETIME) = #DateToDelete
which converts each datetime value to just it's date part.
But I'd still go with my original way as it allows for more efficient execution.
If you use MS SQL 2008 then you could convert to a new DATE type
DELETE FROM table WHERE date_filed >= CONVERT(DATE,GETDATE())
Is the time relevant in any other place? If not, then you should use a DATE column instead. If you cannot, then the best way to seek a date part of a datetime in a WHERE clause is to use a range:
... WHERE dateColumn BETWEEN '20091221' and '20091222';
Note that given the datetime accuracy of 3ms a datetime like 20091221 23:59:59.999 may be aproximated to 20091222 00:00:00.000 and this can sometime create problems.
There is a great collection of blog posts on the topic of datetime at T-SQL Tuesday #001 (Date/Time Tricks): The Roundup
Try this:-
declare #date datetime
set #date = '2006-11-09'
select #date, dateadd(ms, -1, DATEADD(dd,1,#date))
delete from login
where datecreated between #date AND dateadd(ms, -1, DATEADD(dd,1,#date))
This is what datediff is for:
delete from Table where datediff(day,'2009-12-09',date_filled) = 0