I have a database table field named User_Created_Date of type Varchar.I want to write a query to fetch all records where the difference between Today's date and User_Created_Date is greater than 31 days
pls help
Since your VARCHAR column's date format is DD/MM/YY, use:
select * from Your_Table
where DATEDIFF(day, CONVERT(datetime, User_Created_Date, 3), GETDATE()) > 31;
Related
How do I change the format of a date in %d/%m/%Y or any other from this string 10/09/2016 in sqlite?
I have tried this but it is not working:
select strftime('%d/%m/%Y', '09-10-2016'),t_date from party_trans
try this query
select strftime('%d/%m/%Y',datetime(substr(t_date, 7, 4) || '-' || substr(t_date, 4, 2) || '-' || substr(t_date, 1, 2))) from party_trans;
I would suggest to store date as time stamp instead of string. Timestamp gives you more flexibility and accuracy than date. Convert your date into millisecond (timestamp) format and store it into your database as INTEGER type.
Or try this:
select strftime('%d/%m/%Y', '2016-10-09');
Store date into INTEGER type in database.
select strftime('%d/%m/%Y', date) from table
I want to put filter on an Informix query:
WHERE agentstatedetail.eventdatetime < '1753-01-01 00:00:00' - INTERVAL(3) DAY TO DAY
but it fails ...
Please tell where it goes wrong.
As noted in a comment, the solution is to ensure that the string is interpreted as a DATETIME value. The simple way to do that is to use the DATETIME literal notation:
DATETIME(1753-01-01 00:00:00) YEAR TO SECOND
To demonstrate:
CREATE TABLE agentstatedetail
(
eventdatetime DATETIME YEAR TO SECOND NOT NULL PRIMARY KEY,
eventname VARCHAR(64) NOT NULL
);
INSERT INTO agentstatedetail VALUES('1752-12-25 12:00:00', 'Christmas Day, Noon, 1752');
INSERT INTO agentstatedetail VALUES('1752-12-31 12:00:00', 'New Year''s Eve, Noon, 1752');
INSERT INTO agentstatedetail VALUES('1753-01-01 12:00:00', 'New Year''s Day, Noon, 1753');
SELECT * FROM agentstatedetail WHERE agentstatedetail.eventdatetime < '1753-01-01 00:00:00' - INTERVAL(3) DAY TO DAY;
This is your original WHERE clause embedded into a minimal SELECT statement. It yields the error:
SQL -1261: Too many digits in the first field of datetime or interval.
(NB: It would have been helpful to include the error message in the question.)
Here's an alternative version of the query, with the DATETIME literal in place:
SELECT * FROM agentstatedetail
WHERE agentstatedetail.eventdatetime < DATETIME(1753-01-01 00:00:00) YEAR TO SECOND -
INTERVAL(3) DAY TO DAY
;
Output from the sample data:
1752-12-25 12:00:00|Christmas DAY, Noon, 1752
I observe that the value calculated is a constant; you could rewrite the code as:
SELECT * FROM agentstatedetail
WHERE agentstatedetail.eventdatetime < DATETIME(1752-12-29 00:00:00) YEAR TO SECOND
I suspect that the value is passed as a parameter somewhere along the line.
Alternatively, you can cast the string to a DATETIME value and you'd get the same result:
SELECT * FROM agentstatedetail
WHERE agentstatedetail.eventdatetime < CAST('1753-01-01 00:00:00' AS DATETIME YEAR TO SECOND) -
INTERVAL(3) DAY TO DAY
;
or:
SELECT * FROM agentstatedetail
WHERE agentstatedetail.eventdatetime < '1753-01-01 00:00:00'::DATETIME YEAR TO SECOND -
INTERVAL(3) DAY TO DAY
I'm doing a query to return the number of count records for a certain date.
The problem is when I use the GroupBy by a certain day, If the date have no records then the date for that day will not be shown in the output.
How can I achieve that?
I'm doing something like:
SELECT COUNT(History.Id)
FROM History
INNER JOIN User ON User.Id = History.UserId
WHERE (#StartDate = #NullDate OR History.CreatedOnDate >= #StartDate)
AND (#EndDate = #NullDate OR History.CreatedOnDate <= #EndDate)
GROUP BY History.CreatedOnDat
Example
01-08, 3 records
02-08, 2 records
04-08, 5 records
I need to have 03-08 with 0 records.
Create a temp table with one day per row:
Declare #StartDate datetime = '2016-08-01'
Declare #EndDate datetime = '2016-08-31'
declare #temp table
(
oneday datetime
);
WHILE #StartDate <= #EndDate
begin
INSERT INTO #temp VALUES (#StartDate);
SET #StartDate = Dateadd(Day,1, #StartDate);
end
select * from #temp
Then, simply join your query with this temp table.
How can I select data from a table based on weekday or weekend, like
if date is a weekday then select only historical weekday data from the table &
if date is a weekend then select only historical weekend data.
I have tried to do that in this way but no luck
DECLARE #MyDate DATE = '08/17/2013'
SELECT datename(dw,#MyDate)
SELECT * FROM MyTable
WHERE
datename(dw,DateColumnInTable) IN (
CASE WHEN (datename(dw,#MyDate) IN ('Saturday','Sunday')) THEN '''Saturday'',''Sunday'''
ELSE 'Monday'',''Tuesday'',''Wednesday'',''Thursday'',''Friday'
END )
Any I can see lots of data in my table for saturday and sunday but this query is giving me blank record set.
Here's one way:
DECLARE #MyDate DATE = '08/17/2013'
IF (DATEPART(weekday, #MyDate) IN (1,7))
SELECT *
FROM MyTable
WHERE DATEPART(weekday, DateColumnInTable) IN (1,7)
ELSE
SELECT *
FROM MyTable
WHERE DATEPART(weekday, DateColumnInTable) BETWEEN 2 AND 6
If you would like to do it in one clause you can do something like the following, but it may perform worse:
SELECT *
FROM MyTable
WHERE (DATEPART(weekday, #MyDate) IN (1,7) AND DATEPART(weekday, DateColumnInTable) IN (1,7))
OR (DATEPART(weekday, #MyDate) BETWEEN 2 AND 6 AND DATEPART(weekday, DateColumnInTable) BETWEEN 2 AND 6)
I have a table that has four columns.
One of them is named "CreateDate" and it's datatype is "DateTime".
Now, what would be a true T-SQL which retrieves records that their CreateDate is for example
"2010-02-10" ?
If you wish to select all records with CreateDate on a specific date you could use something like
SELECT *
FROM YourTable
WHERE DATEADD(dd, DATEDIFF(dd,0,CreateDate), 0) = '2010-02-10'
or
DECLARE #Date DATETIME
SELECT #Date = '01 Feb 2010'
SELECT *
FROM YourTable
WHERE CreateDate >= #Date
AND CreateDate < #Date + 1
EDIT
If you wish to change the display format of the date, from SQL Server Date Formats
You could try
DECLARE #YourTable TABLE(
CreateDate DATETIME
)
INSERT INTO #YourTable SELECT '01 Feb 2010'
INSERT INTO #YourTable SELECT GETDATE()
SELECT *,
CONVERT(VARCHAR(10), CreateDate, 120) DateValue
FROM #YourTable