I need to convert a date to an integer with the format YYYMMDD in Bigquery.
I tried with:
PARSE_DATE('%Y%m%d', response_date)
but its not working (Error: No matching signature for function PARSE_DATE for argument types: STRING, DATE. Supported signature: PARSE_DATE(STRING, STRING) at [1:8])
response_date: Date Format
Wanted Result: 20210201 as an integer or string
If anyone know the correct sintax it would be really helpful. Thank you!
One method is arithmetic:
select extract(year from response_date) * 10000 + extract(month from response_date) * 100 + extract(day from response_date)
Another method is FORMAT_DATE():
select cast(format_date('%Y%m%d', response_date) as int64)
Another option (might look funny/silly but works)
select translate('' || response_date, '-', '')
and then you can do with resulted string whatever cast'ing you need or just leave as is (as string)
... can easily be tested with below query
select translate('' || current_date(), '-', '')
with output
But obviously - the best way to go is with FORMAT_DATE() as in Gordon's answer :o)
Related
I have a requirement for Redshift SQL where I need to convert a column like '2020-Q2' to start of the quarter date 2020-04-01. I tried few other posts but they don't seem to work. Read somewhere I can use below query but it doesn't really work:
select to_timestamp(to_date('2015-Q1', 'YYYY-MM-DD'), 'HH24:MI:SS');
I am planning to make a UDF but if there is an in-built function already, please share. Thanks!
The following works in Postgres and I think it should work in Redshift:
select to_date(left(yyyyqq, 4), 'YYYY') + (right(yyyyqq, 1)::int - 1) * interval '3 month'
from (select '2015-Q3' as yyyyqq) x
I would like to store dates in the format CCYYMMDD in Teradata, but I fail to do so. Find below what I tried so far:
query 1:
SEL CAST(CAST(CURRENT_DATE AS DATE FORMAT 'YYYYMMDD') AS VARCHAR(8))
-- Output: 20191230 ==> this works!
query 2:
SEL CAST(CAST(CURRENT_DATE AS DATE FORMAT 'CCYYMMDD') AS VARCHAR(8))
-- output: SELECT Failed. [3530] Invalid FORMAT string 'CCYYMMDD'.
It seems that the CCYYMMDD is not available in Teradata right away. Is there a workaround?
Tool used: Teradata SQL assistant
Internally, dates are stored as integers in Teradata. So when you say you want to store them in a different format, I don't think you can do that. But you can choose how to display / return the values.
I'm sure there's a cleaner way to get the format you want, but here's one way:
WITH cte (mydate) AS (
SELECT CAST(CAST(CURRENT_DATE AS DATE FORMAT 'YYYYMMDD') AS CHAR(8)) AS mydate
)
SELECT
CAST(
(CAST(SUBSTRING(mydate FROM 1 FOR 2) AS INTEGER) + 1) -- generate "century" value
AS CHAR(2) -- cast value as string
) || SUBSTRING(mydate FROM 3) AS new_date -- add remaining portion of date string
FROM cte
SQL Fiddle - Postgres
You'd have to add some extra logic to handle years before 1000 and after 9999. I don't have a TD system to test, but give it a try and let me know.
In SQL. How to convert a column A from (YYYY-MM-DD) to (YYYYMM)? I want to show the dates in YYYYMM format instead of YYYY-MM-DD.
Data type is TIMESTAMP. Using Teradata Studio 15.10.10.
For Teradata either use
to_char(tscol, 'YYYYMM') -- varchar result
or
extract(year from tscol) * 100 + extract(month from tscol) -- integer result
In Teradata you can format dates pretty much at will. To get YYYYMM, you would use
select <your date> (format 'yyyymm') (char(6))
Your date column needs to be actual date for this, not a string.
There are 3 functions you'll need.
MONTH() function. Returns the MONTH for the date within a range of 1 to 12 ( January to December). It Returns 0 when MONTH part for the date is 0.
YEAR() function. Returns a 4 digit YEAR.
CONCAT() function is used to concatenate two or more strings together.
So here's an example of combining the 3 functions.
SELECT CONCAT(YEAR('1969-02-18'),MONTH('1969-02-18'))
or you can do it in one with
select DATE_FORMAT('1969-02-18','%Y%m')
So to answer your question if it is referring to column A, you can use
SELECT DATE_FORMAT(A,'%Y%m')
SQL Fiddle:
http://www.sqlfiddle.com/#!9/a6c585/48362
You can use DATEPART to get the year and month parts of the date, cast to a varchar, pad and the concaternate.
SELECT DATEPART(YEAR,GETDATE())
SELECT DATEPART(MONTH,GETDATE())
SELECT CAST(DATEPART(YEAR,GETDATE()) AS VARCHAR(4)) + RIGHT('00' + CAST(DATEPART(MONTH,GETDATE()) AS VARCHAR(2)),2)
I have been trying to achieve this all day, I have followed numerous tutorials and can't seem to crack it, I have been trying things like:
select CONVERT(VARCHAR(10), DATE, 131) from Table
yet it does not seem to change anything.
Any advice or help would be appreciated. Thankyou in advance.
SELECT CONVERT(VARCHAR(10), DATE, 12)
12 is the right code for the format you want. See: https://msdn.microsoft.com/en-GB/library/ms187928.aspx
Try this
declare #TDATE Date = '2015-11-10';
select Convert(varchar,Datepart(Year, #TDATE))+Convert(varchar,Datepart(Month, #TDATE))+Convert(varchar,Datepart(Day, #TDATE))
Output:
20151110
12 is the right code. Use below query to get output as 'yymmdd'
select CONVERT(VARCHAR(10), DATE, 12) from Table
On PostgreSQL the easiest way is to use to_char:
to_char(date, 'yyyymmdd')::int
One method is to construct the value from date parts. Here is a numeric conversion:
select (year(date) % 100) * 10000) + month(date) * 100 + day(date)
It is easy to convert this to a number:
select cast( (year(date) % 100) * 10000) + month(date) * 100 + day(date) as varchar(10))
The slight advantage to this approach over using convert is that a human being can understand the logic without perusing arcane documentation, specific to SQL Server. I don't know why SQL Server doesn't support a simple format-type function similar to most other databases (and programming languages).
select date_format(column_name, '%Y%m%d') from table_name;
I'm pretty new to Sybase and am writing a query to return results after a specified date, and also before a specified date. MM/DD/YYYY format
At the moment im doing..
SELECT *
From aTable
WHERE afterDate >= 08/07/2013
AND beforeDate <= 08/08/2013
I'm getting records back, but as I'm a Sybase newbie, I want to be sure Sybase is interpreting these dates correctly..
Their online doc is pretty bad for basic explanations on things like this!
Anyone able to confirm if what I have works, or does it need some formatting round the dates?
You'll need to convert the dates into DATETIME and tell sybase what the format is to be sure.
According to this documentation the code for MM/DD/YYYY is 101, so something like this:
SELECT *
FROM aTable
WHERE afterDate >= CONVERT(DATETIME,'08/07/2013',101)
AND beforeDate <= CONVERT(DATETIME,'08/08/2013',101)
You can see the difference by running the following select statements:
SELECT CONVERT(DATETIME,'08/07/2013',101) --MM/DD/YYYY (2013-08-07 00:00:00.000)
SELECT CONVERT(DATETIME,'08/07/2013',103) --DD/MM/YYYY (2013-07-08 00:00:00.000)
For any date-time field in sybase, instead of going through the convert function, there is a more direct approach.
SELECT *
From aTable
WHERE afterDate >= '2013-08-07'
AND beforeDate <= '2013-08-08'
The date has to be in the form 'YYYY-MM-DD'
If you want to add a time, it can be included along with the date. The date and the time have to be separated by a T.
Any date time field can be directly used using the format 'YYYY-MM-DDTHH:MM:SS'
Using the functions is too lengthy. Noone needs a bazooka to shoot a squirrel! :)
CAST( '2000-10-31' AS DATE )
will convert from text to date format....
I am assuming that your two fields (afterDate and beforeDate) are in Date format.
Your example would be:
SELECT *
From aTable
WHERE afterDate >= CAST( '08/07/2013' AS DATE )
AND beforeDate <= CAST( '08/08/2013' AS DATE )
Also, usually (but not always) a date range is on the SAME field. As I said, that is not true all the time and you may have a good reason for that.
The best approach is to use the ANSI standard which does not require any conversion: yyyymmdd (you can also include hh:mm:ss) for instance:
DateField1 >= "20150101" and DateFile1 <= "20150102"
You should decide which Input-Strings the user is going to use as parameter and then convert them and concatenate them like you want, unless it is Datetime it is not important which initial format it had, you can use it in a between-condition.
E. g. the user is from Europe and uses "DD.MM.YY" and "hh:mm" as an input parameter, I would convert and concatenate like this:
WHERE dateCol between convert(DATETIME,
convert(char(11),
convert(DATETIME, '01.06.14', 4), 16) || ' ' || '00:00', 8)
AND convert(DATETIME,
convert(char(11),
convert(DATETIME, '01.07.14', 4), 16) || ' ' || '16:00', 8)