As i have the table in athena with multiple columns. In that table one of the column named such as date_col with below format.
date_col
1/13/2022 3:00:16 PM
1/13/2022 3:00:13 PM
1/13/2022 2:00:16 PM
1/13/2022 2:15:16 PM
From the above date_col records, I want to get the only date without time part.
Here it is i am using the query :
select date_col, date_format(date_col, '%m/%d/%Y') from 'test'.sample_table'
But getting below error like :
SYNTAX_ERROR: line 1:25: Unexpected parameters (varchar, varchar(8)) for function date_format. Expected: date_format(timestamp with time zone, varchar(x)) , date_format(timestamp, varchar(x))
Required format should be like:
date_col
1/13/2022
1/13/2022
1/13/2022
1/13/2022
I used different ways to get that result. But, I couldn't get the required format. Can you please help me for that. Thanks in advance.
Please try with the date_format function
select date_col ,date_format(date_col, '%m/%d/%Y') FROM <table_name>;
Related
I have a text field "completed_on" with text values "Thu Jan 27 2022 11:55:12 GMT+0530 (India Standard Time)".
I need to convert this into timestamp.
I tried , cast(completed_on as timestamp) which should give me the timestamp but I am getting the following error in REDSHIFT
ERROR: Char/varchar value length exceeds limit for date/timestamp conversions
Since timestamps can be in many different formats, you need to tell Amazon Redshift how to interpret the string.
From TO_TIMESTAMP function - Amazon Redshift:
TO_TIMESTAMP converts a TIMESTAMP string to TIMESTAMPTZ.
select sysdate, to_timestamp(sysdate, 'YYYY-MM-DD HH24:MI:SS') as seconds;
timestamp | seconds
-------------------------- | ----------------------
2021-04-05 19:27:53.281812 | 2021-04-05 19:27:53+00
For formatting, see: Datetime format strings - Amazon Redshift.
I have date in the following format in a file:
January 2, 2020 8:15:32 AM UTC
How to query it using Athena? I am trying to query all the rows where date is greater than a specific date.
I don't see above mentioned date format in the documentation.
As #John Rotenstein said you will have problens if your file row has columns split by , because your date columns also uses ,.
Nevertheless here is how you can cast your string January 2, 2020 8:15:32 AM UTC to date in Athena.
Athena uses presto in the backend and you can use the parse_datetime with the corresponding format to convert your string to a date.
parse_datetime(string, format) → timestamp with time zone
WITH t(x) AS (VALUES 'January 2, 2020 8:15:32 AM UTC')
SELECT parse_datetime(x, 'MMM d, YYYY hh:mm:ss a z')
FROM t;
produces the output
"_col0"
"2020-01-02 08:15:32.000 UTC"
Below is the data in csv file in s3 bucket which I have used to build Athena database.
John
Wright
cricket
25
Steve
Adams
football
30
I am able to run the query and get the data.
Now I am trying to fetch date of birth based on age column. Is it possible to generate date of birth from age column like current date - age (column) and print only the date of birth?
I tried below query but not sure whether it is correct way
select (current_date - interval age day) from table_name;
Please help me with this.
You can use the date_add function, like this:
SELECT date_add('year', -age, current_date) FROM table_name
I.e. subtract age number of 'year'(s) from the current date.
I have a very simple question but since i am not familiar with SQL or PL/SQL, i got no idea to do that.
In my Oracle APEX Application, I am loading data from a table into a CLASSIC REPORT through setting Local Database/SQL Query as source.
I have to make 4 columns from data of 2 columns stored in a table. I can load 3 without any issue using the below simple statement:
Select TaskName, DueDate, DueDate - 3 as ReminderDate
from table_name
Fourth column should be "RemainingDays" which equals to DueDate-current date, I have tried writing DueDate - Sys_date and DueDate - current_date in the above statement to get the fourth column but probably its not the correct way as i get error instead of all 4 columns. (I am doing in it basic excel/dax way). Any Help here?
When you subtract a date from another date, Oracle returns a number which is the number of days between the two dates.
One thing to note when using SYSDATE or CURRENT_DATE is that you may get different results if your user is not in the same timezone as the database. SYSDATE returns the current time of the database. CURRENT_DATE returns the current time of the user whatever timezone they may be in.
If possible, try building the query in a tool such as SQL Developer, get it working there, then build your Classic Report in APEX. If you are still receiving an error, please share the error you are receiving as well as the query you are using.
Example
--Start of sample data
WITH
t (task_name, due_date)
AS
(SELECT 'task1', DATE '2020-9-30' FROM DUAL
UNION ALL
SELECT 'task2', DATE '2020-9-28' FROM DUAL)
--End of sample data
SELECT task_name,
due_date,
due_date - 3 AS reminder_date,
ROUND (due_date - SYSDATE,2) AS days_remaining
FROM t;
Result
TASK_NAME DUE_DATE REMINDER_DATE DAYS_REMAINING
____________ ____________ ________________ _________________
task1 30-SEP-20 27-SEP-20 13.66
task2 28-SEP-20 25-SEP-20 11.66
I have a table like below.
item_id bill_start_date bill_end_date usage_amount
635212 2019-02-01 00:00:00.000 3/1/2019 00:00:00.000 13.345 user_project
IBM
I am trying to find usage_amount by each month and each project. Amazon Athena query engine is based on Presto 0.172. Due to the limitations in Athena, it's not recognizing query like select sysdate from dual;.
I tried to convert bill_start_date and bill_end_date from timestamp to date but failed. even current_date() didn't work in my case. I am able to do calculate the total cost by hard coding the values but my end goal is to perform the action on columns.
SELECT (FLOOR(SUM(usage_amount)*100)/100) AS total,
user_project
FROM test_table
WHERE bill_start_date
BETWEEN date '2019-02-01'
AND date '2019-03-01'
GROUP BY user_project;
In Presto, current_timestamp is a SQL standard function which does not use parentheses.
To group by month, I'd use date_trunc('month', bill_start_date).
All of these functions are documented here