I have two columns.
CREATED_DATE || CREATED_TIME
And I want to write a query to get records between these columns.
I wrote below query but it fails because of time column.
SELECT *
FROM TABLE
WHERE (CREATE_DATE BETWEEN '1982-10-21' AND '2015-02-25')
`AND (CREATE_TIME BETWEEN '14:00:00' AND '15:00:00')
However if requested_start_date >= created_date and requested_end_date =< created_date it then SQL should not compare time columns.
How can i handle it?
Thank you
Regeards
select *from TABLE
where CAST(CREATE_TIME as time) >= '14:00:00'
or CAST(CREATE_TIME as time) < '15:00:00'
try this for time comparision
Related
I have table with fields:
day (varchar)
timeFrom (time)
I have this record already
I need to find records that are less than tomorrow. But my query is giving empty result.
SELECT
*
FROM
table as b
WHERE
AND
(
b.`day` >= '2021-08-24' and b.time_from > '11:15:00'
)
You need to merge & cast your fields to build a datetime value, then you can use it in your where part or datetime functions:
SELECT *
FROM `table` AS b
WHERE cast(concat(b.`day`, ' ', b.time_from) AS datetime) > '2021-08-24 17:30:00'
This query should work.
you should add one day t now() function, then convert it to string and then compare it by you day filed.
Hope to help:
SELECT *
FROM yourtable
WHERE day < DATE_FORMAT(date_add(now(), interval 1 day)
In my opinion you cannot use a ">" operator between strings (varchars)
I think the solution will be to modify the table structure from varchar to datetime.
I need to filter records by time only, so I'm applying this query to MySQL
SELECT * FROM TABLE WHERE TIME(created_at) >= '07:00:00' AND TIME(created_at) <= '06:59:59';
This should filter all records between 24 hours, but no output, however if I change time like below query it works perfectly
SELECT * FROM TABLE WHERE TIME(created_at) >= '00:00:00' AND TIME(created_at) <= '23:59:59';
I've tried to get difference between two given time slots and I'm getting result like this
SELECT TIMEDIFF('00:00:00','23:59:59');
gives me -23:59:59 hours of difference in total
while
SELECT TIMEDIFF('07:00:00','06:59:59');
gives me just 00:00:01, but I suppose it should be -23:59:59 like above
What's the better way to fix this simple problem!?
It has a day crossing, so solution would be something like this
SELECT * FROM TABLE WHERE ((TIME(created_at) >= '07:00:00' AND TIME(created_at) <= '23:59:59') OR (TIME(created_at) >= '00:00:00' AND TIME(created_at) <= '06:59:59'));
The title might be a bit misleading, but what I want is:
SELECT * FROM table ORDER BY pid ASC
And in one of the columns I have a DATE(). I want to compare the current date (not time) and return how many days are left till that date. Let's say the date is 2013-04-20 and today's date is 2013-04-16 I don't want to get any data if it's < current date. If it is I want it returned in days.
I've been looking around here and I've found no way to do it, and I can't for the love of me figure it out.
If you're looking for the difference between two date you can use the GETDATE function in MS SQL
SELECT DATEDIFF(DD, DateOne, DateTwo) FROM TABLE
This will return the difference in number of days between the two dates.
If you only want rows where the date field is less than or equal to today's date you can use:
SELECT DATEDIFF(DD, DateField, GETDATE())
FROM TableName
WHERE DateField <= GETDATE()
If you're using MySQL you can use DATEDIFF()
SELECT
DATEDIFF(NOW(), date_column) AS days_diff
FROM
tablename
Get the difference between two dates (ANSI SQL)
select the_date_column - current_date as days_left
from the_table
where the_date_column - current_date <= 4;
SQLFiddle: http://sqlfiddle.com/#!12/3148d/1
In a SQL statement, how do I compare a date saved as TIMESTAMP with a date in YYYY-MM-DD format?
Ex.: SELECT * FROM table WHERE timestamp = '2012-05-25'
I want this query returns all rows having timestamp in the specified day, but it returns only rows having midnight timestamp.
thanks
You can use the DATE() function to extract the date portion of the timestamp:
SELECT * FROM table
WHERE DATE(timestamp) = '2012-05-25'
Though, if you have an index on the timestamp column, this would be faster because it could utilize an index on the timestamp column if you have one:
SELECT * FROM table
WHERE timestamp BETWEEN '2012-05-25 00:00:00' AND '2012-05-25 23:59:59'
As suggested by some, by using DATE(timestamp) you are applying manipulation to the column and therefore you cannot rely on the index ordering.
However, using BETWEEN would only be reliable if you include the milliseconds. In the example timestamp BETWEEN '2012-05-05 00:00:00' AND '2012-05-05 23:59:59' you exclude records with a timestamp between 2012-05-05 23:59:59.001 and 2012-05-05 23:59:59.999. However, even this method has some problems, because of the datatypes precision. Occasionally 999 milliseconds is rounded up.
The best thing to do is:
SELECT * FROM table
WHERE date>='2012-05-05' AND date<'2012-05-06'
WHERE cast(timestamp as date) = '2012-05-05'
SELECT * FROM table WHERE timestamp >= '2012-05-05 00:00:00'
AND timestamp <= '2012-05-05 23:59:59'
Use a conversion function of MYSQL :
SELECT * FROM table WHERE DATE(timestamp) = '2012-05-05'
This should work
As I was researching this I thought it would be nice to modify the BETWEEN solution to show an example for a particular non-static/string date, but rather a variable date, or today's such as CURRENT_DATE(). This WILL use the index on the log_timestamp column.
SELECT *
FROM some_table
WHERE
log_timestamp
BETWEEN
timestamp(CURRENT_DATE())
AND # Adds 23.9999999 HRS of seconds to the current date
timestamp(DATE_ADD(CURRENT_DATE(), INTERVAL '86399.999999' SECOND_MICROSECOND));
I did the seconds/microseconds to avoid the 12AM case on the next day. However, you could also do `INTERVAL '1 DAY' via comparison operators for a more reader-friendly non-BETWEEN approach:
SELECT *
FROM some_table
WHERE
log_timestamp >= timestamp(CURRENT_DATE()) AND
log_timestamp < timestamp(DATE_ADD(CURRENT_DATE(), INTERVAL 1 DAY));
Both of these approaches will use the index and should perform MUCH faster. Both seem to be equally as fast.
SELECT * FROM table WHERE DATE(timestamp) = '2012-05-25'
It will work but not used index on "timestamp" column if you have any because of DATE function. below query used index and give better performance
SELECT * FROM table WHERE timestamp >= '2012-05-05 00:00:00'
AND timestamp <= '2012-05-05 23:59:59'
OR
SELECT * FROM table
WHERE timestamp >= '2012-05-05' AND timestamp < '2012-05-06'
Try running these to check stats
explain SELECT * FROM table
WHERE DATE(timestamp) = '2012-05-25'
explain SELECT * FROM table WHERE timestamp >= '2012-05-05 00:00:00'
AND timestamp <= '2012-05-05 23:59:59'
In case you are using SQL parameters to run the query then this would be helpful
SELECT * FROM table WHERE timestamp between concat(date(?), ' ', '00:00:00') and concat(date(?), ' ', '23:59:59')
When I read your question, I thought your were on Oracle DB until I saw the tag 'MySQL'. Anyway, for people working with Oracle here is the way:
SELECT *
FROM table
where timestamp = to_timestamp('21.08.2017 09:31:57', 'dd-mm-yyyy hh24:mi:ss');
Use
SELECT * FROM table WHERE DATE(2012-05-05 00:00:00) = '2012-05-05'
Let me leave here it may help someone
For people coming from nodejs and expressjs
getDailyIssueOperations(dateName, date, status) {
const queryText = `
select count(*) as total from issues
where date(${dateName})='${date}' and status='${status}';
`;
},
in case date and column name are variables please find the implementation usefull
I have a SELECT query where I want to find all rows whose DATE and TIME are between 2011-12-11 23:00:00 and 2011-12-12 23:00:00 I try to do it with WHERE but row is empty
WHERE (date >= '2011-12-11' AND time > '23:00:00' )
AND (date < '2011-12-12' AND time < '23:00:00' )
Pls, any good suggestion how to change this?
You could use:
SELECT * FROM table WHERE DATETIME(date) BETWEEN '2011-11-11 23:00:00' AND '2011-12-13 23:00:00'
or separate:
SELECT * FROM table WHERE DATETIME(date) > '2011-12-11 23:00:00' AND DATETIME(date) < '2011-12-13 23:00:00'
EDIT:
I am not sure I understand what you are trying to achieve here or how your DB is laid out but assuming date and time are separate fields:
SELECT * FROM table WHERE DATETIME(concat(DATE(date),' ',TIME(time))) BETWEEN '2011-11-11 23:00:00' AND '2011-12-13 23:00:00'
I haven't tested but this may work.
Yup, that's pretty much not going to work. Show me all rows where time is greater than 11 pm and time is less that 11 pm. Time and Date are different fields?
You'll have to be a little more clever building up the query:
WHERE (date = '2011-12-11' AND time > '23:00:00' )
or ( date = '2011-12-12' AND time < '23:00:00' )
for a 24 hour window, you just need to have 2 clauses. If you want more than a 24 hour window, you'll need three clauses, one for the start date, one for the end date and one for all the dates in between:
WHERE (date = '2011-12-11' AND time > '23:00:00' )
or ( date = '2011-12-13' AND time < '23:00:00' )
or (date >='2011-12-12' and date < '2011-12-13')
ha, and I have the solution without rebuild the dbase - it's working :))
WHERE
CONCAT(date,' ',time) >= '2011-12-11 23:00:00'
AND
CONCAT(date,' ',time) < '2011-12-12 23:00:00'
Maybe it helps for someone.
thanks for all helping people, brgs
hard to tell without the complete query. also assuming that the date column is actually a date type(?) you would usually do something like TO_DATE('2012-12-11','yyyy-mm-dd') to convert to date types in the comparison.
Let's make sure of certain things
You need to get rid of the idea of separate date and time fields when searching
You need to create an additional column in your table called date_time (type DATETIME) which combines the two fields.
You should probably ditch the separate date and time fields and have just date_time
You can then create an index on date_time
Here is the command to do that
ALTER TABLE yourtable ADD INDEX date_time (date_time);
Once you do these things, THEN you can create a query with a WHERE clause that looks like this:
WHERE date_time >= '2011-12-11 23:00:00'
AND date_time < '2011-12-12 23:00:00'
If you cannot combine the date and time fields, you can still create an index
ALTER TABLE yourtable ADD INDEX date_time (date,time);
Given that situation, you can create a query with a WHERE clause that looks like this:
WHERE (date >= '2011-12-11' AND time >= '23:00:00')
AND (date <= '2011-12-12' AND time < '23:00:00')
The EXPLAIN plan for either situation should result in a fast execution of the query with the use of the date_time index.
Give it a Try !!!