I'm trying to make a query that will look like
SELECT * from `table` WHERE args
I need to have my args the date from 'yesterday' and time 23:00 until date'Today' and time 22:59.
I'm very bad at writing SQL and I will need masters help for this one.
I know how to write basic SQL and I'm not sure how to write.
Date and time are 2 different rows.
Basic SQL stuff.
Expecting all data from date yesterday starting with time 23:00 until date = today and time = 22:59
Logically is simple, I'm just bad at writing SQL logic.
Date has to be always generated based on current date, time will be static.
SELECT * from `table` WHERE date= Yesterday And time= 23:00 TO date=today time=22:59
Edit:
Database is MariaDB from Xamp
Assuming this is MySQL (MariaDB) and there are in fact two columns called date and time this could be written as
SELECT * FROM `table` WHERE
(date = SUBDATE(CURDATE(), 1) AND time >= '23:00') OR (date = CURDATE() AND time < '23:00');
This is a bit unusual though. Usually you would have as single column of type datetime or timestamp instead of two columns, and they should not be called date or time because these are keywords.
You may try the below query:
SELECT * FROM `table` WHERE date BETWEEN CONCAT(date_sub(curdate(),interval 1 day),' 23:00') AND CONCAT(curdate(),' 22:59');
Please double check your database timezone.
I want to search for data between given dates. I'm able to get results that are between but it's not including the day at the beginning and end of between statement.
I tried just switching the days that use the between on such as adding or subtracting a day, but there's gotta be another way.
SQL:
WHERE "Date" Between '09/02/2019' AND '09/06/2019'
AND (sf.TemplateName = 'Nassco Lacp')
AND (sf.ProjectName = 'Crossbore Safety Program')
AND (sf.WorkOrderNumber LIKE '%2715%I1%')
I should get all data between those days including the work done on the the second and sixth, but for some reason I'm not getting stuff done on the sixth. HELP!
Don't use between with dates! The time component can cause a problem. Instead:
where date >= '2019-09-02' and
date < '2019-09-07' and -- note this is one day later
. . .
Most databases understand the YYYY-MM-DD for date constants.
In my experience this happends when the Date field is a timestamp data type. What happends is that a specific date such as 09/02/2019 it's interpreted as 09/02/2019 00:00:00 so any value before is exclured.
Try (ORACLE DBMS):
WHERE Trunc("Date") Between '09/02/2019' AND '09/06/2019'
Try (SQL Server):
WHERE cast("Date" As Date) Between '09/02/2019' AND '09/06/2019'
I have teradata scripts
AND ADD_MONTHS('?StartDate',1)-1 BETWEEN A.CNTSTRT_DT AND COALESCE(A.CNTEND_DT, DATE)
This script looks like it prompts for a date, then adds one month to that date. But I'm not clear on what the -1 does.
Additionally, I see that it compares the date to see if they are between the CNTSTRT_DT and CNTEND_DT, but what does the DATE do specifically?
The -1 is to substruct one day, for example the query:
select ADD_MONTHS(cast('2016/01/25' as date),1)-1
returns: 24/02/2016
Also, "Date" is a function which returns current date.
I can't seem to get reliable results from the query against a sqlite database using a datetime string as a comparison as so:
select *
from table_1
where mydate >= '1/1/2009' and mydate <= '5/5/2009'
how should I handle datetime comparisons to sqlite?
update:
field mydate is a DateTime datatype
To solve this problem, I store dates as YYYYMMDD. Thus,
where mydate >= '20090101' and mydate <= '20050505'
It just plain WORKS all the time. You may only need to write a parser to handle how users might enter their dates so you can convert them to YYYYMMDD.
SQLite doesn't have dedicated datetime types, but does have a few datetime functions. Follow the string representation formats (actually only formats 1-10) understood by those functions (storing the value as a string) and then you can use them, plus lexicographical comparison on the strings will match datetime comparison (as long as you don't try to compare dates to times or datetimes to times, which doesn't make a whole lot of sense anyway).
Depending on which language you use, you can even get automatic conversion. (Which doesn't apply to comparisons in SQL statements like the example, but will make your life easier.)
I had the same issue recently, and I solved it like this:
SELECT * FROM table WHERE
strftime('%s', date) BETWEEN strftime('%s', start_date) AND strftime('%s', end_date)
The following is working fine for me using SQLite:
SELECT *
FROM ingresosgastos
WHERE fecharegistro BETWEEN "2010-01-01" AND "2013-01-01"
Following worked for me.
SELECT *
FROM table_log
WHERE DATE(start_time) <= '2017-01-09' AND DATE(start_time) >= '2016-12-21'
Sqlite can not compare on dates. we need to convert into seconds and cast it as integer.
Example
SELECT * FROM Table
WHERE
CAST(strftime('%s', date_field) AS integer) <=CAST(strftime('%s', '2015-01-01') AS integer) ;
I have a situation where I want data from up to two days ago and up until the end of today.
I arrived at the following.
WHERE dateTimeRecorded between date('now', 'start of day','-2 days')
and date('now', 'start of day', '+1 day')
Ok, technically I also pull in midnight on tomorrow like the original poster, if there was any data, but my data is all historical.
The key thing to remember, the initial poster excluded all data after 2009-11-15 00:00:00. So, any data that was recorded at midnight on the 15th was included but any data after midnight on the 15th was not.
If their query was,
select *
from table_1
where mydate between Datetime('2009-11-13 00:00:00')
and Datetime('2009-11-15 23:59:59')
Use of the between clause for clarity.
It would have been slightly better. It still does not take into account leap seconds in which an hour can actually have more than 60 seconds, but good enough for discussions here :)
I had to store the time with the time-zone information in it, and was able to get queries working with the following format:
"SELECT * FROM events WHERE datetime(date_added) BETWEEN
datetime('2015-03-06 20:11:00 -04:00') AND datetime('2015-03-06 20:13:00 -04:00')"
The time is stored in the database as regular TEXT in the following format:
2015-03-06 20:12:15 -04:00
Right now i am developing using System.Data.SQlite NuGet package (version 1.0.109.2). Which using SQLite version 3.24.0.
And this works for me.
SELECT * FROM tables WHERE datetime
BETWEEN '2018-10-01 00:00:00' AND '2018-10-10 23:59:59';
I don't need to use the datetime() function. Perhaps they already updated the SQL query on that SQLite version.
Below are the methods to compare the dates but before that we need to identify the format of date stored in DB
I have dates stored in MM/DD/YYYY HH:MM format so it has to be compared in that format
Below query compares the convert the date into MM/DD/YYY format and get data from last five days till today. BETWEEN operator will help and you can simply specify start date AND end date.
select * from myTable where myColumn BETWEEN strftime('%m/%d/%Y %H:%M', datetime('now','localtime'), '-5 day') AND strftime('%m/%d/%Y %H:%M',datetime('now','localtime'));
Below query will use greater than operator (>).
select * from myTable where myColumn > strftime('%m/%d/%Y %H:%M', datetime('now','localtime'), '-5 day');
All the computation I have done is using current time, you can change the format and date as per your need.
Hope this will help you
Summved
You could also write up your own user functions to handle dates in the format you choose. SQLite has a fairly simple method for writing your own user functions. For example, I wrote a few to add time durations together.
My query I did as follows:
SELECT COUNT(carSold)
FROM cars_sales_tbl
WHERE date
BETWEEN '2015-04-01' AND '2015-04-30'
AND carType = "Hybrid"
I got the hint by #ifredy's answer. The all I did is, I wanted this query to be run in iOS, using Objective-C. And it works!
Hope someone who does iOS Development, will get use out of this answer too!
Here is a working example in C# in three ways:
string tableName = "TestTable";
var startDate = DateTime.Today.ToString("yyyy-MM-dd 00:00:00"); \\From today midnight
var endDate = date.AddDays(1).ToString("yyyy-MM-dd HH:mm:ss"); \\ Whole day
string way1 /*long way*/ = $"SELECT * FROM {tableName} WHERE strftime(\'%s\', DateTime)
BETWEEN strftime('%s', \'{startDate}\') AND strftime('%s', \'{endDate}\')";
string way2= $"SELECT * FROM {tableName} WHERE DateTime BETWEEN \'{startDate}\' AND \'{endDate}\'";
string way3= $"SELECT * FROM {tableName} WHERE DateTime >= \'{startDate}\' AND DateTime <=\'{endDate}\'";
select *
from table_1
where date(mydate) >= '1/1/2009' and date(mydate) <= '5/5/2009'
This work for me
I dont have proper timestamp in table; is it possible to delete 1 day old logs even now?
I have a column name as SESSION_IN which is basically a VARCHAR datatype, and the value will be like
2013-10-15 02:10:27.883;1591537355
is there any way to trim the number after ; and is it possible to compare with "sysdate" identifier?
This SP should compare all the session IDs with current datetime and it should delete if it is older then 1 day.
You can igonre time part and convert date into required format somthing like this
SYSDATE - to_date('date_col','YYYY-DD-MM')
then you can perform operations.
Use the Substring function to extract the datetime portion from the record, then use convert to datetime to cast it to datetime, and then finally use datediff to check if it was inserted yesterday. Use all these caluses in a
DELETE FROM table
WHERE ___ query
For Oracle you could use something like this:
SELECT
TRUNC(to_timestamp(SUBSTR('2013-10-15 02:10:27.883;1591537355',1,
(
SELECT
instr('2013-10-15 02:10:27.883;1591537355', ';')-1
FROM
dual
)
), 'YYYY-MM-DD HH:MI:SS.FF'))
FROM
dual;
Which gives you just the date portion of your input string. Just subtract the amount of days you want to log at the end.
Hope following query helps you:
Select Convert(Datetime,Substring('2013-10-15 02:10:27.883;1591537355',1,23)), DateDiff(dd,Convert(Datetime,Substring('2013-10-15 02:10:27.883;1591537355',1,23)),Getdate())