between

问题 select '2011-02-29' BETWEEN '2011-02-01' AND '2011-03-03'‎ this is returning 1. I think between doesn't consider leap year. I want your view on this? [EDIT] SELECT DATE( '2010-04-31' ) is returning NULL; But select str_to_date('2010-04-31', '%Y-%m-%d') is retuning date. Why? Thanks Venu 回答1: you need to cast it to date like: SELECT DATE('2011-02-29') BETWEEN DATE('2011-02-01') AND DATE('2011-03-03') from the site : For best results when using BETWEEN with date or time values, use CAST() to

问题 We have a table with more than two million rows where all queries against it will be a Between lookup using Column1 and Column2 . Also, there will only be one possible result. For example... Col1 Col2 1 5 6 10 11 15 select * from table1 where 8 between Col1 and Col2 I currently have an unique clustered index on Col1 and Col2 . So far I have been unable to figure out how to further tune the query and the indexes to minimize the rows handled. The execution plan currently reports cost of almost

问题 I am trying to query my postgresql db to return results where a date is in certain month and year. In other words I would like all the values for a month-year. The only way i've been able to do it so far is like this: SELECT user_id FROM user_logs WHERE login_date BETWEEN '2014-02-01' AND '2014-02-28' Problem with this is that I have to calculate the first date and last date before querying the table. Is there a simpler way to do this? Thanks 回答1: With dates (and times) many things become

问题 I'm trying to assign a different column to a sum depending on the dates. Here's what I have: SELECT SUM(amount) CASE WHEN date BETWEEN '1/1/13' AND '1/1/14' THEN Last_yr_tot WHEN date BETWEEN '1/1/14' AND 'now' THEN YTD My entire query. select fd.location_cd ,round(sum(case when fd.fs_dt between '1/1/13' and '12/31/13' then amount else 0 end)::numeric, 0) as Last_yr ,round(sum(case when fd.fs_dt between '1/1/14' and current_date then amount else 0 end)::numeric, 0) as YTD ,round(sum(case when

问题 I'm getting stuck on regex101 with the following test string: https://localhost:8443/site/recipes/recepten-zoeken/menugang:hoofdgerecht/soort:italiaans/seizoen:winter?Nrpp=24 I'm trying to match everything in between: recepten-zoeken/ and ? My current tries lead me nowhere as i'm very novice writing regexes. Anyone wanting to chip in? This is what I currently have: .(?=([^/recepten-zoeken/]?)*$) 回答1: Use capturing group.( () brackets indicates capturing group) Capture upto last question mark

问题 I have data points distributed over the whole globe. Every data point has a timestamp. I want to group the data by the seasons, as shown in this picture (source: https://en.wikipedia.org/wiki/Season#/media/File:Seasons1.svg). This is what I tried so far (winter 2011/2012 in the northern hemisphere): SELECT * FROM my_table WHERE my_date BETWEEN '2011-12-21' AND '2012-03-21' AND ST_Y(ST_Centroid(geom)) > 0; How can I do this for all possible years? I tried ...OR date BETWEEN... but this is very

问题 I'm stuck with a sumif formula. I think if I used some mix of index and match I could get it to work but I've been unable to do so for the past hour! I need to sum from a table of numbers depending on the house number and 2 dates. For example, I need to sum the numbers for house 1 between dates 08-05-17 and 13-05-17. My previous experience with index and match is that I've only every used it to get a single specific digit. 回答1: OFFSET and INDIRECT are volatile, this is possible with INDEX

问题 What's the best (fastest) approach to compare if date is in range of dates independently from year? table "dates": some_column| since | upto | -----------|--------------|-------------| 'foo' | '2011-05-01' | '2013-06-01'| Now I want this query to return 'foo' SELECT foo FROM dates WHERE '2014-05-05' BETWEEN `since` AND `upto` If needed, I can change type/format of stored dates in "dates" table, but I cannot change format of date which I put into query as that value is typically from another

问题 I am reading a data file. Rows start with consecutive numbers (steps), and sometimes in between each row there is a 0. E.g: 1 0 2 0 3 4 5 0 0 0 6 0 How can I create a list that counts the number of 0s in between each step. I want a list like this: finalList = [1,1,0,0,3,1] which represents the number of 0s each step contains, i.e: step 1 has 1 zero, step 2 has 1 zero, step 3 has 0 zeros, step 4 has 0 zeros, step 5 has 3 zeros and step 6 has 1 zero. 回答1: The following code should work if your

问题 I have two tables that contain records about road construction activites: table_a is the master list. table_b is a legacy list. For each road, in each year, I want to select the records from table_b that do not already exist in table_a . Also, the records should not overlap spatially along the road. More specifically, the from_m and to_m of the records in table_b should not overlap the from_m and to_m in table_a . How can I do this? I do not have Oracle Spatial. The data in Excel (for easy