select

问题 I have three queries with results. Query 1: SELECT DISTINCT employeeid, work.clientid, ROUND ((CAST (AVG(current_lawn_price) AS numeric) / CAST (AVG((((EXTRACT(HOUR FROM job_finish)*60) + EXTRACT(MIN FROM job_finish))) - ((EXTRACT(HOUR FROM job_start)*60) + EXTRACT(MIN FROM job_start))) AS numeric)) / 1, 2) AS under_over_1 FROM work JOIN timesheet USING (date_linkid) JOIN client USING (clientid) WHERE employeeid = 1 AND workid < 557 AND workid > 188 GROUP BY employeeid, clientid ORDER BY

问题 how to execute a "MySQL" query for all values that are in my column ? Here is my table Table A |----------------------|---------------------|------------------| | id | CL | horse | |----------------------|---------------------|------------------| | 1 | 1er | C.Ferland | | 2 | 5e | Abrivard | | 3 | 3e | P. Hawas | |----------------------|---------------------|------------------| I want the output to be: +------------+--------+---------+---------+-----------+ | horse | Top_1 | Top_2_3 | TOP_4_5

问题 I have a data.frame in R that is a catalog of results from baseball games for every team for a number of seasons. Some of the columns are team , opponent_team , date , result , team_runs , opponent_runs , etc. My problem is that the because the data.frame is a combination of logs for every team, each row essentially has another row somewhere else in the data.frame that is a mirror image of that row. For example team opponent_team date result team_runs opponent_runs BAL BOS 2010-04-05 W 5 4

问题 I am trying to create a SQL query that will pull the number of rows since the last maximum value within a windows function over the last 5 rows. In the example below it would return 2 for row 8. The max value is 12 which is 2 rows from row 8. For row 6 it would return 5 because the max value of 7 is 5 rows away. |ID | Date | Amount | 1 | 1/1/2019 | 7 | 2 | 1/2/2019 | 3 | 3 | 1/3/2019 | 4 | 4 | 1/4/2019 | 1 | 5 | 1/5/2019 | 1 | 6 | 1/6/2019 | 12 | 7 | 1/7/2019 | 2 | 8 | 1/8/2019 | 4 I tried

问题 Similar to the question answered here: jq - How to select objects based on a 'whitelist' of property values, I'd like to select objects based on a blacklist of property values... The following works fine as a whitelist: curl -s 'https://api.github.com/repos/stedolan/jq/commits?per_page=10' | jq --argjson whitelist '["stedolan", "dtolnay"]' '.[] | select(.author.login == $whitelist[]) | {author: .author.login, message: .commit.message}' { "author": "dtolnay", "message": "Remove David from

问题 Similar to the question answered here: jq - How to select objects based on a 'whitelist' of property values, I'd like to select objects based on a blacklist of property values... The following works fine as a whitelist: curl -s 'https://api.github.com/repos/stedolan/jq/commits?per_page=10' | jq --argjson whitelist '["stedolan", "dtolnay"]' '.[] | select(.author.login == $whitelist[]) | {author: .author.login, message: .commit.message}' { "author": "dtolnay", "message": "Remove David from

问题 After validation fails. The values are flashed to the fields. Now, I am trying to use old input to display all the dynamic fields where the user-added data. Therefore, I am using an array called "name" and loop through them to determine how many names are stored in the array. This determines the number of fields I need to display. But my field is a select field. This already checks within an array which field is select. So, for example, the user selects "Jan" from the field called "name".

问题 In Woocommerce, I would like to change Town/City text field in a select field option field. What should i do? Here is a screenshot: Thanks 回答1: You need first to change the field type from 'text' to 'select' using the dedicated hook woocommerce_default_address_fields . Then you have also to change the label and to and an options argument where you are going to set your towns in an array of key/values . In this array, you will have a line by town separated by a coma. Here is the code: add

问题 I am bit confused over default ordering of the rows returned by postgres. postgres=# select * from check_user; id | name ----+------ 1 | x 2 | y 3 | z 4 | a 5 | c1\ 6 | c2 7 | c3 (7 rows) postgres=# update check_user set name = 'c1' where name = 'c1\'; UPDATE 1 postgres=# select * from check_user; id | name ----+------ 1 | x 2 | y 3 | z 4 | a 6 | c2 7 | c3 5 | c1 (7 rows) Before any updation, it was returning rows ordered by id, but after updation, the order has changed. So my question is

问题 Forgive my SQL knowledge, but I have a Person table with following data - Id Name ---- ------ 1 a 2 b 3 b 4 c and I want the following result - Name Total ------ ------ b 2 If I use the GROUP BY query - SELECT Name, Total=COUNT(*) FROM Person GROUP BY Name It gives me - Name Total ------ ------ a 1 b 2 c 1 But I want only the one with maximum count. How do I get that? 回答1: If you want ties SELECT top (1) with ties Name, COUNT(*) AS [count] FROM Person GROUP BY Name ORDER BY count(*) DESC 回答2: