select

问题 I need to find the distinct drinkers that ordered 'VODKA' and 'WHISKY'. I AM ONLY ALLOWED TO USE A NESTED QUERY. No other format is accepted. I am quite new to sql so any help would be greatly appreciated! Here are the tables I am trying to retrieve data from: CREATE TABLE DRINKERS ( /* All drinkers */ DRINKER VARCHAR(30) NOT NULL, CONSTRAINT DRINKERS_PKEY PRIMARY KEY (DRINKER)); CREATE TABLE ORDERS( /* Drinkers visit pubs and consumes drinks */ DRINKER VARCHAR(30) NOT NULL, /* Drinker name *

问题 This question already has answers here : Mysql: Select all data between two dates (7 answers) SQL Select query that returns a range [duplicate] (4 answers) Closed 6 years ago . I've already tried all other questions/solutions, and no answer. so here it is: I need to SELECT * FROM people WHERE (dob is 18 to 40) but my dob is stored as DATE type YYYY-MM-DD need to select people between 18 and 40 for example! 回答1: You need to use BETWEEN with some year calculation TIMESTAMPDIFF(YEAR,'1980-02-04'

问题 I've got a table and I want a query that returns the last 10 records created plus the record who's id is x. I'm trying to do - SELECT * FROM catalog_productimage ORDER BY date_modified LIMIT 10 UNION SELECT * FROM catalog_productimage WHERE id=5; But it doesn't look like I can put LIMIT in there before UNION . I've tried adding another column and using it for sorting - SELECT id, date_modified, IF(false, 1, 0) as priority FROM catalog_productimage UNION SELECT, id, date_modified, IF(true, 1,

问题 I've got a table and I want a query that returns the last 10 records created plus the record who's id is x. I'm trying to do - SELECT * FROM catalog_productimage ORDER BY date_modified LIMIT 10 UNION SELECT * FROM catalog_productimage WHERE id=5; But it doesn't look like I can put LIMIT in there before UNION . I've tried adding another column and using it for sorting - SELECT id, date_modified, IF(false, 1, 0) as priority FROM catalog_productimage UNION SELECT, id, date_modified, IF(true, 1,

问题 I've got a table and I want a query that returns the last 10 records created plus the record who's id is x. I'm trying to do - SELECT * FROM catalog_productimage ORDER BY date_modified LIMIT 10 UNION SELECT * FROM catalog_productimage WHERE id=5; But it doesn't look like I can put LIMIT in there before UNION . I've tried adding another column and using it for sorting - SELECT id, date_modified, IF(false, 1, 0) as priority FROM catalog_productimage UNION SELECT, id, date_modified, IF(true, 1,

问题 I need to ask you for help with MySQL select query. Specific example: employees with the spouse and kids. I have 2 tables already joined into one and now I need to: 1, select the data with grouping them by 'emp' field 2, transform the result with these rules: only one row with particular emp (emp-A, emp-B, emp-C) each relative (spouse and kids) in succeeding columns (spouse first, kids next) The table (in fact two joined tables): +---------+-----------+-----------+------------+ | emp |

问题 As shown in the picture below, black border is shown when the select option is hover from the chrome. how can I remove the border? The code below didn't work. select{ &:hover, &:focus { outline: 0 !important; } } I'd appreciate it if you could help me solve the problem. 回答1: Go chrome flags Disable #form-controls-refresh 来源： https://stackoverflow.com/questions/62013064/how-do-i-remove-the-select-option-black-border-in-chrome

问题 As shown in the picture below, black border is shown when the select option is hover from the chrome. how can I remove the border? The code below didn't work. select{ &:hover, &:focus { outline: 0 !important; } } I'd appreciate it if you could help me solve the problem. 回答1: Go chrome flags Disable #form-controls-refresh 来源： https://stackoverflow.com/questions/62013064/how-do-i-remove-the-select-option-black-border-in-chrome

问题 As shown in the picture below, black border is shown when the select option is hover from the chrome. how can I remove the border? The code below didn't work. select{ &:hover, &:focus { outline: 0 !important; } } I'd appreciate it if you could help me solve the problem. 回答1: Go chrome flags Disable #form-controls-refresh 来源： https://stackoverflow.com/questions/62013064/how-do-i-remove-the-select-option-black-border-in-chrome

问题 I want to show all rows, all columns with checkbox as I want only true/false value. But I want to access single cell value i.e. each of the checkbox can be checked/unchecked. see image below. As per my knowledge when I tick checkbox, all checkboxes of row get selected. So, can I check/uncheck single box? 回答1: I was trying to find out how it works today as well. What i could find out was, that the best way is to create a new Component and use cellRendererFramework instead of cellRenderer .