大约有 40,000 项符合查询结果(耗时:0.0235秒) [XML]

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How to set Sqlite3 to be case insensitive when string comparing?

I want to select records from sqlite3 database by string matching. But if I use '=' in the where clause, I found that sqlite3 is case sensitive. Can anyone tell me how to use string comparing case-insensitive? ...
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Adding options to select with javascript

I want this javascript to create options from 12 to 100 in a select with id="mainSelect", because I do not want to create all of the option tags manually. Can you give me some pointers? Thanks ...
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Sql Server equivalent of a COUNTIF aggregate function

...u could use a SUM (not COUNT!) combined with a CASE statement, like this: SELECT SUM(CASE WHEN myColumn=1 THEN 1 ELSE 0 END) FROM AD_CurrentView Note: in my own test NULLs were not an issue, though this can be environment dependent. You could handle nulls such as: SELECT SUM(CASE WHEN ISNULL(myC...
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JOIN two SELECT statement results

Is it possible to join the results of 2 sql SELECT statements in one statement? I have a database of tasks where each record is a separate task, with deadlines (and a PALT , which is just an INT of days from start to deadline. Age is also an INT number of days.) ...
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How to select only the first rows for each unique value of a column

... A very simple answer if you say you don't care which address is used. SELECT CName, MIN(AddressLine) FROM MyTable GROUP BY CName If you want the first according to, say, an "inserted" column then it's a different query SELECT M.CName, M.AddressLine, FROM ( SELECT ...
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Select N random elements from a List in C#

I need a quick algorithm to select 5 random elements from a generic list. For example, I'd like to get 5 random elements from a List<string> . ...
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How can prepared statements protect from SQL injection attacks?

...ample shows it (all examples in PHP/Mysql): $expected_data = 1; $query = "SELECT * FROM users where id=$expected_data"; will produce a regular query SELECT * FROM users where id=1 while this code $spoiled_data = "1; DROP TABLE users;" $query = "SELECT * FROM users where id=$spoiled_da...
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T-SQL: Opposite to string concatenation - how to split string into multiple records [duplicate]

...12)) RETURNS table AS RETURN ( WITH Pieces(pn, start, stop) AS ( SELECT 1, 1, CHARINDEX(@sep, @s) UNION ALL SELECT pn + 1, stop + 1, CHARINDEX(@sep, @s, stop + 1) FROM Pieces WHERE stop > 0 ) SELECT pn, SUBSTRING(@s, start, CASE WHEN stop > 0 THE...
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How do I query between two dates using MySQL?

...ember 29 2010 and January 30 2010). Try reversing the order of the dates: SELECT * FROM `objects` WHERE (date_field BETWEEN '2010-01-30 14:15:55' AND '2010-09-29 10:15:55') share | improve this an...
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Get records with max value for each group of grouped SQL results

... There's a super-simple way to do this in mysql: select * from (select * from mytable order by `Group`, age desc, Person) x group by `Group` This works because in mysql you're allowed to not aggregate non-group-by columns, in which case mysql just returns the first row. T...