大约有 44,000 项符合查询结果(耗时:0.0313秒) [XML]

https://stackoverflow.com/ques... 

How do I show the number keyboard on an EditText in android?

...found this implementation useful, shows a better keyboard and limits input chars. <EditText android:inputType="phone" android:digits="1234567890" ... /> Additionally, you could use android:maxLength to limit the max amount of numbers. To do this programmatically: editText.set...
https://stackoverflow.com/ques... 

How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?

...and re-try where necessary. Some attempted solutions also fail to consider SELECT races. If you try the obvious and simple: -- THIS IS WRONG. DO NOT COPY IT. It's an EXAMPLE. BEGIN; UPDATE testtable SET somedata = 'blah' WHERE id = 2; -- Remember, this is WRONG. Do NOT COPY IT. INSERT INTO testt...
https://stackoverflow.com/ques... 

Why does MYSQL higher LIMIT offset slow the query down?

...h more than 16 million records [2GB in size]. The higher LIMIT offset with SELECT, the slower the query becomes, when using ORDER BY *primary_key* ...
https://stackoverflow.com/ques... 

List all sequences in a Postgres db 8.1 with SQL

... The following query gives names of all sequences. SELECT c.relname FROM pg_class c WHERE c.relkind = 'S'; Typically a sequence is named as ${table}_id_seq. Simple regex pattern matching will give you the table name. To get last value of a sequence use the following query:...
https://stackoverflow.com/ques... 

Best way to do multi-row insert in Oracle?

...acle: insert into pager (PAG_ID,PAG_PARENT,PAG_NAME,PAG_ACTIVE) select 8000,0,'Multi 8000',1 from dual union all select 8001,0,'Multi 8001',1 from dual The thing to remember here is to use the from dual statement. (source) ...
https://stackoverflow.com/ques... 

Reset auto increment counter in postgres

... Does anyone know why ALTER SEQUENCE product_id_seq RESTART WITH (SELECT MAX(id) from product); Doesn't work? The only way I found is to use two separate queries. – Chris Huang-Leaver Dec 20 '18 at 3:14 ...
https://stackoverflow.com/ques... 

How to remove all line breaks from a string

...\r\n, on WinDOS). (Contrary to another answer, this has nothing to do with character encoding.) Therefore, the most efficient RegExp literal to match all variants is /\r?\n|\r/ If you want to match all newlines in a string, use a global match, /\r?\n|\r/g respectively. Then proceed with the ...
https://stackoverflow.com/ques... 

Check if a row exists, otherwise insert

... I assume a single row for each flight? If so: IF EXISTS (SELECT * FROM Bookings WHERE FLightID = @Id) BEGIN --UPDATE HERE END ELSE BEGIN -- INSERT HERE END I assume what I said, as your way of doing things can overbook a flight, as it will insert a new row when there are 1...
https://stackoverflow.com/ques... 

How to select an option from drop down using Selenium WebDriver C#?

I was trying for my web test selecting an option. An example can be found here: http://www.tizag.com/phpT/examples/formex.php ...
https://stackoverflow.com/ques... 

Extract file basename without path and extension in bash [duplicate]

...til item #7 below). 1st pattern: *\/ matches anything before a literal "/" char. pattern separator | which in this instance acts like a logical OR. 2nd pattern: .* matches anything after a literal "." -- that is, in bash the "." is just a period char, and not a regex dot. ) end pattern list. } end ...