大约有 43,200 项符合查询结果（耗时：0.0765秒） [XML]
Execute AsyncTask several times
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217
AsyncTask instances can only be used one time.
Instead, just call your task like new MyAsyncTas...
WITH (NOLOCK) vs SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
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106
They are the same thing. If you use the set transaction isolation level statement, it will app...
How do I automatically update a timestamp in PostgreSQL
...ULT value:
CREATE TABLE users (
id serial not null,
firstname varchar(100),
middlename varchar(100),
lastname varchar(100),
email varchar(200),
timestamp timestamp default current_timestamp
)
Note that the value for that column can explicitly be overwritten by supplying a value in the...
Real mouse position in canvas [duplicate]
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The Simple 1:1 Scenario
For situations where the canvas element is 1:1 compared to the bitmap size, you can get the mouse positions by using this snippet:
function getMousePos(canvas, evt) {
var rect = canvas.getBoundingClientRect...
How to change column datatype from character to numeric in PostgreSQL 8.4
...ending on your data):
alter table presales alter column code type numeric(10,0) using code::numeric;
-- Or if you prefer standard casting...
alter table presales alter column code type numeric(10,0) using cast(code as numeric);
This will fail if you have anything in code that cannot be cast to nu...
Redo merge of just a single file
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181
It seems I was just looking in the wrong place. The solution turned out to be quite simple.
g...
Spring: how do I inject an HttpServletRequest into a request-scoped bean?
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115
Request-scoped beans can be autowired with the request object.
private @Autowired HttpServlet...
What's the UIScrollView contentInset property for?
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241
It sets the distance of the inset between the content view and the enclosing scroll view.
Obj-C...