大约有 40,000 项符合查询结果（耗时：0.0387秒） [XML]
Data Modeling with Kafka? Topics and Partitions
... a topic is a grouping of messages of a similar type that will be consumed by the same type of consumer so in the example above, I would just have a single topic and if you´ll decide to push some other kind of data through Kafka, you can add a new topic for that later.
Topics are registered in Zoo...
Right Align button in horizontal LinearLayout
...=0 makes sure it's not visible. Width=0 is because the width is determined by the LinearLayout based on weight=1. This means that the spacer view will stretch as much as possible in the direction (orientation) of the LinearLayout.
Note that you should use android.widget.Space or android.support.v4....
How can I get the corresponding table header (th) from a table cell (td)?
...
You can do it by using the td's index:
var tdIndex = $td.index() + 1;
var $th = $('#table tr').find('th:nth-child(' + tdIndex + ')');
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Android: checkbox listener
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Try this:
satView = (CheckBox) findViewById(R.id.sateliteCheckBox);
satView.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (buttonView.isCheck...
What does [object Object] mean?
...he tools included in browsers like Firefox or Chrome to introspect objects by doing console.log(whichIsVisible()) instead of alert.
Sidenote: IDs should not start with digits.
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Multiple queries executed in java in single statement
...E;"
Yes it is possible. There are two ways, as far as I know. They are
By setting database connection property to allow multiple queries,
separated by a semi-colon by default.
By calling a stored procedure that returns cursors implicit.
Following examples demonstrate the above two possibilitie...
How do I concatenate strings and variables in PowerShell?
...ry good for doing multiline SQL statements! Why doesn't powershell do this by default!?
– Brain2000
Dec 12 '18 at 5:26
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Cast Int to enum in Java
... practice to convert int to enum, and i think you can simplify the problem by public static A GetValue(int _id) { for(A a:A.values() { if(a.getId()==_id) { return a; }} return null; } Get rid of the None, isEmpty() and compare() stuff.
– Chris.Zou
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jQuery Ajax File Upload
...is not possible through AJAX.
You can upload file, without refreshing page by using IFrame.
You can check further details here.
UPDATE
With XHR2, File upload through AJAX is supported. E.g. through FormData object, but unfortunately it is not supported by all/old browsers.
FormData support star...
Unknown Column In Where Clause
...alias is used
as the expression's column name and
can be used in GROUP BY, ORDER BY, or
HAVING clauses."
(...)
It is not permissible to refer to a column alias in a WHERE clause,
because the column value might not yet be determined when the WHERE
clause is executed. See Section B.5.4...