大约有 19,000 项符合查询结果（耗时：0.0285秒） [XML]
SQLiteDatabase.query method
... be used.
selection String: A filter declaring which rows to return, formatted as an SQL WHERE clause (excluding the WHERE itself). Passing
null will return all rows for the given table.
selectionArgs String: You may include ?s in selection, which will be replaced by the values from se...
MySQL order by before group by
... (`id`, `title`, `post_date`, `post_author`)
VALUES
(1, 'Title1', '2013-01-01 00:00:00', 'Jim'),
(2, 'Title2', '2013-02-01 00:00:00', 'Jim')
;
The subquery is going to return the max date and author of:
MaxPostDate | Author
2/1/2013 | Jim
Then since you are joining that back to th...
Only parameterless constructors and initializers are supported in LINQ to Entities
...
This solves the problem form me. Actually this query with struct selector is supported in LINQ-2-SQL and it is an issue when you are upgrading to EntityFramework.
– Tomas Kubes
Sep 26 '15 at 15:59
...
Find objects between two dates MongoDB
...eems to work.
items.save({
name: "example",
created_at: ISODate("2010-04-30T00:00:00.000Z")
})
items.find({
created_at: {
$gte: ISODate("2010-04-29T00:00:00.000Z"),
$lt: ISODate("2010-05-01T00:00:00.000Z")
}
})
=> { "_id" : ObjectId("4c0791e2b9ec877893f3363b"), "n...
Strangest language feature
...indexed like so:
a[10]
which is very common.
However, the lesser known form (which really does work!) is:
10[a]
which means the same as the above.
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edited Jan 3 '1...
ExpandableListView - hide indicator for groups with no children
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This code do not work form me either (tested on Android 4.4).Unexpanded group is considered as empty (no children) so the icon is set to color/transparent.
– Guicara
Jul 5 '14 at 16:40
...
Is it possible to Pivot data using LINQ?
...l shape). To pivot, you must project the hierarchy back into a row/column form of your choosing.
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Check whether an array is a subset of another
... condition, while the others continue searching. Below is the optimal long form of the solution, which is only marginally faster in my tests than the above shorthand solution.
bool isSubset = true;
foreach (var element in t2) {
if (!t1.Contains(element)) {
isSubset = false;
brea...
How to represent multiple conditions in a shell if statement?
...
Good solution, but I like the form without all the parenthesis and brackets: if test "$g" -eq 1 -a "$c" = "123" || test "$g" -eq 2 -a "$c" = "456"; then ...
– Mogens TrasherDK
Mar 17 '18 at 7:06
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Is it possible to specify a starting number for an ordered list?
...mber to be 6. I found that this was supported (now deprecated) in HTML 4.01. In this specification they say that you can specify the starting integer by using CSS. (instead of the start attribute)
...