大约有 6,886 项符合查询结果（耗时：0.0359秒） [XML]
How to drop column with constraint?
...uch as foreign keys, unique and primary key constraints, computed columns, indexes)
CREATE TABLE [dbo].[TestTable]
(
A INT DEFAULT '1' CHECK (A=1),
B INT,
CHECK (A > B)
)
GO
DECLARE @TwoPartTableNameQuoted nvarchar(500) = '[dbo].[TestTable]',
@ColumnNameUnQuoted sysname = 'A',
...
Draw a perfect circle from user's touch
...ounds = new Point[shape.length];
final int STEP = 5;
int index = 0;
Point current = points.get(0);
Type type = null;
for (int i = STEP; i < points.size(); i += STEP) {
Point next = points.get(i);
int dx = next.x - current....
pandas: How do I split text in a column into multiple rows?
...: s = df['Seatblocks'].str.split(' ').apply(Series, 1).stack()
In [45]: s.index = s.index.droplevel(-1) # to line up with df's index
In [46]: s.name = 'Seatblocks' # needs a name to join
In [47]: s
Out[47]:
0 2:218:10:4,6
1 1:13:36:1,12
1 1:13:37:1,13
Name: Seatblocks, dtype: object
In...
@try - catch block in Objective-C
...
All work perfectly :)
NSString *test = @"test";
unichar a;
int index = 5;
@try {
a = [test characterAtIndex:index];
}
@catch (NSException *exception) {
NSLog(@"%@", exception.reason);
NSLog(@"Char at index %d cannot be found", index);
NSLog(@"Max index is: %lu", [...
How to get multiple counts with one SQL query?
... a join of count-subqueries, or nested counts in a select. However with no indexes present, this might be best as you have guaranteed only one table scan vs multiple. See answer from @KevinBalmforth
– YoYo
Apr 1 '17 at 19:20
...
How to deal with SettingWithCopyWarning in Pandas?
...ve) warning. The potential for false positives is addressed in the docs on indexing, if you'd like to read further. You can safely disable this new warning with the following assignment.
import pandas as pd
pd.options.mode.chained_assignment = None # default='warn'
...
JQuery .each() backwards
...
Should be important to note that the index is not reversed, so if you are only wanting to do the last three, for instance, you cannot expect <li>Item 5</li> to have an index of 0.
– pathfinder
Dec 10 '12 at 23:5...
PHP, get file name without file extension
... your path.
Example from the manual:
$path_parts = pathinfo('/www/htdocs/index.html');
echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n";
echo $path_parts['filename'], "\n"; // filename is only since PHP 5.2.0
Output of the code:
/www/ht...
.htaccess mod_rewrite - how to exclude directory from rewrite rule
...ese rules, so they can become accessible. For now all requests are sent to index.php file.
6 Answers
...
Get filename and path from URI from mediastore
...ntentResolver().query(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} finally {
if (cursor != null) {
cursor.close();
}
}
}
...