大约有 40,000 项符合查询结果(耗时:0.0394秒) [XML]
In a storyboard, how do I make a custom cell for use with multiple controllers?
... = [controller.tableView indexPathForCell:self];
[controller.tableView selectRowAtIndexPath:path animated:NO scrollPosition:UITableViewScrollPositionNone];
[controller performSegueWithIdentifier:@"FinishedTask" sender:controller];
[super touchesEnded:touches withEvent:event];
}
@end
I...
How to create id with AUTO_INCREMENT on Oracle?
...LACE TRIGGER dept_bir
BEFORE INSERT ON departments
FOR EACH ROW
BEGIN
SELECT dept_seq.NEXTVAL
INTO :new.id
FROM dual;
END;
/
UPDATE:
IDENTITY column is now available on Oracle 12c:
create table t1 (
c1 NUMBER GENERATED by default on null as IDENTITY,
c2 VARCHAR2(10)
);
...
How can you represent inheritance in a database?
...is is how you would have to query all the policies regardless of the type:
SELECT date_issued, other_common_fields, 'MOTOR' AS type
FROM policies_motor
UNION ALL
SELECT date_issued, other_common_fields, 'PROPERTY' AS type
FROM policies_property;
Note how adding new subtypes woul...
Fixing “Lock wait timeout exceeded; try restarting transaction” for a 'stuck" Mysql table?
...
You can check the currently running transactions with
SELECT * FROM `information_schema`.`innodb_trx` ORDER BY `trx_started`
Your transaction should be one of the first, because it's the oldest in the list. Now just take the value from trx_mysql_thread_id and send it the KILL ...
“Inspect” a hover element?
...if this is just a problem on my PC or not, but I can't see the menu option selected via keyboard and the shortcut key (ctrl-shift-I) doesn't work while the dropdown menu is visible, so since inspect element is the last option on the dropdown, I used up-arrow key to wrap-around to the last item and h...
sql “LIKE” equivalent in django query
... = table.objects.filter(string__contains='pattern')
The SQL equivalent is
SELECT ... WHERE string LIKE '%pattern%';
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Intelli J IDEA takes forever to update indices
...ks perfectly. Thanks for the solution friends.
Just:
Open IntelliJ IDEA
Select the File menu
Select the Invalidate Caches / Restart... menu.
Once selected you get a pop-up with a bunch of options.
Select Invalidate and Restart
and before doing that make sure you saved all your changes else it mig...
Does Eclipse have line-wrap
...s->Java->Code Style->Formatter, then click on the Edit button and select the Comments tab. I like Line Width for Comments to be 120.
Code line wrapping is set nearby, in Preferences->Java->Code Style- >Formatter, then click on the Edit button and select the Line Wrapping tab. I ...
List of ANSI color escape sequences
...
The ANSI escape sequences you're looking for are the Select Graphic Rendition subset. All of these have the form
\033[XXXm
where XXX is a series of semicolon-separated parameters.
To say, make text red, bold, and underlined (we'll discuss many other options below) in C you mig...
How to scroll to top of long ScrollView layout?
... This also has the advantage over fullScroll() in that it keeps the selected item still selected after the move. With fullScroll(), the first item in the scrollview was reselected each time in my case, independent of the selected item before the scroll moved upwards.
– ...