大约有 44,000 项符合查询结果（耗时：0.0427秒） [XML]
SQL/mysql - Select distinct/UNIQUE but return all columns?
...
You're looking for a group by:
select *
from table
group by field1
Which can occasionally be written with a distinct on statement:
select distinct on field1 *
from table
On most platforms, however, neither of the above will work becau...
How to reset AUTO_INCREMENT in MySQL?
...ou can reset the counter with:
ALTER TABLE tablename AUTO_INCREMENT = 1
For InnoDB you cannot set the auto_increment value lower or equal to the highest current index. (quote from ViralPatel):
Note that you cannot reset the counter to a value less than or equal
to any that have already been...
.NET NewtonSoft JSON deserialize map to a different property name
...
can i use two JsonProperty for one filed?
– Ali Yousefi
May 11 '15 at 19:56
2
...
Lock Escalation - What's happening here?
...n additional ALTER TABLE statement that appears to set the lock escalation for the table to "TABLE". Example:
3 Answers
...
Repeat command automatically in Linux
...ape special characters that are part of the command that you are watching, for example: watch mysql dbname -e \"show processlist\;\"
– pfrenssen
Oct 9 '13 at 11:43
...
How disable Copy, Cut, Select, Select All in UITextView
... operations is to create a subclass of UITextView that overrides the canPerformAction:withSender: method to return NO for actions that you don't want to allow:
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == @selector(paste:))
return NO;
return [super canP...
warning RC2182: duplicate dialog control ID 1002 - C/C++ - 清泛网 - 专注C/C++及内核技术
warning RC2182: duplicate dialog control ID 1002原因：报错行的控件ID值（这里是1002），与其他的控件ID值一样，发生冲突了。解决：resource.h中将值一样的控件ID改为不同的值。原因：报错行的控件ID值（这里是1002），与其他的控件ID值一...
ble 蓝牙透传代码怎么写？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...用我们这个模块这个地址可以吗？
上图中是控制服务id：SERVICEF000_UUUID = UUID.fromString("0000f000-0000-1000-8000-00805f9b34fb");以及2个控制端口的特征id。
可以做到透传，不过要换透传 id，这个 id 是 io 控制口
晚一些我给你一...
Is there any kind of hash code function in JavaScript?
...t. I had the brilliant idea of just using a JavaScript object with objects for the property names. Such as,
20 Answers
...
Return all enumerables with yield return at once; without looping through
I have the following function to get validation errors for a card. My question relates to dealing with GetErrors. Both methods have the same return type IEnumerable<ErrorInfo> .
...