一、mysql的port出现红色感叹号?
原因是以前装过Mysql,没卸载掉(或没完全卸载),精简版的那种Mysql也算。
你的端口3306被占用了,服务名称也占用了,你换个端口和服务名称可以继续安装。如果想用默认的,先删除之前留下来的mysql,或者更改之前mysql的端口和服务名。
这种情况一般都是安装Mysql第一次不完全成功,然后重新安装会发生。
二、外贸中PORT OF LOADING和PORT OF TRANSSHIPMENT什么意思?
装货港口 和 中转港, 比如你货从天津新港(装货港)用A船公司到达香港(中转港),香港经B公司到达特码港。
三、The Difference between Port of Discharge and Port of Loading
When it comes to international trade and shipping, two terms that often come up are "port of discharge" and "port of loading". These terms refer to the specific locations where cargo is unloaded from a ship and loaded onto a ship, respectively. Understanding the difference between these two ports is essential for anyone involved in the logistics industry.
The port of discharge is the port where the cargo is delivered and unloaded from the vessel. It is the final destination port for the cargo and is usually the port closest to the consignee's location. This is the port where the cargo will be cleared through customs and distributed to its intended recipient. It plays a crucial role in the supply chain as it marks the end of the voyage and the beginning of the cargo's onward journey.
On the other hand, the port of loading refers to the port where the cargo is loaded onto a vessel to begin its journey. It is often the port closest to the origin of the cargo, where it is collected from various suppliers or manufacturers. This port serves as the starting point for the shipment and ensures that the cargo is securely loaded onto the appropriate vessel for transportation.
Both the port of discharge and the port of loading are important in the logistics process, but they serve different purposes. The port of discharge is where the cargo is ultimately delivered and distributed, while the port of loading is where the cargo begins its journey. Understanding these distinctions is crucial for proper documentation, tracking, and coordination of shipments.
Key Differences between Port of Discharge and Port of Loading:
- The port of discharge is the final destination port for the cargo, while the port of loading is the starting point of the cargo's journey.
- The port of discharge is where the cargo is unloaded from the vessel, and the port of loading is where the cargo is loaded onto the vessel.
- The port of discharge is usually closer to the consignee's location, while the port of loading is typically closer to the cargo's origin.
- The port of discharge marks the end of the voyage, while the port of loading marks the beginning of the cargo's onward journey.
In conclusion, the port of discharge and the port of loading are two distinct ports in the logistics process. Understanding the difference between these two terms is essential for effective coordination and tracking of cargo shipments. By knowing the roles that each port plays, logistics professionals can ensure that the cargo reaches its final destination smoothly and efficiently.
Thank you for taking the time to read this article and we hope it has provided you with valuable insights into the difference between the port of discharge and the port of loading.
四、port和port lanel区别?
Port和Harbor的主要区别是在范围上: Port是指广泛意义上的港口,比如上海Port,是指上海港,而不会说上海Harbor。 而Harbor是指港池,是指具体的水域,比如上海外高桥码头,可以说成SHANGHAI WAIGAOQIAO Harbor。 还有一个和Port/Harbor相近的词是Berth,就是范围比Harbor还要小的泊位的概念。 区域范围上的区别就是三个词语的差别。
五、mysql中text?
TEXT数据对象对于在MySQL数据库中存储长格式文本字符串很有用。以下是关于TEXT数据类型的一些要点
TEXT是列类型的族,旨在用作大容量字符存储。
实际的TEXT列类型为四种类型-TINYTEXT,TEXT,MEDIUMTEXT和LONGTEXT。
四种TEXT类型彼此非常相似。唯一的区别是每个存储区可以存储的最大数据量。
最小的TEXT类型TINYTEXT与VARCHAR共享相同的字符长度。
TEXT值被视为字符串。
TEXT具有除二进制字符集和排序规则以外的字符集。
比较和排序基于其字符集的排序规则。
无论SQL模式如何,从要插入TEXT列的值截断多余的尾随空格总是会产生警告。
TEXT系列列就像VARCHAR。
TEXT列不能具有DEFAULT值
六、gpio中port和pin的区别?
GPIO中的Port和Pin是两个不同的概念,它们在硬件中有不同的作用和含义。Port是GPIO的接口,通常是指物理上的连接点。每个Port都有一定数量的Pin引脚,用于连接外部设备。例如,一个USB接口通常使用4个Pin引脚,而一个8位单片机则可能有8个Pin引脚。在软件中,Port通常被用来表示不同的硬件设备或模块。Pin则是Port下的具体连接点,即物理上的引脚。每个Pin都可以被用来输入或输出数据。例如,一个IC芯片可能有32个Pin引脚,每个引脚都可以独立地进行输入或输出操作。在软件中,Pin通常被用来表示具体的信号连接点。因此,Port和Pin的主要区别在于物理结构和使用方式上。Port是物理接口,用于连接外部设备;而Pin是Port下的具体连接点,用于传输数据信号。在软件中,Port和Pin都有各自的作用和含义,需要根据具体的应用场景进行选择和使用。
七、port词根?
port是一个英语单词,名词、动词,作名词时意思是“港口,口岸;(计算机的)端口;左舷;舱门”,作及物动词时意思是“持(枪);左转舵”,作不及物动词时意思是“转向左舷”。短语搭配PORT ELIZABETH伊丽莎白港 ; 伊莉莎白港 ; 伊莉沙白港 ; 伊利莎白港Port Moody满地宝 ; 穆迪港 ; 慕迪港Port Wine波特酒 ;[食品]葡萄酒 ; 波酒 ; 钵酒
八、mysql库是MySQL中自带的吗?
mysql库是MySQL中自带的。你在安装完成MySQL之后,需要对数据库进行初始化处理,在初始化处理的时候,就会自动生成mysql库,里面包含用户信息和权限以及数据库的信息和设置,这个库是由MySQL使用的,在用户访问数据库的时候,他就从这个库提取相关信息进行校验。
九、mysql中ws作用?
基本上,MySQL CONCAT_WS()函数用于连接两个或多个字符串以及分隔符。此处,CONCAT_WS()中的关键字WS表示WITH SEPARATOR。我们可以将CONCAT_WS()函数发音为带分隔符的串联函数。
语法CONCAT_WS(Separator, String1,String2,…,StringN)
在这里,CONCAT_WS函数的参数是Separator和需要与该分隔符一起作为单个字符串连接的字符串。除数值外,分隔符必须用引号引起来。
示例mysql> SELECT CONCAT_WS(' ','New', 'Delhi');
+-------------------------------+
| CONCAT_WS(' ','New', 'Delhi') |
+-------------------------------+
| New Delhi |
+-------------------------------+
1 row in set (0.00 sec)
在上面的示例中,我们可以看到字符串“”(即空格)用作分隔符,并插入到需要连接的两个字符串(“新”和“德里”)之间。mysql> SELECT CONCAT_WS(' is our ','Delhi','Capital');
+-----------------------------------------+
| CONCAT_WS(' is our ','Delhi','Capital') |
+-----------------------------------------+
| Delhi is our Capital |
+-----------------------------------------+
1 row in set (0.00 sec)
在上面的示例中,我们可以看到字符串'是我们的'用作分隔符,并插入到两个字符串之间,德里字符串和大写字母需要串联。
十、mysql中info作用?
mysql info函数返回最近一条查询的信息。
如果成功,则返回有关该语句的信息,如果失败,则返回 false。
mysql info返回通过给定的 connection 所进行的最新一条查询的详细信息。如果没有指定 connection,则假定为上一个打开的连接。
mysql info对以下列出的所有语句返回一个字符串:对于其它任何语句返回 false。字符串的格式取决于给出的语句。


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