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What is the MySQL VARCHAR max size?
...r, note that the limit is lower if you use a multi-byte character set like utf8 or utf8mb4.
Use TEXT types inorder to overcome row size limit.
The four TEXT types are TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT. These correspond to the four BLOB types and have the same maximum lengths and storage ...
App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
...传输数据报
UrsAI2UDP 拓展用法
发送和接收文本 (URSAI2UDPTest)
发送和接收字节数组 (UDPBinaryTest)
« 返回首页 Iot 专题
拓展下载:
UrsAI2UDP.zip
demo下载:
CLOUD_REMOTE_VIDEO_CAR.aia
原作者开发动机
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Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence
...t; json_string = json.dumps("ברי צקלה", ensure_ascii=False).encode('utf8')
>>> json_string
b'"\xd7\x91\xd7\xa8\xd7\x99 \xd7\xa6\xd7\xa7\xd7\x9c\xd7\x94"'
>>> print(json_string.decode())
"ברי צקלה"
If you are writing to a file, just use json.dump() and leave it to th...
Storing money in a decimal column - what precision and scale?
...oice (a quick Google bears this out). I think this originates from the old VBA/Access/Jet Currency data type, being the first fixed point decimal type in the language; Decimal only came in 'version 1.0' style (i.e. not fully implemented) in VB6/VBA6/Jet 4.0.
The rule of thumb for storage of fixed p...
地图组件(高德地图) · App Inventor 2 中文网
...完成并返回数据的事件。提供以下参数:
方向列表:文本方向列表,例如“在中山大道左转”。
坐标列表:表示要走路径的点(纬度,经度)列表。可将其传递给 线段 的 点列表,以便在 地图 上绘制线路。
距离:路线...
Laravel migration: unique key is too long, even if specified
...aware that VARCHAR may have 1, 2 or 4 bytes for each length unit. Example: utf8_mb4 (4 bytes) -> 767 / 4 = 191. Otherwise utf8_general_ci for VARCHAR(X) with X < 85 ( 1 byte ) = O(85) , or utf8_general_ci for VARCHAR(X) with X >= 86 ( 2 bytes ) -> 767 / 2 = 383. Consider also other colum...
How to fix “Incorrect string value” errors?
...ing value errors, I went though and switched many text columns to use the utf8 column charset and the default column collate ( utf8_general_ci ) so that it would accept them. This fixed most of the errors, and made the application stop getting sql errors when it hit non-latin emails, too.
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SET NAMES utf8 in MySQL?
... 'ö' and 'ñ' are extended ASCII. Would you still need to SET NAMES UTF8 for them?
– Tim
Jun 26 '11 at 7:12
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基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... Secret了。
下面继续做我们的微博应用,发消息一般都是文本形式的,不过有中国特色的微博开放平台支持文本加图片的方式:图片上传到服务器,但本身并不参与签名。这和标准OAuth是冲突的,所以要扩展一下PECL OAuth,并且尽...
Write text files without Byte Order Mark (BOM)?
I am trying to create a text file using VB.Net with UTF8 encoding, without BOM. Can anybody help me, how to do this?
I can write file with UTF8 encoding but, how to remove Byte Order Mark from it?
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