convert

本文翻译自官网： https://ci.apache.org/projects/flink/flink-docs-release-1.9/dev/table/common.html Table API和SQL集成在共同API中。 该API的中心概念是 Table ，用作查询的输入和输出。 本文档介绍了使用Table API和SQL查询的程序的通用结构，如何注册 Table ，如何查询 Table 以及如何发出 Table（数据） 。 两个 planner 之间的主要区别 表API和SQL程序的结构 创建一个TableEnvironment 在 Catalog 中注册表 注册表格 注册一个TableSource 注册一个TableSink 注册 扩展 Catalog 查询表 表API SQL 混合 表API和SQL 发出表 (数据) 翻译并执行查询 与DataStream和DataSet API集成 Scala的隐式转换 将DataStream或DataSet注册为表 将DataStream或DataSet转换为表 将表转换为DataStream或DataSet 数据类型到表结构的映射 查询优化 解释表 两个 planner 之间的主要区别 Blink将批处理作业视为流的特殊情况。 因此，还不支持Table和DataSet之间的转换，并且批处理作业不会转换成DateSet ，而是

一. 时间转换 Sybase 时间处理Convert 的使用 1. 怎样将datetime类型的日期转换为yyyy-mm-dd格式 SELECT STR_REPLACE(CONVERT(VARCHAR, GETDATE(), 111) ,'/','-'); 2. DateTime转换成Varchar样式 语句及查询结果： Select CONVERT(varchar(100), GETDATE(), 0): 05 16 2006 10:57AM Select CONVERT(varchar(100), GETDATE(), 1): 05/16/06 Select CONVERT(varchar(100), GETDATE(), 2): 06.05.16 Select CONVERT(varchar(100), GETDATE(), 3): 16/05/06 Select CONVERT(varchar(100), GETDATE(), 4): 16.05.06 Select CONVERT(varchar(100), GETDATE(), 5): 16-05-06 Select CONVERT(varchar(100), GETDATE(), 6): 16 05 06 Select CONVERT(varchar(100), GETDATE(), 7): 05 16, 06

自定转换器： package com.comon.utils; import java.io.IOException; import java.io.Serializable; import javax.persistence.AttributeConverter; import com.fasterxml.jackson.databind.ObjectMapper; import lombok.extern.slf4j.Slf4j; @Slf4j public class JpaConverterJsonUtils implements AttributeConverter<Object,String>,Serializable { /** * */ private static final long serialVersionUID = 1L; private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper(); public String convertToDatabaseColumn(Object attribute) { try { return OBJECT_MAPPER.writeValueAsString(attribute); } catch (Exception e) { log.error(

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am writing a tool that will take an inbound Json object, and convert it to key-value records (sometimes called flattening, maybe). The aim is to avoid the tool breaking if it gets a very large or very nested Json object, so I would like to avoid recursion. An example object might be like this (below), containing nested arrays, empty values, you name it, literally any legal json... { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 25, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY",

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Could somebody tell me how to convert double precision into network byte ordering. I tried uint32_t htonl(uint32_t hostlong); uint16_t htons(uint16_t hostshort); uint32_t ntohl(uint32_t netlong); uint16_t ntohs(uint16_t netshort); functions and they worked well but none of them does double (float) conversion because these types are different on every architecture. And through the XDR i found double-float precision format representations ( http://en.wikipedia.org/wiki/Double_precision ) but no byte ordering there. So, I would much appreciate

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am using class iTextSharp.tool.xml.XMLWorkerHelper to add text in HTML format into a pdf file in a ASP .NET C# project. Here's my code : Paragraph bookingTemplateDescriptionContent = new Paragraph(); desc.Content = desc.Content.Replace("</br>", "<br/>"); //HACK : To avoid exception, replace the br tag in HTML formatted to XHTML formatted ElementList list = XMLWorkerHelper.ParseToElementList(desc.Content, null); foreach (var element in list) { foreach (Chunk chunk in element.Chunks) { chunk.Font = bookingTemplateDescFont; }

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm using class Transliterator of the icu project to convert from half-width to full-width characters like this: The result of converted is: コンニチハ (full-width) But: String converted = transliterator.transliterate("コンニチハ"); //full-width The result of converted is still: コンニチハ (full-width) My expectation is . Can anyone help me solve this? Thanks. 回答1: I found the answer here . It's so simple by using different params as below: converted value: コンニチハ Transliterator transliterator = Transliterator.getInstance("Fullwidth-Halfwidth"); String

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I would like to migrate from GCC to the new ARM COMPILER 6. But I'm not able to well convert the Gnu liker script (ld) to the equivalent of ARM Scatter file. The Original Code is as following: arm-none-eabi-ld -T link.ld test.o shared/bootcode.o shared/vertors.o -o test.elf Where link.ld script is as following ENTRY(bootcode) SECTIONS { . = 0x00000000; /* Code starts with vectors, then bootcode, then other code */ .text : { *vectors.o(vectors) *bootcode.o(boot) *(.text) /* remainder of code */ } =0 .data : { *(.data) } .bss : { *(.bss) } /*

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have some sliders in my application that allows the user to change ARGB colors, however I need to convert these values to a hex value like 0xff000000, which is solid black. This is what I have so far: protected int toHex(Color col) { String as = pad(Integer.toHexString(col.getAlpha())); String rs = pad(Integer.toHexString(col.getRed())); String gs = pad(Integer.toHexString(col.getGreen())); String bs = pad(Integer.toHexString(col.getBlue())); String hex = "0x" + as + rs + gs + bs; return Integer.parseInt(hex, 16); } private static final

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am writing a type converter for my Room database. I have a couple custom enum classes and I want to convert all of them to its ordinals when stored in the database. So, instead of writing the following for every single class, is there any way to simplify it (such as pass in a generic enum type)? class Converter { @TypeConverter fun toOrdinal(type: TypeA): Int = type.ordinal @TypeConverter fun toTypeA(ordinal: Int): TypeA = TypeA.values().first { it.ordinal == ordinal } @TypeConverter fun toOrdinal(type: TypeB): Int = type.ordinal