转载: ORACLE-BASE - SQL/XML (SQLX) : Generating XML using SQL The example code in this article assumes you have access to the SCOTT schema. # The Past In Oracle 9i Release 1 it was necessary to use several database object types to create complex XML documents using...

转载: ORACLE-BASE - XMLTABLE : Convert XML Data into Rows and Columns using SQL # Tag-Based XML This example uses tag-based XML, where each data element for an employee is surrounded by its own start and end tag. First we create a table to hold our XML document and populate it with a document...

# xlrd xlrd 读取 excel, 使用 xlrd 读取 excel 数据需要注意的类型. Sample Type symbol Type number Python value Converted value XL_CELL_EMPTY 0 empty string ‘’ None abc XL_CELL_TEXT 1 a Unicode string 123 XL_CELL_TEXT 1 a Unicode string 123.0 XL_CELL_TEXT 1 a Unicode...

转载: 前端 Cheat Sheet 分享 | cheatsheet-frontend 转载: AakashRao-dev/CSS-Cheatsheets: Get all of my CSS Cheatsheets from here which I have created & shared on twitter. Thanks for the support. 💜 Rico’s cheatsheets # HTML Head # HTML Input Types # CSS Units # CSS BoxModel # CSS FlexBox # CSS...

转载: ORACLE-BASE - WITH Clause : Subquery Factoring in Oracle # Setup The examples below use the following tables. 12345678910111213141516171819202122232425262728293031323334353637383940-- DROP TABLE EMP PURGE;-- DROP TABLE DEPT PURGE;CREATE TABLE DEPT ( DEPTNO NUMBER(2) CONSTRAINT PK_DEPT PRIMARY...

转载: PL/SQL RAISE Exceptions By Practical Examples Summary: in this tutorial, you will learn how to use the PL/SQL RAISE statement to raise a user-defined exception, internally defined exception, and reraising an exception. To raise an exception explicitly, you use the RAISE statement. The RAISE...

# python call go go 文件添加导入 import "C" go 文件在需要导出的函数上添加注释 //export run 执行构建 go build -buildmode=c-shared -o test.so test.go python 文件 使用 CDLL 导入 so CDLL('./utils/test.so').run utils/test.go 1234567891011121314package mainimport "C"//export runfunc run(n...

# Excel to Oracle **pandas.DataFrame.to_sql¶** DataFrame.to_sql(*self*, *name*, *con*, *schema=None*, *if_exists='fail'*, *index=True*, *index_label=None*, *chunksize=None*, *dtype=None*, *method=None*) Write records stored in a DataFrame to a SQL database. Databases supported by SQLAlchemy...

# Java PlaySound 播放 mp3 音乐，需要添加 mp3plugin.jar 12345678910111213141516171819202122232425package com.jbn.example.other;import javax.sound.sampled.*;import java.io.IOException;import java.io.InputStream;public class PlaySound { public static void main(String ... args){ try {...