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Basic Grammar Hello World of plsql set serveroutput on --Print Hello World declare --Explanation section(Variable, cursor or exception description) begin --Program body ( DML Statement) dbms_output.put_line('Hello World'); end; Use of basic variable types -- Use basic variable types declare --Define basic variable types ...

wego/config introduce wego/config is a GO language version of ini configuration file parsing tool. wego/config has the following characteristics: First prepare the app Conf configuration file: 1)Provided GetString,GetInt...as well as MustrString,MustInt...Function to facilitate the acquisition of configuration data. 2)Support through struct ...

1, Installing YUM Repo 1. Download command: wget https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm 2, To install repo: rpm -ivh mysql57-community-release-el7-9.noarch.rpm [root@VM-0-10-centos server]# rpm -ivh mysql57-community-release-el7-9.noarch.rpm warning: mysql57-community-release-el7-9.noarch.rpm: He ...

Meaning of different file colors Color modification:[root@fyr ~]# ls --color=no / / turn off color [root@fyr ~]# ls --color=yes / / open color Black: ordinary file (e.g. txt)Blue: folderSky blue: linked filesGreen: executableRed: compressed fileYellow: block device files (e.g. hard disk, U SB flash disk) Expansion: -Ordinary ...

Background description An LDAP Sync windows system application made by my department can upload user Directory Server data, including LDAP User and LDAP Group, to our products. The application is developed with C# and uses C# system DirectoryServices. Protocols. DLL library (which provides a series of LDAP API s). On my computer, the path ...

Front end project optimization and launch Configure the webpack according to the actual situation of your project. Here is just a reference for understanding many functions on the line. optimization problem Project optimization strategy steps and detailed installation configuration 1.Generate packaged Report=>There are two ways to intuit ...

1, Virtual environment 1. Download conda (skip if conda already exists) wget -c https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh 2. Add permissions chmod 777 Miniconda3-latest-Linux-x86_64.sh 3. Operation sh Miniconda3-latest-Linux-x86_64.sh (1) There will be two prompts in the middle. Press enter for the first on ...

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catalogue 1, PC side web page effects 1. Element offset offset series 1.1 offset overview 1.2 difference between offset and style Case: coordinates of the mouse in the box Case: modal box drag Case: imitation Jingdong magnifying glass effect 2. Element visual area client series Case: Taobao flexible JS source code analysis 3. Element ...

catalogue   preface Basic introduction Function introduction Memory operation CAS related Thread scheduling Class correlation Object operation Array correlation Memory barrier System related epilogue reference material Introduction to the author preface Unsafe is located in sun A class under misc package mainly provides some m ...