Category:Blogs

  • Query SAP multiple database table sizes

    Time:2020-7-13

    Query SAP multiple database table sizes https://www.cnblogs.com/ken-yu/p/12973009.html Item code db02 Here are two approaches, In the first graphical interface, the results of the query data table are displayed in MB, and only one table can be queried at a time. SPACE—Segments—Detailed Analysis—Detailed Analysis  In the pop-up window segment / object, enter the name of the […]

  • Simple exploration of data internal storage structure of SQL Server

    Time:2020-7-13

    Databases often need to deal with each other, but never thought about how to store data inside the database. Today, we will explore how to store data in the database from the following aspects How to store data in database How to store index data Operational data impact on storage summary How to store data […]

  • Explain IOS project and targets configuration in detail

    Time:2020-7-13

    Recently, I started to learn the development process and ideas of complete IOS project. In the actual project development process, we usually need to version control and manage the project code and data. Generally, SVN or GitHub is commonly used for code version control and project management. Xcode, the development tool of our IOS project, […]

  • Oracle database opatch patch operation process

    Time:2020-7-13

    1、 Preparation before upgrading 1. Confirm database version Use DBA login to query the version of the current database SQL> select * from v$version; BANNER —————————————————————- Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 – 64bi PL/SQL Release 10.2.0.5.0 – Production CORE 10.2.0.5.0 Production TNS for 64-bit Windows: Version 10.2.0.5.0 – Production NLSRTL Version 10.2.0.5.0 – […]

  • How to use MySQL explain

    Time:2020-7-13

    In our daily work, we sometimes slow down the query to record some SQL statements that have been executed for a long time. Finding out these SQL statements does not mean that it is finished. Sometimes, we often use the command explain to check the execution plan of these SQL statements to see whether the […]

  • Implementation method of related constraints for SQL server to create database and data table

    Time:2020-7-13

    This paper analyzes the implementation method of SQL server to create database and data table. For your reference, the details are as follows: The syntax for creating constraints is as follows: CREATE DATABASE [test] ON (NAME=N’test’,FILENAME=N’d:\SQL2kt_Data\test.mdf’,SIZE=3mb,MAXSIZE=UNLIMITED,FILEGROWTH=1MB) LOG ON (NAME=N’test_log’,FILENAME=N’d:\SQL2kt_Data\test_log.ldf’,SIZE=1MB,MAXSIZE=2048MB,FILEGROWTH=10%) GO Term interpretation (translation) constraint 1. Constraint; restriction [C] [(+ on)] legal constraints on the company’s […]

  • Complete example of JS document form form element operation

    Time:2020-7-13

    This paper describes the operation of JS document form form elements. For your reference, the details are as follows: <html> <head> < title > formform operation <meta charset=”UTF-8″/> <script type=”text/javascript”> function testForm(){ //The first way to get the form object is through ID, which is a common method var fm=document.getElementById(“fm”); Alert (FM); // output the […]

  • WPF beads effect button group implementation tutorial

    Time:2020-7-13

    design sketch Related knowledge This part is basically nonsense. You can find it on the Internet. I just sorted out the following. I suggest not to read it. You can come back and have a look when you use it Bezier curve Let’s take a look at two sets of graphs to help you understand […]

  • How to use PHP time function

    Time:2020-7-13

    In the development of PHP, the use of time function can be said to be everywhere, and there are many ways to operate time in PHP, such as PHP timestamp, conversion between date and timestamp, obtaining the current date, time before or after the current time, and so on. Let’s talk about the use of […]

  • Implementation of HTML5 video auto crossing from adaptive page and click play function

    Time:2020-7-13

    preface This code is applicable to 1920 * 1080 video. If it is a video of other sizes, you need to change several numbers in JS code to recalculate the video width and height design sketch As shown in the figure, In the long screen mobile phone, the horizontal video is full of height, and […]

  • HTML table table table data to JSON format example code

    Time:2020-7-13

    The JavaScript function for converting table data to JSON format is as follows Copy code The code is as follows: <script> var keysArr = new Array(“key0”, “key1″,”key2”); Function tabletojson (tableid) {/ / tableid is the table name of the table you want to convert. It is a string, such as “example”var rows = document.getElementById (tableid). […]

  • CSS implementation of div Concave Angle Style example code

    Time:2020-7-13

    In normal development, we usually use the rounded corners to be convex, that is, the border radius attribute. If there is a concave angle, there are two ways to realize it. One is to use the background image directly, the other is to use CSS. The attributes used are background or background image combined with […]