Tag:top

  • Use the top clause to restrict the data updated by the update statement

    Time:2021-7-3

    You can use the top clause to limit the number of rows modified in the update statement. When the top (n) clause is used with update, the delete operation is performed on N randomly selected rows. For example, suppose you want to lighten the sales burden for a senior salesperson and assign some customers to […]

  • Tips of using win32API

    Time:2021-4-4

    Win32 provides the SetForegroundWindow method to set the application to the foreground and activate it. However, in some scenarios, only calling this interface will return 0, that is, the setting fails. For example, the following scenario: The current foreground application is a full screen application, which is not used by the foreground application processProcess.Start()Method to […]

  • Gridea v0.9.0 yes, blogging is back

    Time:2021-3-9

    Yes, blogging is back——From a friend who uses gridea Here is the release log of gridea v0.9.0. If you haven’t heard of it, you might as well click the link below to find out! Gridea – a static blogging client In this update, we addedSFTP deployment(wish success), added a series of new functions and strengthened […]

  • Gridea v0.9.0 yes, blogging is back

    Time:2021-3-8

    Yes, blogging is back——From a friend who uses gridea Here is the release log of gridea v0.9.0. If you haven’t heard of it, you might as well click the link below to find out! Gridea – a static blogging client In this update, we addedSFTP deployment(wish success), added a series of new functions and strengthened […]

  • Tips for using top layout guide and bottom layout guide in IOS development

    Time:2021-2-6

    preface The concept of layoutguide has always been unfamiliar to me in the process of IOS development. Until recently, if you want to understand this detailed knowledge point, you can check it by hand and find that this concept is introduced from the top / bottom layoutguide of ios7 to the uilayoutguide class of ios9, […]

  • After adding position: absolute to the element, you cannot click the solution

    Time:2021-2-3

    Problem Description: A click element is addedposition: absoluteI found that I couldn’t click the attribute. Cause analysis: Most of this is because the element is absolutely positioned and hidden behind other elements.It’s the same as the image in PPT being set at the bottom, but in some cases in HTML, you can still see your […]

  • Young people’s first vscode expansion

    Time:2021-1-17

    preface Into the pitVS CodeBefore, I was already a well tested teacherEmacsOld users, so began to useVS CodeAfter that, I started it for the first timeEmacs Keymap. But I soon found out that this set of key mappings lacked an important shortcut——ctrl-l。 stayEmacsIn the middle,ctrl-lThe corresponding command isrecenter-top-bottom, which is used to scroll the row […]

  • Analysis functions developed by Oracle (top / bottom n, first / last, ntile)

    Time:2020-11-4

    1、 Arrangement with null values: In the previous “Oracle development analysis function (rank, dense”_ rank、row_ In the article number), we have already known how to arrange a batch of records in whole or in groups. What if the permutation contains null values? Copy codeThe code is as follows: SQL> select region_id, customer_id,          sum(customer_sales) cust_sales, […]

  • Sample collection of top command for process display in Linux

    Time:2020-7-20

    The top command in Linux shows the running process on the system. It is one of the most important tools for system administrators. It is widely used to monitor server load. In this article, we’ll explore the details of the top command. The top command is an interactive command. You can also run a lot […]

  • How to use top in Linux command

    Time:2020-6-3

    Top is a dynamic display process, that is, the current status can be refreshed continuously by pressing the user’s key. If the command is executed in the foreground, it will exclusively display the CPU, memory usage and execution time in the foreground until the program is terminated by pressing Ctrl + C. Top command is […]

  • Implementation of select top n in Oracle

    Time:2020-5-8

    1. Implement select top n in Oracle Because Oracle does not support the select top statement, the combination of order by and rownum is often used to implement the query of select top n in Oracle. In short, the implementation method is as follows: Select column name 1… Column name n from (Select column name […]

  • A tutorial on the installation and command use of process management tool htop in Linux

    Time:2020-1-25

    1. Introduction to htopHtop is a software running in Linux system monitoring and process management, which is used to replace the traditional top under UNIX. Unlike top, which only provides the list of processes that consume the most resources, htop provides the list of all processes, and uses color to identify the processor, swap and […]