How to Change/Modify Column Type in PostgreSQL
To change or alter the data type of a specific table’s column, the ALTER TABLE command is used along with the ALTER COLUMN and TYPE clauses.
How to Rename the columns of a table in PostgreSQL
To rename the columns of the table in PostgreSQL, we can use the ALTER TABLE statement along with the RENAME COLUMN clause.
How to Create a Table in Postgres
To create a table in PostgreSQL, execute the CREATE TABLE statement either in pgAdmin or in psql. Postgres tables can also be created manually using pgAdmin.
How to Create a Database in Postgres
To create a database in PostgreSQL, execute the “CREATE DATABASE” command in the SQL Shell or pgAdmin. Users can also create databases manually using pgAdmin
How to Add Columns to a Table in PostgreSQL
In PostgreSQL, execute the ALTER TABLE statement along with the ADD COLUMN clause to add a new column to an already existing table.
How to Drop Columns From a Table in PostgreSQL
To drop/delete a column from a PostgreSQL table, we can use the ALTER TABLE statement and the DROP COLUMN clause together.
How to Drop a Table in Postgres
Execute the DROP TABLE command either in SQL Shell or in pgAdmin to drop a particular table in Postgres. A table can also be dropped manually using pgAdmin.
How to Drop a Database in PostgreSQL
To drop a database in PostgreSQL, the DROP DATABASE command can be executed either within the SQL Shell (psql) or pgAdmin.
How to Switch a Database in Postgres
To switch a database in Postgres, execute the “\c db_name” or “\connect db_name” command in psql. Or you can switch a database manually using pgAdmin.
Share Sound on Discord
To share the sound on Discord, you can either use the drag and drop method, the default method of uploading files, or use a third-party application.
How Do I Mount a CIFS Share?
The CIFS share is mounted when the mount command is used with the cifs-utility. To automatically mount, credentials are added in the/etc/fstab file.
9 Linux Destructive Commands You Should Never Run
10 commands that can be destructive to Linux OS are explained in this blog, and users should avoid running these commands.
Has netstat Been Replaced With a New Tool?
Yes, the netstat is depreciated since the release of Debian 9 and is replaced by a newer “ss” command. The ss command provides more features with better speed.
How to Reattach to an Existing “screen” Session?
To reattach an existing screen session, use the “screen” tool followed by the “-r(reattach)” argument and the “SID” or the “specific session name”.
What is gdm3, kdm, lightdm? How to Install and Remove them on Ubuntu?
gdm3, kdm, and lightdm are display managers of Linux that provide the interface for the login screen and can be installed or uninstalled.
[Fixed] “Hostname: Name or Service not Known” Error?
The error is caused when the user tries to change the hostname, which is not found in the /etc/hosts file, and it is fixed by adding the hostname to that file.
How to Use Undo Functionality in Nano?
Different errors can be made while editing a text file using nano; use the “ALT+U” key to undo the operations and “CTRL+E” to redo the changes made.
Why Does Find -mtime +1 Only Return Files Older Than 2 Days?
The find -mtime +1 only returns files older than two days because it only returns the files modified in the last two or less than two days.
How to Completely Uninstall Docker?
While uninstalling docker, a few configuration files and components must be manually deleted through a series of commands which require execution one by one.
How to Reduce a Video Size With FFmpeg?
Sharing large videos takes a lot of time, so FFmpeg is used to manipulate videos, change resolutions, and trim so that the size is reduced.
How to Use SCP with PEM File?
To create a “.pem” file using the SCP, use the “ssh-keygen -f ~/.ssh/id_rsa -e -m pem” command. Then, upload or download a file or directory using SCP.
How to Fix Disk Quota Exceeded in Linux?
When a user exceeds the assigned disk quota, it causes “Disk Quota Exceeded,” which is fixed by freeing the disk space or getting more quota.
KDE vs GNOME | Everything You Need to Know
Explore the differences between KDE and Gnome, two popular desktop environments for Linux. Decide which one is right for you.
How to install .run files?
In Linux, all the “.run” files can be installed by using the “chmod” command and the “Permissions” options to make them executable.
sysctl Command in Linux | Explained
The sysctl command allows the user to modify the kernel parameters on the Linux system at runtime. You should only do that if you are fully aware.
How to Convert mkv to mp4 Using FFmpeg?
FFmpeg is the most widely used video conversion and compression software used for multimedia files … Read More
pwd Command in Linux | Explained
In Linux, the pwd command prints out the directory you are currently working on and provides an exact path from the root to the current directory.
Where is the Word Count on Google Docs?
To access the word count window, hit the “Word count” option from the “Tools” tab in Google Docs or the shortcut key “CTRL+SHIFT+C”.
kill Command in Linux | Explained
The kill command is used to pass different signals in Linux to manage the behavior of the processes. In this blog, the kill command has been explained in detail.
cd Command in Linux | Explained
The cd command in Linux is used to change the directory. We can change our directory to another directory, home directory, or directly to the root directory
How to Use grep Command to Find Text in Files in Linux
The grep command can be used to find the words in the files of Linux. The words can be found in the current directory and its sub-directories.
What is Uname Command in Linux
The uname command is used in Linux to display the basic information of the computer, including kernel name, hostname, kernel version, and processor type.
What is GRUB in Linux? What is it Used for?
GRUB is the abbreviation of GRand Unified Bootloader and is a bootloader and a boot manager. GRUB plays a key role in the Boot process.
How to Start, Stop & Restart Services in Ubuntu
To start, stop & restart the services on Ubuntu, use any of these“systemctl”, “service”, and “init” command utilities. Read out this article to learn more.
How to Wrap Text in Google Docs?
Google Docs allows users to wrap text by using the “Wrap text” icon in the Google Docs (Desktop) and by using the “Wrap text” option in Google Docs Mobile App”.
How to Make a Line in Google Docs?
In Google Docs, a line is made using the “Drawing” tool or the “Horizontal line”. Both options are available in the “Insert” tab of the MenuBar.
How to Cite APA Refernece in Google Docs
Google Docs offers the “Citations” option to cite the APA references by choosing different sources such as “Book”, “Websites”, “Journal articles”, etc.
How to Put an Accent Over a Letter on Google Docs?
The user can put an accent over a letter using the “Insert Special Characters” window. An “Easy Accents” extension is also beneficial for performing this task.
How to Search for a Word in Google Docs?
Google Docs offers a shortcut key, “CTRL+F”, and a “Find and Replace” box to search for a particular word in an existing document.
How to Move Table in Google Docs?
To move a table in Google Docs, the Cut/Paste method is used. The required table can be selected, then cut and paste at a required destination.
How to Insert a Video in Google Docs?
Google Docs doesn’t directly support video insertion. However, the video can be copied into the drawing board from Google slides to insert into Docs.
How to Get the Dictionary Length in Python?
In Python, the “len()” function, the “for loop with isinstance() function”, and the recursive function are used to calculate the dictionary’s length.
How to Open a PDF in Google Docs?
After uploading the pdf file to the Drive folder, you can open a PDF in Google Docs through the “Open with” option. After that, modify it based on their needs.
Python math.log2() – Logarithm to Base 2
In Python, the “math.log2()” function of the “math” module returns the logarithm of the number to base 2. The input number must be greater than zero.
How to Install Linux Mint 21 From USB?
To install Linux Mint 21 from USB, first, download the iso file of Linux Mint 21, make the USB bootable with the downloaded iso file, and finally install it on the computer.
How to Clear apt Cache in Ubuntu 22.04?
Some of the most common usages of the apt command in Ubuntu are updating and … Read More
Is Ubuntu Debian Based?
If you are wondering whether Ubuntu is Debian based or looking for the key similarities and differences between them. Then read this article for more details.
How to Use Outline Tool in Google Docs
Google Docs enables you to write, edit and structure text documents online. An outline is … Read More
How to Make Two Columns in Google Docs
Google Docs provides an online writing environment to modify text with various features. Editors, Researchers, … Read More
How to Make a Fillable Textbox in Google Docs?
Google Docs offer the “Drawing window” and “Table cell” to make a fillable text box in Google Docs. In text boxes, users can add colors based on their needs.
How to Install Visual Studio Code on Ubuntu 22.04
Visual Studio Code can be installed on Ubuntu 22.04 using the apt package manager “sudo apt install code” or using the “sudo snap install code –classic”.
Python Relational Operators | Explained
In Python, the relational operator is used to draw a comparison between values. The return type of these operators is a Boolean (true or false).
Install OpenOffice in Ubuntu 22.04
To install OpenOffice on Ubuntu 22.04, install the JDK. Then download and unzip setup file, move to the “en-US/DEBS/” directory, and install the “.deb” package.
Python re.sub() Method | Replace Strings Using Regex
The “re.sub()” method is used to replace the strings by taking a string variable as an input. The “re.sub()” method is invoked after the “re” module.
How to Add a Border in Google Docs
Google Docs provides the “Format” button and “Insert” button to add a border. The borders can also be customized as per the user’s requirements.
How to Convert Int to Binary in Python
In Python, the “bin()” function, “format()” function, “f-string()” function, and “str.format()” method can be used to convert an integer to binary.
How to Indent Citations in Google Docs
The “Ruler”, “Indentation options”, and “Indent buttons” are utilized to indent citations in the selected text of Google Docs.
How to add a user to a group in Linux
A user can be added to a newly created group, added to multiple groups at once or moving the user from one group to another.
How to copy files from one directory to another in Linux
Files are copied to a different directory using either the “cp” command or the “rsync” tool. Using these, single, multiple, as well as all files can be copied.
How to Install Skype on Ubuntu 22.04
On Ubuntu 22.04, to install Skye, either use Ubuntu Software Center or Snap by executing the “sudo snap install skype –classic” command on the terminal.
Install Latest Telegram Desktop Messenger App on Ubuntu 22.04
To install Telegram on Ubuntu 22.04, use Ubuntu Software Center or run “sudo apt install telegram-desktop -y” on the Ubuntu 22.04 terminal.
How to Install Apache on Ubuntu 22.04
To install the Apache web server on Ubuntu 22.04, first, update the system packages. Then install Apache using “sudo apt install apache2” command on terminal.
How to Install XnView MP on Ubuntu 22.04
XnView MP can be installed on Ubuntu 22.04 using the DEB package or from the flathub repository. XnView MP has not released its repo for Ubuntu 22.04 yet.
Create Animated Presentations with AnimationMaker on Ubuntu 22.04
First, you must install Animation Maker on Ubuntu 22.04. After installation, you can use this robust tool to create animated presentations on Ubuntu 22.04.
How to Install & Use KIO GDrive in Ubuntu 22.04
To install KIO GDrive on Ubuntu 22.04, first install the KDE account provider package. Then install KIO GDrive using “sudo apt install -y kio-gdrive” command.
How to reset the root password on Ubuntu 22.04
To reset root password, open and edit GRUB menu, find line begins with “linux”, add “rw init=/bin/bash” line and use “passwd” command to reset password.
How to Install ZOOM on Ubuntu 22.04 Jammy Jellyfish
Zoom can be installed on Ubuntu 22.04 using the GUI support of snap. Additionally, the deb package of ZOOM can also be used to install it on Ubuntu 22.04.
Install and set up Postman on Ubuntu 22.04
To install Postman on Ubuntu 22.04, first, install snap utility on Ubuntu 22.04 and execute the “$ sudo snap install postman” command on Ubuntu terminal.
How to Download and Install Google Fonts on Ubuntu 22.04
To download and install Google Fonts on Ubuntu 22.04, first download Font zip file from Google site, extract it, then install Font Manager to install Fonts.
How to Install Sublime Text editor 4 on Ubuntu 22.04
Sublime text can be installed by adding its repository to Ubuntu 22.04. You can also use snap store to get Sublime on Ubuntu 22.04.
