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Mysql commands in linux

admin — Thu, 16 Feb 2023 11:47:37 +0000

Mysql commands in linux

MySQL is a popular open-source relational database management system that is widely used for web applications, data warehousing, and e-commerce. It is a robust and scalable database that is highly customizable and can be configured to meet the requirements of any enterprise or organization. MySQL is also available on the Linux platform, and in this article, we will discuss the essential MySQL commands that are frequently used in Linux.

mysql:

The mysql command is used to access the MySQL database management system from the command-line interface. It allows you to connect to a MySQL server, authenticate yourself, and execute SQL commands. The syntax for connecting to a MySQL server is as follows:

$ mysql -h hostname -u username -p password

Where hostname is the name or IP address of the MySQL server, username is the user who has access to the database, and password is the password for the user.

create database:

The create database command is used to create a new database in MySQL. The syntax for creating a database is as follows:

mysql>create database

Where database_name is the name of the database that you want to create.

show databases:

The show databases command is used to display a list of all the databases that are currently available in the MySQL server. The syntax for the show databases command is as follows:

mysql>show databases;

This command will display a list of all the databases that are currently available in the MySQL server.

use database:

The use database command is used to switch to a specific database that you want to work with. The syntax for the use database command is as follows:

mysql>use DATABASENAME

Where database_name is the name of the database that you want to switch to.

create table:

The create table command is used to create a new table in a MySQL database. The syntax for creating a table is as follows:

mysql>create table table_name
(column1 datatype, 
column2 datatype,
column3 datatype, 
…);

Where table_name is the name of the table that you want to create, column1, column2, column3 are the column names, and datatype is the type of data that will be stored in the column.

describe table:

The describe table command is used to display the structure of a table in MySQL. The syntax for the describe table command is as follows:

mysql> describe table_name;

Where table_name is the name of the table that you want to describe.

select:

The select command is used to retrieve data from a MySQL database. The syntax for the select command is as follows:

mysql>select column1, column2, column3, … from table_name;

Where column1, column2, column3 are the columns that you want to retrieve data from, and table_name is the name of the table that you want to retrieve data from.

insert:

The insert command is used to add new data to a table in a MySQL database. The syntax for the insert command is as follows:

mysql>insert into table_name(column1, column2, column3, …) values(value1, value2, value3, …);

Where table_name is the name of the table that you want to insert data into, column1, column2, column3 are the columns that you want to insert data into, and value1, value2, value3 are the values that you want to insert into the columns.

update:

The update command is used to modify existing data in a MySQL database. The syntax for the update command is as follows:

mysql>update table_name set column1 = value1, column2 = value2, … where condition;

Where table_name is the name of the table that you want to update, column1, column2 are the columns that you want to update, value1, value

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How to uninstall apps from mac

admin — Thu, 16 Feb 2023 10:47:28 +0000

How To Uninstall Apps from Mac

If you have been using a Macbook for some time, it is likely that you have installed a lot of applications. While it is easy to install apps, it is equally important to remove them when you no longer need them. Uninstalling apps from a Macbook is pretty straightforward, and this article will take you through the process.

Using Launchpad:

Launchpad is an easy way to view and manage all the applications on your Macbook. To remove an app using Launchpad, follow these steps:

Click on the Launchpad icon in the Dock.
Find the app you want to delete.
Click and hold the app until it starts to jiggle.
Click on the ‘x’ icon on the app icon.
Click ‘Delete’ when prompted to confirm the removal.

Using Finder:

Finder is the file management system on Macs, and it can also be used to uninstall apps. To do this, follow these steps:

Open Finder and go to the ‘Applications’ folder.
Find the app you want to remove.
Click on the app and drag it to the Trash icon in the Dock.
Right-click on the Trash icon and select ‘Empty Trash’ to permanently delete the app.

Using the Launchpad context menu:

This method is an easy way to remove apps from Launchpad. Here’s how to do it:

Open Launchpad.
Click on the app you want to remove.
Hold down the Option key on your keyboard until the icons start to jiggle.
Click on the ‘x’ icon on the app icon.
Click ‘Delete’ when prompted to confirm the removal.

Using a third-party app:

There are several third-party apps that you can use to uninstall apps on your Macbook. Some of the popular options include AppCleaner, CleanMyMac, and AppZapper. These apps scan your system for all the files related to the app you want to remove and delete them for you.

In conclusion, there are several ways to uninstall apps on your Macbook. Whether you choose to use Launchpad, Finder, or a third-party app, the process is straightforward and should not take you long. By removing apps that you no longer use, you can free up space on your Macbook and keep it running smoothly.

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