The UPDATE command in MySQL is used to modify the values of any specific record. Step # 8: Update a Record in your Table in MySQL in Ubuntu 20.04: In the very same manner, if you want to display the values of a specific column or multiple columns, then you can replace “*” in the command above with the name of that specific column. If you want to display all the records or entries of your table in MySQL at once, then you can execute the following command: mysql> SELECT * From Student Įxecuting this command will display all the records of your table in a nice tabular form as shown in the image below: The SELECT statement is used for this purpose.
When we have added a few records to our table, it is the right time to view these records. Step # 7: Display the Entries of your Table in MySQL in Ubuntu 20.04: In the very same manner, we have inserted another record as shown in the images that follow: When our new record will be successfully added to our table, we will receive the message shown in the image below on the MySQL shell. You can change these values according to your own choice. Once a table has been created in the MySQL database, we can insert records to this table by executing the following command: mysql> INSERT INTO Student VALUES (1, ‘Ayesha’, 24) Step # 6: Insert Records into the Newly Created Table in MySQL in Ubuntu 20.04: If this command is executed successfully, you will receive the message shown in the image below on the MySQL shell. We created three columns named StudentID, StudetName, and StudentAge with the data types int, varchar(255), and int respectively. You can create as many columns or attributes for your table as you want. represent the names of the columns of your database whereas Datatype refers to the data types of each of these columns respectively. Here, you have to replace TableName with any name that you want for your table. Step # 5: Create a Table in MySQL in Ubuntu 20.04:Īfter switching to our desired database, we can create a table in MySQL by running the following command: mysql> CREATE TABLE TableName(Col1 Datatype, Col2 Datatype, ….) When this database will be selected successfully, you will receive the message shown in the image below on the MySQL shell. For switching to our newly created database, we will run the following command: mysql> use MyDB Without selecting a specific database, you are not allowed to create tables in MySQL. When a database with your desired name has been created, you need to switch to that database so that when you will create tables in MySQL, they will be created inside this database. Step # 4: Switch to the Newly Created Database in MySQL in Ubuntu 20.04: Once your database is created, you will receive a message on MySQL shell similar to the one shown in the image below: Here, you have to replace DBName with any name that you want for your database. A database in MySQL can be created with the following command: mysql> create database DBName
Now when we are inside the MySQL shell, the first thing that we need to do is to create a database so that we can create tables inside it to perform different operations. Step # 3: Create a Database in MySQL in Ubuntu 20.04: When you will run the above-mentioned command, you will immediately enter MySQL shell as shown in the image below: Once you are sure of the existence of MySQL on your Ubuntu 20.04 system, you can access the MySQL shell for running commands in it by executing the following command: sudo mysql Step # 2: Enter MySQL Shell from Ubuntu 20.04 Terminal:
MYSQL DELETE COLUMN INSTALL
However, just in case, MySQL is not installed on your Ubuntu 20.04 system, then before proceeding further, you can conveniently install it by following our tutorial on the installation of MySQL on Ubuntu 20.04. If MySQL will be installed on your Ubuntu 20.04 system, then you will be able to see its version after executing this command as shown in the image below: To check if MySQL is installed on our Ubuntu 20.04 system or not, we will execute the following command in our terminal: mysql -version When you intend to work with tables in MySQL, you must have MySQL or MariaDB installed and working on your Ubuntu 20.04 system. To work with tables in MySQL in Ubuntu 20.04, you can go through all the steps described below: Step # 1: Ensure that a MySQL compatible database is installed on your Ubuntu 20.04 System Working with Tables (Select, Update, Delete, Create Table, Alter Table, and Drop Table) in MySQL in Ubuntu 20.04: Therefore, today we will learn to work with tables in MySQL and MariaDB in Ubuntu 20.04. There are multiple different operations associated with this entity with which you can manipulate your data. The most important entity of any database is a table. It allows you to work very efficiently with large bulks of data. MySQL is one of the most commonly used relational database management systems (DBMS).
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