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What is MariaDB and How to Install MariaDB On Windows

Today, We will learn the basics of MariaDB and Will also Download and install MariaDB on Windows. What is MariaDB?

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SQL DEFAULT Constraint : add Default Value Into a Column

September 6, 2021September 6, 2021 eduguru 0 Comments MySQL, sql constraint, sql default constraint example, sql default constraints

The DEFAULT constraint is used to set a default value for a column. In the below example City column has the default

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MySQL CHECK Constraint

August 31, 2021 eduguru 0 Comments MySQL CHECK Constraint

MySQL CHECK Constraint The CHECK the constraint is used to limit the value range that can be placed in a column. If

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MySQL PRIMARY KEY Constraint

August 31, 2021 eduguru 0 Comments and cannot contain NULL values. A table can have only ONE primary key; and in the table, MySQL PRIMARY KEY Constraint, MySQL PRIMARY KEY Constraint The PRIMARY KEY constraint uniquely identifies each record in a table. Primary keys must contain UNIQUE values

MySQL PRIMARY KEY Constraint The PRIMARY KEY constraint uniquely identifies each record in a table. Primary keys must contain UNIQUE values, and

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UNIQUE Constraint

August 31, 2021 eduguru 0 Comments

UNIQUE Constraint The UNIQUE constraint ensures that all values in a column are different. Both the UNIQUE and PRIMARY KEY constraints provide a guarantee for uniqueness

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MySQL – NOT NULL Constraint

August 31, 2021 eduguru 0 Comments a column can hold NULL values. The "NOT NULL constraint" enforces a column to NOT accept NULL values. This enforces a field to always contain a value, NOT NULL Constraint, NOT NULL Constraint By default, which means that you cannot insert a new record

NOT NULL Constraint By default, a column can hold NULL values. The “NOT NULL constraint” enforces a column to NOT accept

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MySQL Constraints

August 31, 2021 eduguru 0 Comments MySQL Constraints

MySQL Constraints SQL constraints are used to specify rules for data in a table. The constraint in MySQL is used

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MySQL CREATE TABLE Statement

August 31, 2021 eduguru 1 Comment .... ); The column parameters specify the names of the columns of the table. The datatype parameter specifies the type of data the column can hold (e.g. varchar, 'DATE', Address, Address varchar(255), and City columns are of type varchar and will hold characters, and City: Example CREATE TABLE Persons ( PersonID int, and the maximum length for these fields is 255 characters. The empty "Persons" table will now look like this: PersonID LastName FirstName Address City, City varchar(255) ); The PersonID column is of type int and will hold an integer. The LastName, column2 datatype, column3 datatype, etc.). MySQL CREATE TABLE Example The following example creates a table called "Persons" that contains five columns: PersonID, FirstName, FirstName varchar(255), integer, LastName, LastName varchar(255), MySQL CREATE TABLE Statement, MySQL CREATE TABLE Statement The MySQL CREATE TABLE Statement The CREATE TABLE statement is used to create a new table in a database. Syntax CREATE TABLE table_name ( column1 datatype

MySQL CREATE TABLE Statement The MySQL CREATE TABLE Statement The CREATE TABLE statement is used to create a new table in a

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MySQL AUTO INCREMENT Field

August 31, 2021 eduguru 0 Comments MySQL AUTO INCREMENT Field

MySQL AUTO INCREMENT Field What is an AUTO INCREMENT Field? Auto-increment allows a unique number to be generated automatically when

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Install MySQL / MariaDB Server with PhpMyAdmin Centos 8

August 24, 2021 eduguru 0 Comments Install MySQL / MariaDB Server with PhpMyAdmin Centos 8, Install MySQL / MariaDB Server with PhpMyAdmin Centos 8 Install PHP, MySQL support package for PHP

Install MySQL / MariaDB Server with PhpMyAdmin Centos 8 Install PHP, MySQL support package for PHP, and other PHP packages

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