Souy Soeng

The Essential Guide To MySQL ISNULL Function The ISNULL function in MySQL is used to check whether an expression or value is NULL . It returns a boo…

MySQL IFNULL The IFNULL function in MySQL is used to return a specified value if the expression is NULL . If the expression is not NULL , it returns…

MySQL CHECK Constraint The CHECK constraint in MySQL ensures that values in a column meet specific conditions before inserting or updating data. It …

MySQL CREATE INDEX The CREATE INDEX statement in MySQL improves query performance by allowing faster lookups in a table. Indexes work like an optim…

MySQL AND Operator The AND operator in MySQL is used to combine two or more conditions in a WHERE , HAVING , or ON clause. It ensures that all the …

MySQL NULLIF() Function The NULLIF() function in MySQL compares two expressions and returns NULL if they are equal. If the expressions are not equa…

MySQL FLOOR Function The FLOOR() function in MySQL is a mathematical function that returns the largest integer less than or equal to a given number…

MySQL CASE Expression The CASE expression in MySQL is a conditional expression that allows you to return different values based on conditions, simi…

MySQL Copy Table With Examples Copying a table in MySQL can be useful for backups, testing, and schema duplication . There are multiple ways to copy …

How to Find Duplicate Values in MySQL Duplicate values in a MySQL table can cause data integrity issues. This guide shows different ways to identify …

MySQL LAST_INSERT_ID Function The LAST_INSERT_ID() function in MySQL returns the most recently generated AUTO_INCREMENT value for the last INSERT …

Using MySQL UNIQUE Index To Prevent Duplicates A UNIQUE index in MySQL ensures that all values in a column or combination of columns are distinct a…

MySQL LAST_INSERT_ID Function The LAST_INSERT_ID() function in MySQL returns the most recently generated AUTO_INCREMENT value for the last INSERT …

MySQL Reset Auto Increment Values In MySQL, the AUTO_INCREMENT attribute generates unique values for a column, typically the primary key . However, …

MySQL DROP TABLE The DROP TABLE statement in MySQL is used to permanently delete a table from the database, including all its data, structure, and …

MySQL TRUNCATE Function The TRUNCATE() function in MySQL is used to remove the decimal places from a number to a specified precision. It does not …

MySQL DENSE_RANK Function The DENSE_RANK() function in MySQL is used to assign a rank to each row within a partition of a result set. Unlike RANK()…

MySQL MIN() Function The MIN() function in MySQL is used to retrieve the smallest value from a column in a table. It is commonly used in aggregatio…

MySQL YEAR() Function The YEAR() function in MySQL extracts the year from a given date or datetime expression and returns it as a four-digit number.…

MySQL SHOW PROCESSLIST Statement The SHOW PROCESSLIST statement in MySQL provides information about currently running threads (or processes) in the …

MySQL NOT NULL Constraint The NOT NULL constraint in MySQL ensures that a column cannot have a NULL value. It is used to enforce data integrity by …

MySQL MAX() Function The MAX() function in MySQL is an aggregate function that returns the largest (maximum) value from a specified column in a data…

Understanding SQL Primary Key In SQL, a Primary Key is a constraint that uniquely identifies each record in a table. It ensures that no two rows in …

MySQL Full-Text Search MySQL Full-Text Search (FTS) is a powerful way to perform advanced text-based searches within database tables. Unlike simple …

MySQL SYSDATE() Function The SYSDATE() function in MySQL returns the current date and time in the format YYYY-MM-DD HH:MM:SS . Unlike the NOW() fun…

MySQL DATE_FORMAT() Function The DATE_FORMAT() function in MySQL is used to format a date or datetime value into a custom string based on a specifie…

MySQL NOW() Function The NOW() function in MySQL is used to retrieve the current date and time in the format YYYY-MM-DD HH:MM:SS . It is a simple an…

MySQL INTERVAL The INTERVAL keyword in MySQL is primarily used in two contexts: Date and Time Arithmetic : Adding or subtracting intervals to/from d…

MySQL DATE_ADD() Function The DATE_ADD() function in MySQL is used to add an interval of time to a given date or datetime value. This function is pa…

MySQL DATEDIFF() Function The DATEDIFF() function in MySQL calculates the difference in days between two date values. It returns the number of days …