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* `reversed()` is a **built-in Python function** used to iterate through a sequence in **reverse order**. It returns a **reverse iterator object**. It...
* `sorted()` is a **built-in Python function used to sort iterable objects**. It returns a **new list containing sorted elements**. The original itera...
* `enumerate()` is a **built-in Python function**. It adds a **counter to iterable objects**. It returns pairs of **(index, element)**. The counter **...
The **`DELETE`** command is used to remove unwanted records from a table in a database. It allows users to delete specific rows using conditions or re...
The **`UPDATE`** command is used to modify existing data stored in a database table. By specifying the columns and conditions, users can update specif...
The **`HAVING` clause** is used to apply conditions on grouped data in SQL queries. It is especially useful when working with aggregate functions and...
The **`GROUP BY` clause** is used in SQL to organize data into groups based on one or more columns. It is commonly used with aggregate functions to pe...
The **`ORDER BY` clause** is used to arrange the results of a SQL query in a specific order. By sorting data based on one or more columns, users can e...
The **`WHERE` clause** is an essential part of SQL that allows users to retrieve, update, or delete specific records based on conditions. By filtering...
The **`SELECT`** query is used to retrieve data from tables in a database. It allows users to view complete records or specific columns depending on t...
The **`INSERT INTO`** command is used to add new records to a table in a database. It allows users to insert data into specific columns or all columns...
The **`DESCRIBE` command** is used to display the structure of a table in a database. It provides detailed information about columns, data types, and...