Which of the following operations will be performed by DML commands?

DML, or Data Manipulation Language, is used to access and manipulate data in a database. The operations performed by DML commands include:

1. Insertion of data into the database: This is done using the INSERT command. It allows you to add one or more records to any single table in a database.

2. Retrieval of data from the database: The SELECT command is used for this operation. It allows you to retrieve data from one or more tables in the database.

3. Updating data in the database: The UPDATE command is used for this operation. It allows you to modify the values of the specified columns in all rows that satisfy the condition.

4. Deletion of data from the database: This is done using the DELETE command. It allows you to remove one or more rows from a table in the database.

So, DML commands are used to perform all the above operations on a database.

DML, or Data Manipulation Language, is used to access and manipulate data in a database. The operations performed by DML commands include:

1. Insertion of data into the database: This is done using the INSERT command. It allows you to add new rows (also known as records or tuples) of data into a table in the database.

2. Retrieval of data from the database: This is done using the SELECT command. It allows you to fetch, or retrieve, data from one or more tables in the database. The data retrieved can be displayed in a variety of ways, depending on the specific command used.

3. Updating of data in the database: This is done using the UPDATE command. It allows you to modify the values of data stored in a table.

4. Deletion of data from the database: This is done using the DELETE command. It allows you to remove one or more rows of data from a table in the database.

So, in summary, DML commands are used to insert, retrieve, update, and delete data in a database.

DML, or Data Manipulation Language, is a subset of SQL (Structured Query Language). It is used to retrieve, insert, delete, and modify database records. The operations performed by DML commands include:

1. SELECT: This command is used to select specific data from a database. It retrieves zero or more rows of data from one or more database tables or database views.

2. INSERT: This command is used to insert data into a table. It adds one or more new rows of data to an existing database table.

3. UPDATE: This command is used to modify the existing records in a table. It modifies the values of specified columns in all rows that satisfy the condition.

4. DELETE: This command is used to delete existing records in a table. It removes one or more rows from a table, leaving the table structure intact.

So, in summary, DML commands are used for managing data within schema objects.