Views in SQL are kind of virtual tables. A view also has rows and columns as they are in a real table in the database. We can create a view by selecting fields from one or more tables present in the database. A View can either have all the rows of a table or specific rows based on certain conditions. Under what circumstances would you create a View?

What is mean by cursor in sql

In a relational database, the number of columns in a table that are able to satisfy the constraints that have been defined may be decreased by the use of an operation called select.Which is it: the right answer or the erroneous answer?

A select operation in a relational database is used to reduce the size of a table by deleting columns that meet particular requirements.Is this true or false?

What happens if you leave a key partition's argument empty (in SQL)?

A select operation in a relational database decreases the size of a table by removing columns that fulfill certain criteria.Is this statement truthful or false?

A select operation in a relational database decreases the size of a table by removing columns that fulfill certain criteria.Is this statement truthful or false?

how to build a bookstore database with Entities for Tables Book Authors Bookstore Members Sales transaction Inventory

Adjust the following information so that1) all users on the system are able to run the SQL Executable and 2) multiple users (such as a team of software engineers) have the power to modify the SQL Executable Introduce any new groups that are needed and assign them group IDs USERS SQL Manager UID: 3 GROUPS SQL Users GID: 5 FILESDatabase File Owner 3 Group NA owner: rw group: - world: - setUID: 0 setGID: 0 sticky: 0 SQL Executable Owner 3 Group 5 owner: rwx group: r-x world: - setUID: 1 setGID: 0 sticky: 0

A select operation in a relational database reduces the size of a table by removing columns that meet particular criteria.Is this true or false?

Below is "Book Order," the only table in library management system’s database. The design of "Book Order" as you may tell is in the zero normal formal form, you as the database designer want to convert the design into the third normal form. Order ID Special order date Customer ID Customer last name Customer First name Customer birth date Book ISBN1 Book Title 1 Book Author 1 Book publication year 1 Book ISBN2 Book Title 2 Book Author 2 Book publication year 2 Store ID Store name Store location Special order status Book Order(Order ID, Special order date, Customer ID, Customer last name, Customer First name, Customer birth date, Book ISBN1, Book Title 1, Book Author 1, Book publication year 1, Book ISBN2, Book Title 2, Book Author 2, Book publication year 2, Store ID, Store name, Store location, Special order status)

Using php and sql: Create a PDO object to connect to your database for running select queries.Write a database query to output all the messages in the messages table.