/* The single-row subquery returns one row. Multiple-row subqueries return sets of rows. These queries are commonly used to generate result sets that will be passed to a DML or SELECT statement for ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

insert into products values(2,'Realme Mobile',20000,30,'Delhi'); insert into products values(3,'Boat earpods',3000,50,'Delhi'); insert into products values(4,'Levono ...

operand is one of the following: constant is a number or a quoted character string (or other special notation) that indicates a fixed value. Constants are also called literals. Constants are described ...