SQL Correlated Subqueries are used to select data from a table referenced in the outer query. The subquery in a correlated subquery is related to the outer query, hence the term "correlated". Each execution of the subquery in the correlated subquery depends on the row processed by the outer ...
If we want to update that ord_date in 'neworder' table with '15-JAN-10' which have the difference of ord_amount and advance_amount is less than the minimum ord_amount of 'orders' table the following SQL can be used:Sample table: orders ORD_NUM ORD_AMOUNT ADVANCE_AMOUNT ORD_DATE CUST...
>, <, <= can be used with a single subquery. The following example uses ' <' operator in the outer query WHERE clause. The AVG() function is used in the subquery to get the average order amount, which is passed to the WHERE clause of the outer query. ...
A subquery can be used before or after any of the comparison operators. The subquery can return at most one value. The value can be the result of an arithmetic expression or a column function. SQL then compares the value that results from the subquery with the value on the other side of...
Practice with solution of exercises on SQL SUBQUERIES using ANY, ALL, BETWEEN, IN, AND, EXISTS operator on HR database, and more from w3resource.
SQL Code: -- This SQL code deletes records from the 'agent1' table based on a condition involving data from another table 'customer'.DELETEFROMagent1 da-- This line specifies the action of deleting records from the 'agent1' table, aliasing it as 'da'.WHERE3IN(-- This line specifies ...
Practice with solution of exercises on SQL SUBQUERIES using ANY, ALL, BETWEEN, IN, AND, EXISTS operator on HR database, and more from w3resource.
5.Write a SQL statement to change the email column of the employees table with 'not available' for those employees who belongs to the 'Accounting' department. Sample table: employees Sample table: departments Sample Solution: Code: -- This SQL statement updates the 'email' column in the 'emp...
The said query in SQL that retrieves the name of the manager(s) from the employees table who have the highest number of direct reports, along with the number of employees reporting to them. The query joins the employees table with itself using the manager_id column to match empl...
The said query in SQL that retrieves all columns (denoted by *) from the employees table where the salary is between the minimum salary in the employees table and 2500. The minimum salary is calculated using a subquery in the WHERE clause, where the MIN function is used to determine the ...